CN105543740B - Improve the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy - Google Patents
Improve the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy Download PDFInfo
- Publication number
- CN105543740B CN105543740B CN201510922029.XA CN201510922029A CN105543740B CN 105543740 B CN105543740 B CN 105543740B CN 201510922029 A CN201510922029 A CN 201510922029A CN 105543740 B CN105543740 B CN 105543740B
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- treatment
- handled
- solution
- technology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 137
- 230000007797 corrosion Effects 0.000 title claims abstract description 43
- 238000005260 corrosion Methods 0.000 title claims abstract description 43
- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 238000012545 processing Methods 0.000 title claims abstract description 26
- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- 230000032683 aging Effects 0.000 claims abstract description 62
- 238000010791 quenching Methods 0.000 claims abstract description 47
- 230000000171 quenching effect Effects 0.000 claims abstract description 47
- 230000001550 time effect Effects 0.000 claims abstract description 27
- 239000000243 solution Substances 0.000 claims description 58
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 39
- 239000011780 sodium chloride Substances 0.000 claims description 26
- 239000012266 salt solution Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims 2
- 238000005660 chlorination reaction Methods 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 20
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000031709 bromination Effects 0.000 description 2
- 238000005893 bromination reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 208000016261 weight loss Diseases 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002180 anti-stress Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Abstract
The invention discloses a kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment, the Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, the one-level Ageing Treatment is handles the good aluminium alloy of Quenching Treatment 8 hours at 108 DEG C 112 DEG C, and the secondary time effect is processed as at 133 DEG C 137 DEG C handling aluminium alloy 10 hours.The present invention has the Corrosion Protection for improving aluminium alloy, while ensure that the hardness and tensile strength of aluminium alloy.
Description
Technical field
The present invention relates to metal heat treatmet field.It is more particularly related to which a kind of improve corrosive protection of aluminium alloy corrosion
The Technology for Heating Processing of energy.
Background technology
Aluminium alloy density is low, but intensity is higher, near or above high-quality steel, and plasticity is good, can be processed into various section bars, tool
There are excellent electric conductivity, thermal conductivity and corrosion stability, industrially widely use, usage amount is only second to steel.Some aluminium alloys can be adopted
Good mechanical performance, physical property and corrosion resistance are obtained with heat treatment.
Although aluminium alloy is with good mechanical property, however as widely using for aluminium alloy, its under arms during,
Corroded unavoidably, cause it to fail.The factor of influence corrosion of aluminium alloy sensitiveness has a lot, such as at external environment condition, surface
Reason, metallurgy factor and Technology for Heating Processing etc..Wherein Technology for Heating Processing is very important influence factor, and formulates rational heat
Resolving system is come study hotspot that the anticorrosion stress-resistant performance that improves aluminium alloy is also all the time.Conventional method is by workpiece heat
Plating anticorrosion material is carried out after processing again, technique is complex, and coating easily comes off.
Why Technology for Heating Processing can improve the decay resistance of aluminium alloy, be because of the alloy in heat treatment process
Microstructure is changed, and the change of these microstructures can make corrosion susceptibility change.Common Technology for Heating Processing
Including solution treatment, Ageing Treatment etc., wherein corrosion susceptibility influence of the system of ageing treatment on alloy is larger.Aluminium alloy is in warp
Cross after peak value Ageing Treatment, intra-die, which is separated out on half coherence GP areas of small and dispersed, crystal boundary, precipitated phase, this microstructure
It is very sensitive to stress corrosion although making alloy have highest intensity.Three-step aging, especially regression and re-ageing by contrast
Heat treating regime can keep the transgranular tiny GP areas of peak value timeliness, while allow the precipitated phase of crystal boundary to be roughened, this microstructure
Alloy is set to maintain the intensity of peak aged, while the anti-stress corrosion performance of alloy is also improved, but at this heat
Reason system technological parameter is more complicated, it is difficult to is precisely controlled and operates, and has to be optimized in practice in engineering.Comparatively, during twin-stage
Wetted constructures code in effect is simpler than three-step aging, and the roughening of Grain Boundary Precipitates is acted on while having both three-step aging, because
This can make alloy possess good drag corrosive nature.
