CN107130249A - A kind of complex magnesium alloy sacrificial anode material containing Nd and preparation method thereof - Google Patents
A kind of complex magnesium alloy sacrificial anode material containing Nd and preparation method thereof Download PDFInfo
- Publication number
- CN107130249A CN107130249A CN201710309376.4A CN201710309376A CN107130249A CN 107130249 A CN107130249 A CN 107130249A CN 201710309376 A CN201710309376 A CN 201710309376A CN 107130249 A CN107130249 A CN 107130249A
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- CN
- China
- Prior art keywords
- anode material
- sacrificial anode
- magnesium alloy
- alloy sacrificial
- complex magnesium
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- 239000010405 anode material Substances 0.000 title claims abstract description 53
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000011777 magnesium Substances 0.000 claims abstract description 35
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims abstract description 15
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 25
- 229910052749 magnesium Inorganic materials 0.000 claims description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 229910021323 Mg17Al12 Inorganic materials 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 3
- 239000011701 zinc Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 11
- 239000011575 calcium Substances 0.000 description 9
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- PEFIIJCLFMFTEP-UHFFFAOYSA-N [Nd].[Mg] Chemical compound [Nd].[Mg] PEFIIJCLFMFTEP-UHFFFAOYSA-N 0.000 description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 6
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 6
- 229910052593 corundum Inorganic materials 0.000 description 5
- 239000010431 corundum Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000882 Ca alloy Inorganic materials 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- -1 is generated12Nd Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010120 permanent mold casting Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/12—Electrodes characterised by the material
- C23F13/14—Material for sacrificial anodes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/04—Alloys based on magnesium with zinc or cadmium as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The present invention relates to a kind of complex magnesium alloy sacrificial anode material containing Nd and preparation method thereof, belong to sacrificial anode material technical field.The complex magnesium alloy sacrificial anode material containing Nd of the present invention is made up of the component of following mass percent：Zn 6.6%~6.8%, Nd 0.2%~0.4%, Ca 0.3%~0.5%, Sb 0.4%~0.6%, surplus are Mg and inevitable impurity.Al is free of in the magnesium alloy sacrificial anode material of the present invention, it is to avoid netted Mg17Al12The generation of phase, to ensure performance and control cost, Zn addition elects 6.6~6.8wt% as；Micro Nd, Ca, Sb is added, dystectic Mg is generated12Nd、Mg2Ca、Mg13Sb2Phase, can improve the uniformity of tissue, and then magnesium-alloy anode material is consumed in corrosive environment uniformly as effective forming core core, crystal grain thinning.
Description
Technical field
The present invention relates to a kind of complex magnesium alloy sacrificial anode material containing Nd and preparation method thereof, belong to sacrificial anode material
Expect technical field.
Background technology
The economic loss that the corrosion of metal material is caused is huge, and it is that one kind is prevented to carry out electrochemical protection using sacrificial anode
The effective ways of metallic material corrosion, the extension of raising and service life to metal material decay resistance has important meaning
Justice.The chemical property of magnesium alloy preferably, is often used as sacrificial anode material, the cathode material of apparatus is protected,
To extend the service life of cathode material.
But, ordinary magnesium alloy anode material, such as commonly uses trade mark AZ91 (Al 8.5-9.5wt%, Zn in the prior art
0.45-0.9wt%, Mn 0.17-0.40wt%) etc., due in composition design and preparation technology, cause alloy grain
It is thick, uneven microstructure, and element aluminum and magnesium formation Mg17Al12Phase, and easily formed with net distribution in crystal boundary with magnesium matrix
Micro cell, accelerates the consumption of sacrificial anode material, while making the consumption of anode material uneven, influences making for sacrificial anode material
Use the life-span.
The content of the invention
It is an object of the invention to provide a kind of complex magnesium alloy sacrificial anode material containing Nd, existing magnesium alloy is solved sacrificial
Domestic animal anode material consumes uneven in corrosive environment, the problem of influenceing service life.
The present invention also provides the preparation method of above-mentioned magnesium alloy sacrificial anode material.
In order to realize the above object the technical solution adopted in the present invention is：
A kind of complex magnesium alloy sacrificial anode material containing Nd,：It is made up of the component of following mass percent：Zn 6.6%
~6.8%, Nd 0.2%~0.4%, Ca 0.3%~0.5%, Sb 0.4%~0.6%, surplus are Mg and inevitable
Impurity.
The complex magnesium alloy sacrificial anode material containing Nd of the present invention, alloy compositions are Mg-Zn-Nd-Ca-Sb, the alloy
Without Al, it is to avoid netted Mg17Al12The generation of phase, using Zn as main additional element, to ensure performance and control cost, Zn's
Addition elects 6.6~6.8wt% as；Add micro Nd (0.2~0.4wt%), Ca (0.3%~0.5%), Sb (0.4%~
0.6%) dystectic Mg, is generated12Nd、Mg2Ca、Mg13Sb2Phase, can be as effective forming core core, so that crystal grain thinning, changes
Kind tissue, improves the uniformity of tissue, and then magnesium-alloy anode material is consumed in corrosive environment uniformly.
Gained magnesium alloy sacrificial anode material not only consumes uniform in corrosive environment, and depletion rate is slow, use the longevity
The characteristics of ordering long, it is adaptable to the cathodic protection under soil, seawater, corrosion of water heater or similar environment, has broad application prospects.
The above-mentioned complex magnesium alloy sacrificial anode material containing Nd, is made up of the component of following mass percent：Zn
6.8%th, Nd 0.2%, Ca 0.5%, Sb 0.4%, surplus are Mg and inevitable impurity.