Two-stage time effect heat treating regime is studied very early, but because it considerably reduces intensity, and wastes energy consumption,
Therefore in not yet thering is preferable heat treating regime really can be applied to when production at present.Therefore, design a kind of rational double
Level aging strengthening model system turns into the study hotspot for improving corrosion resistance of aluminum alloy.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
It is a still further object of the present invention to provide a kind of Technology for Heating Processing of aluminium alloy, the anticorrosive property of aluminium alloy is improved
Can, while ensure that the hardness and tensile strength of aluminium alloy.
Corrosive protection of aluminium alloy corrosion energy is improved there is provided one kind according to object of the present invention and further advantage in order to realize
Technology for Heating Processing, including solution treatment, Quenching Treatment and Ageing Treatment, the Ageing Treatment includes one-level Ageing Treatment successively
Handled with secondary time effect, the one-level Ageing Treatment is small for the good aluminium alloy of Quenching Treatment to be handled to 8 at 108 DEG C -112 DEG C
When, the secondary time effect is processed as at 133 DEG C -137 DEG C handling aluminium alloy 10 hours.
Preferably, the aluminium alloy includes the component of following mass percent：6.5%-7.5% Si, 0.30%-
0.45% Mg, 0%-0.2% Ti, 0%-0.12% Fe, 0%-0.05% Mn, 0%-0.1% Cu, 0%-
0.05% Zn, surplus is Al.
Preferably, the process of the Quenching Treatment is that the good aluminium alloy of solution treatment is used into saline treatment at room temperature,
The content of sodium chloride is 80-110g/L in the salt solution.
Preferably, the solution treatment is specially：Aluminium alloy is handled into 50-70min at 490 DEG C -540 DEG C.
Preferably, after the solution treatment of the aluminium alloy has handled 20min under the conditions of 490 DEG C -540 DEG C, to solid solution
Aluminium alloy in processing leads to direct current, and continuation handles 30-50min at 490 DEG C -540 DEG C；Wherein, it is passed through the direct current of aluminium alloy
Electricity rises in staged, and the minimum electrical current density being passed through is 1A/cm2, the maximum current density being passed through is 10A/cm2。
Preferably, after aluminium alloy handles 30-40min at room temperature with salt solution, then with mass fraction be 2% bromination
Sodium solution Quenching Treatment aluminium alloy 30-40min, treatment temperature is -5 DEG C.
The present invention at least includes following beneficial effect：The aluminium alloy of the present invention first carries out solution treatment, in being aluminium alloy
Disperse phase is partly dissolved, and Quenching Treatment and Ageing Treatment are then carried out again, improves its corrosion resistance, while ensure that aluminium is closed
The hardness and tensile strength of gold.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the weight-loss corrosion rate diagram of embodiments of the invention 3 and the aluminium alloy of comparative example 5；
Fig. 2 is microscope mirror figure below after the corrosion of the embodiment of the present invention 3；
Fig. 3 is microscope mirror figure below after the corrosion of comparative example 5 of the present invention.
Embodiment
With reference to embodiment, the present invention is described in further detail, to make those skilled in the art with reference to specification
Word can be implemented according to this.
Embodiment 1
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 112 DEG C, the secondary time effect is processed as at 137 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：7.5% Si, 0.45% Mg, 0.2% Ti,
0.12% Fe, 0.05% Mn, 0.1% Cu, 0.05% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 110g/L.
The solution treatment is specially：Aluminium alloy is handled into 70min at 540 DEG C.
Embodiment 2
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 108 DEG C, the secondary time effect is processed as at 133 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：6.5% Si, 0.30% Mg, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 80g/L.
The solution treatment is specially：Aluminium alloy is handled into 50min at 490 DEG C.
Embodiment 3
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 110 DEG C, the secondary time effect is processed as at 135 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：7% Si, 0.4% Mg, 0.1% Ti, 0.1%
Fe, 0.02% Mn, 0.05% Cu, 0.02% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 100g/L.
The solution treatment is specially：Aluminium alloy is handled into 60min at 520 DEG C.
Embodiment 4
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 108 DEG C, the secondary time effect is processed as at 133 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：6.5% Si, 0.30% Mg, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 80g/L.After aluminium alloy handles 30min at room temperature with salt solution, then with mass fraction be 2% bromination
Sodium solution Quenching Treatment aluminium alloy 30min, treatment temperature is -5 DEG C.
The solution treatment is specially：After the solution treatment of the aluminium alloy has handled 20min under the conditions of 490 DEG C, to
Aluminium alloy in solution treatment leads to direct current, and continuation handles 30min at 490 DEG C；Wherein, the direct current for being passed through aluminium alloy is in rank
Ladder type rises, and the minimum electrical current density being passed through is 1A/cm2, the maximum current density being passed through is 10A/cm2。
Embodiment 5
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 112 DEG C, the secondary time effect is processed as at 137 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：7.5% Si, 0.45% Mg, 0.2% Ti,
0.12% Fe, 0.05% Mn, 0.1% Cu, 0.05% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 110g/L.After aluminium alloy handles 40min at room temperature with salt solution, then with mass fraction be 2% bromine
Change sodium solution Quenching Treatment aluminium alloy 40min, treatment temperature is -5 DEG C.
The solution treatment is specially：After the solution treatment of the aluminium alloy has handled 20min under the conditions of 540 DEG C, to
Aluminium alloy in solution treatment leads to direct current, and continuation handles 50min at 540 DEG C；Wherein, the direct current for being passed through aluminium alloy is in rank
Ladder type rises, and the minimum electrical current density being passed through is 1A/cm2, the maximum current density being passed through is 10A/cm2。
Embodiment 6
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 110 DEG C, the secondary time effect is processed as at 135 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：7% Si, 0.4% Mg, 0.1% Ti, 0.1%
Fe, 0.02% Mn, 0.05% Cu, 0.02% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 100g/L.After aluminium alloy handles 35min at room temperature with salt solution, then with mass fraction be 2% bromine
Change sodium solution Quenching Treatment aluminium alloy 33min, treatment temperature is -5 DEG C.
The solution treatment is specially：After the solution treatment of the aluminium alloy has handled 20min under the conditions of 520 DEG C, to
Aluminium alloy in solution treatment leads to direct current, and continuation handles 40min at 520 DEG C；Wherein, the direct current for being passed through aluminium alloy is in rank
Ladder type rises, and the minimum electrical current density being passed through is 1A/cm2, the maximum current density being passed through is 10A/cm2。
Comparative example 1
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 110 DEG C, the secondary time effect is processed as at 135 DEG C handling aluminium alloy 8 hours.
The aluminium alloy includes the component of following mass percent：7% Si, 0.4% Mg, 0.1% Ti, 0.1%
Fe, 0.02% Mn, 0.05% Cu, 0.02% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 100g/L.
The solution treatment is specially：Aluminium alloy is handled into 60min at 500 DEG C.
Comparative example 2
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 110 DEG C, the secondary time effect is processed as at 135 DEG C handling aluminium alloy 14 hours.
The aluminium alloy includes the component of following mass percent：7% Si, 0.4% Mg, 0.1% Ti, 0.1%
Fe, 0.02% Mn, 0.05% Cu, 0.02% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 100g/L.
The solution treatment is specially：Aluminium alloy is handled into 60min at 500 DEG C.
Comparative example 3
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 110 DEG C, the secondary time effect is processed as at 135 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：7% Si, 0.4% Mg, 0.1% Ti, 0.1%
Fe, 0.02% Mn, 0.05% Cu, 0.02% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 100g/L.After aluminium alloy handles 35min at room temperature with salt solution, then with mass fraction be 2% bromine
Change sodium solution Quenching Treatment aluminium alloy 33min, treatment temperature is -5 DEG C.
The solution treatment is specially：Aluminium alloy is handled into 60min at 500 DEG C.
Comparative example 4
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment,
The Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, and the one-level Ageing Treatment is that Quenching Treatment is good
Aluminium alloy handled 8 hours at 110 DEG C, the secondary time effect is processed as at 135 DEG C handling aluminium alloy 10 hours.
The aluminium alloy includes the component of following mass percent：7% Si, 0.4% Mg, 0.1% Ti, 0.1%
Fe, 0.02% Mn, 0.05% Cu, 0.02% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 100g/L.
The solution treatment is specially：After the solution treatment of the aluminium alloy has handled 20min under the conditions of 520 DEG C, to
Aluminium alloy in solution treatment leads to direct current, and continuation handles 40min at 520 DEG C；Wherein, the direct current for being passed through aluminium alloy is in rank
Ladder type rises, and the minimum electrical current density being passed through is 1A/cm2, the maximum current density being passed through is 10A/cm2。
Comparative example 5
A kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment and Quenching Treatment.
The aluminium alloy includes the component of following mass percent：7% Si, 0.4% Mg, 0.1% Ti, 0.1%
Fe, 0.02% Mn, 0.05% Cu, 0.02% Zn, surplus is Al.
The process of the Quenching Treatment is to use solution treatment good aluminium alloy in saline treatment, the salt solution at room temperature
The content of sodium chloride is 100g/L.
The solution treatment is specially：Aluminium alloy is handled into 60min at 500 DEG C.
Contrast test：
The aging strengthening model system of table 1.
| Group | Heat treatment | Aging strengthening model degree |
| Embodiment 3 | Overaging 1 | 110℃/8h+135℃/10h |
| Comparative example 1 | Peak timeliness | 110℃/8h+135℃/8h |
| Comparative example 2 | Overaging 2 | 110℃/8h+135℃/14h |
The result that comparative example 1 is obtained is peak timeliness：Obtained aluminium alloy obtains hardness and tensile strength is all higher, but elongation
Rate is relatively low, and corrosive nature is not good enough.
The result that embodiment 3 is obtained is overaging 1：Obtained aluminium alloy keeps higher intensity, at the same Plastic phase compared with
Comparative example 1 increases, while having good corrosion resistance.
The result that comparative example 2 is obtained is overaging 2：Although obtained aluminium alloy plasticity and corrosion resistance are compared to contrast
Example 1 is increased, but the intensity of aluminium alloy is substantially reduced, and loses the performance characteristics of cast aluminium alloy gold.
Mechanical property tests：
The aluminium alloy of embodiment 3, embodiment 6, comparative example 3, comparative example 4 and comparative example 5 is tested into its mechanical property, as a result
It is shown in Table 2.
| Group | Tensile strength/MPa | Yield strength/MPa | Elongation percentage/% |
| Embodiment 3 | 234.6 | 226.6 | 9.87 |
| Embodiment 6 | 251.3 | 244.7 | 10.55 |
| Comparative example 3 | 235.5 | 243.2 | 10.13 |
| Comparative example 4 | 250.2 | 230.7 | 9.93 |
| Comparative example 5 | 190.43 | 182.32 | 10.46 |
Weight-loss corrosion test experiments：
Experimental procedure：The aluminium alloy of embodiment 3 and comparative example 5 is tested into its average corrosion performance, using constant temperature infusion method
Corrosion sample, corrosive medium is 3%NaCl (mass percent) and 0.15%H2O2(atomic percentage) mixed aqueous solution, every
15h sampling cleanings are weighed, and simultaneously record data once, while the corrosive medium more renewed continues to be incubated corrosion, protect by whole corrosion process
It is 40 DEG C to hold temperature, and the corrosion duration is 60h, with average corrosion rate (g/ (m2H)) characterize its decay resistance, tie
Fruit sees Fig. 1, Fig. 2 and Fig. 3, and as shown in Figure 1, for the aluminium alloy of embodiment 3 is compared to comparative example 5, average corrosion rate is obvious
Reduction, from Fig. 2 and Fig. 3, the aluminum alloy surface etch pit of embodiment 3 will substantially lack, without obvious concentration phenomenon, contrast
The corrosion of aluminium alloy hole quantity of example 5 is more, and Relatively centralized.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore without departing substantially from power embodiment.
Claims (3)
1. a kind of Technology for Heating Processing for improving corrosive protection of aluminium alloy corrosion energy, including solution treatment, Quenching Treatment and Ageing Treatment, its
It is characterised by, the Ageing Treatment includes one-level Ageing Treatment successively and secondary time effect is handled, the one-level Ageing Treatment is will
The good aluminium alloy of Quenching Treatment is handled 8 hours at 108 DEG C -112 DEG C, the secondary time effect be processed as by aluminium alloy 133 DEG C -
Handled 10 hours at 137 DEG C；
The aluminium alloy includes the component of following mass percent：6.5%-7.5% Si, 0.30%-0.45% Mg, 0%-
0.2% Ti, 0%-0.12% Fe, 0%-0.05% Mn, 0%-0.1% Cu, 0%-0.05% Zn, surplus is
Al；
The process of the Quenching Treatment is that the good aluminium alloy of solution treatment is used into chlorination in saline treatment, the salt solution at room temperature
The content of sodium is 80-110g/L；
The solution treatment is specially：Aluminium alloy is handled into 50-70min at 490 DEG C -540 DEG C.
2. the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy is improved as claimed in claim 1, it is characterised in that the aluminium alloy
Solution treatment handled 20min under the conditions of 490 DEG C -540 DEG C after, aluminium alloy into solution treatment leads to direct current, continues
30-50min is handled at 490 DEG C -540 DEG C；Wherein, the direct current for being passed through aluminium alloy rises in staged, the minimum electricity being passed through
Current density is 1A/cm2, the maximum current density being passed through is 10A/cm2。
3. the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy is improved as claimed in claim 1, it is characterised in that when aluminium alloy is used
Salt solution is handled after 30-40min at room temperature, then with mass fraction be 2% sodium bromide solution Quenching Treatment aluminium alloy 30-
40min, treatment temperature is -5 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922029.XA CN105543740B (en) | 2015-12-14 | 2015-12-14 | Improve the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510922029.XA CN105543740B (en) | 2015-12-14 | 2015-12-14 | Improve the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105543740A CN105543740A (en) | 2016-05-04 |
| CN105543740B true CN105543740B (en) | 2017-10-03 |
Family
ID=55823290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510922029.XA Active CN105543740B (en) | 2015-12-14 | 2015-12-14 | Improve the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105543740B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521370A (en) * | 2016-09-20 | 2017-03-22 | 池州市安安精工铝业有限公司 | High-precision aluminum alloy aging heat treatment process |
| CN108118273B (en) * | 2017-12-11 | 2019-11-12 | 中南大学 | A method of improving aluminium alloy corrosion resistance |
| CN108398320B (en) * | 2018-01-24 | 2020-09-01 | 航天科工防御技术研究试验中心 | Method for measuring tensile stress corrosion of wrought aluminum alloy |
| CN108977739B (en) * | 2018-08-07 | 2019-07-26 | 中南大学 | Aging treatment process that is a kind of while improving intensity of aluminum alloy and anti-stress corrosion performance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004292864A (en) * | 2003-03-26 | 2004-10-21 | Kurimoto Ltd | Heat treatment method for aluminum composite material |
| WO2005068678A1 (en) * | 2004-01-15 | 2005-07-28 | Ryobi Ltd. | Heat treatment method for aluminum die-cast product |
| CN101050512A (en) * | 2006-04-03 | 2007-10-10 | 郑州大学 | High effective heat treatment method for wheel hub founded at low pressure from high performance A356 alloy |
| US20080000561A1 (en) * | 2006-07-03 | 2008-01-03 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Cast aluminum alloy excellent in relaxation resistance property and method of heat-treating the same |
| CN102912265A (en) * | 2011-08-02 | 2013-02-06 | 大亚科技股份有限公司 | Aluminum alloy wheel heat treatment process |
| CN104561857A (en) * | 2014-12-30 | 2015-04-29 | 江苏理工学院 | Two-step aging heat treatment technology for aluminum alloy |
-
2015
- 2015-12-14 CN CN201510922029.XA patent/CN105543740B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004292864A (en) * | 2003-03-26 | 2004-10-21 | Kurimoto Ltd | Heat treatment method for aluminum composite material |
| WO2005068678A1 (en) * | 2004-01-15 | 2005-07-28 | Ryobi Ltd. | Heat treatment method for aluminum die-cast product |
| CN101050512A (en) * | 2006-04-03 | 2007-10-10 | 郑州大学 | High effective heat treatment method for wheel hub founded at low pressure from high performance A356 alloy |
| US20080000561A1 (en) * | 2006-07-03 | 2008-01-03 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Cast aluminum alloy excellent in relaxation resistance property and method of heat-treating the same |
| CN102912265A (en) * | 2011-08-02 | 2013-02-06 | 大亚科技股份有限公司 | Aluminum alloy wheel heat treatment process |
| CN104561857A (en) * | 2014-12-30 | 2015-04-29 | 江苏理工学院 | Two-step aging heat treatment technology for aluminum alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105543740A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105543740B (en) | Improve the Technology for Heating Processing of corrosive protection of aluminium alloy corrosion energy | |
| Rout et al. | Microstructural, mechanical and electrochemical behaviour of a 7017 Al–Zn–Mg alloy of different tempers | |
| Rout et al. | Effect of solution pH on electrochemical and stress corrosion cracking behaviour of a 7150 Al–Zn–Mg–Cu alloy | |
| CN105951008B (en) | A kind of Technology for Heating Processing of high-strength corrosion-resistant erosion aluminium alloy | |
| CN106435418A (en) | Heat treatment technology for improving intercrystalline corrosion resisting performance and stress corrosion resisting performance of 7-series aluminum alloy | |
| US2248185A (en) | Heat treatment of aluminum base alloys | |
| Rout et al. | Influence of aging treatments on alterations of microstructural features and stress corrosion cracking behavior of an Al-Zn-Mg alloy | |
| CN103409710A (en) | Aging heat treatment method of Al-Zn-Mg-Cu aluminum alloy | |
| CN107937842B (en) | A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloy | |
| Tsai et al. | Relationship between electrical conductivity and stress corrosion cracking susceptibility of Al 7075 and Al 7475 alloys | |
| Yang et al. | Effects of cold working and corrosion on fatigue properties and fracture behaviors of precipitate strengthened Cu-Ni-Si alloy | |
| US2789900A (en) | Copper base alloys containing iron and aluminum | |
| CN106148865A (en) | A kind of ageing hot processing method of Al Mg Zn alloy | |
| CN103924175B (en) | Stabilized heat treatment process capable of improving corrosion resistance of aluminum-magnesium alloy containing Zn and Er | |
| JP2011168819A (en) | Austenitic stainless steel and method for manufacturing the same | |
| CN104152825B (en) | A kind of heat treatment method of 7 line aluminium alloys | |
| CN114196895A (en) | Manufacturing method of high-strength aluminum alloy cold-drawn bar for aerospace fastener | |
| Rout et al. | Effect of interrupted ageing on stress corrosion cracking (SCC) behaviour of an Al-Zn-Mg-Cu alloy | |
| Schnatterer et al. | Influence of heat treatments on the stress corrosion cracking susceptibility of 7075 aluminum wires in NaCl solutions | |
| US2783143A (en) | Age-hardenable, copper-base alloy | |
| CN108504973A (en) | A kind of heat treatment method of naval vessel Al-Mg-Si alloy | |
| US3231435A (en) | Method of eliminating stress corrosion cracking in copper-magnesium-zinc series aluminum alloys | |
| CN104278222A (en) | Al-Zn-Mg aluminum alloy two-stage aging heat treatment regime | |
| Feng et al. | Through-thickness inhomogeneity of localized corrosion in 7050-T7451 Al alloy thick plate | |
| CN111663091B (en) | Method for improving corrosion resistance of industrial pure copper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160504 Assignee: Guangxi Baixin New Materials Co.,Ltd. Assignor: BAISE University Contract record no.: X2023980046196 Denomination of invention: Heat treatment process for improving the corrosion resistance of aluminum alloys Granted publication date: 20171003 License type: Common License Record date: 20231108 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231123 Address after: No. 10 Huashihu Road, Yangchenghu Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215100 Patentee after: SUZHOU XIAODONG METAL PRODUCTS Co.,Ltd. Address before: No.21 Zhongshan 2nd Road, Youjiang District, Baise City, Guangxi Zhuang Autonomous Region Patentee before: BAISE University |
|
| TR01 | Transfer of patent right |