The impurity is Si, Fe, Cu and Ni element.
Gross mass content of the impurity in sacrificial anode material is less than 0.2%.
The raw material of the Nd is Mg-Nd intermediate alloys.
The raw material of the Ca is Mg-Ca intermediate alloys.
The preparation method of the above-mentioned complex magnesium alloy sacrificial anode material containing Nd, comprises the following steps：Take formula ratio
Mg, Zn, Sb, Mg-Nd intermediate alloy and Mg-Ca intermediate alloys, in CO2+SF6Under mixed gas protected, 680-700 DEG C is warming up to
After be incubated 4-6min, casting is produced.
It is preferred that, the preparation method of the above-mentioned complex magnesium alloy sacrificial anode material containing Nd comprises the following steps：Take and match somebody with somebody
Mg, Zn, Sb, Mg-Nd intermediate alloy and Mg-Ca intermediate alloys of side's amount, in CO2+SF6Under mixed gas protected, heated up after fusing
4-6min is incubated after to 680-700 DEG C, casting is produced.
Step 1) described in heating be induction furnace carry out.The heating uses corundum crucible.
Step 2) described in casting be to pour into magnesium liquid in steel die.
The above-mentioned complex magnesium alloy sacrificial anode material containing Nd, is with the middle of pure magnesium, pure zinc, star antimony and magnesium neodymium, magnesium calcium
Alloy is that raw material is carried out made from induction furnace melting and permanent mold casting.The preparation method technique is simple, and raw material sources are extensive.
Embodiment
The pure magnesium of raw material (Mg) used, fine aluminium (Al), pure zinc (Zn), magnesium neodymium intermediate alloy (Mg-Nd), magnesium calcium in embodiment
(Mg-Ca) intermediate alloy is commercially available prod (industrial goods).Wherein, the pure magnesium of raw material (Mg), pure zinc (Zn), the purity of star antimony (Sb)
For 99.8%, raw material magnesium neodymium (Mg-Nd), the purity of magnesium calcium (Mg-Ca) intermediate alloy are 99.5%.
Embodiment 1
The complex magnesium alloy sacrificial anode material containing Nd of the present embodiment, is made up of the component of following mass percent：Zn
6.6%th, Nd 0.4%, Ca 0.3%, Sb 0.6%, surplus are Mg and inevitable impurity.Wherein impurity element S i, Fe,
The gross mass content of Cu and Ni in sacrificial anode material is less than 0.2%.
The preparation method of the complex magnesium alloy sacrificial anode material of the present embodiment, comprises the following steps：Take alloy raw material pure
Magnesium (Mg), pure zinc (Zn), star antimony (Sb) and magnesium neodymium (Mg-Nd) intermediate alloy, magnesium calcium (Mg-Ca) intermediate alloy, in CO2+SF6It is mixed
Close under gas shield, be incubated 5min after being warming up to 680 DEG C in induction furnace using corundum crucible, pour into steel die, obtain magnesium
Alloy cast ingot, as described magnesium alloy sacrificial anode material.
Embodiment 2
The complex magnesium alloy sacrificial anode material containing Nd of the present embodiment, is made up of the component of following mass percent：Zn
6.7%th, Nd 0.3%, Ca 0.4%, Sb 0.5%, surplus are Mg and inevitable impurity；Wherein impurity element S i, Fe,
The gross mass content of Cu and Ni in anode material is less than 0.2%.
The preparation method of the complex magnesium alloy sacrificial anode material of the present embodiment, comprises the following steps：Take alloy raw material pure
Magnesium (Mg), pure zinc (Zn), star antimony (Sb) and magnesium neodymium (Mg-Nd) intermediate alloy, magnesium calcium (Mg-Ca) intermediate alloy, in CO2+SF6It is mixed
Close under gas shield, be incubated 5min after being warming up to 690 DEG C in induction furnace using corundum crucible, pour into steel die, obtain magnesium
Alloy cast ingot, as described magnesium alloy sacrificial anode material.
Embodiment 3
The complex magnesium alloy sacrificial anode material containing Nd of the present embodiment, is made up of the component of following mass percent：Zn
6.8%th, Nd 0.2%, Ca 0.5%, Sb 0.4%, surplus are Mg and inevitable impurity；Wherein impurity element S i, Fe,
The gross mass content of Cu and Ni in anode material is less than 0.2%.
The preparation method of the complex magnesium alloy sacrificial anode material of the present embodiment, comprises the following steps：Take alloy raw material pure
Magnesium (Mg), pure zinc (Zn), star antimony (Sb) and magnesium neodymium (Mg-Nd) intermediate alloy, magnesium calcium (Mg-Ca) intermediate alloy, in CO2+SF6It is mixed
Close under gas shield, be incubated 5min after being warming up to 700 DEG C in induction furnace using corundum crucible, pour into steel die, obtain magnesium
Alloy cast ingot, as described magnesium alloy sacrificial anode material.
Comparative example 1
The magnesium alloy sacrificial anode material of this comparative example is commercial Mg alloy AZ91.
Comparative example 2
The magnesium alloy sacrificial anode material of this comparative example is made up of the component of following mass percent：6.8% Zn,
0.5% Ca, 0.4% Sb, surplus are Mg.
The preparation method of the magnesium alloy sacrificial anode material of this comparative example, comprises the following steps：Take the pure magnesium of alloy raw material
(Mg), pure zinc (Zn), star antimony (Sb) and magnesium calcium (Mg-Ca) intermediate alloy, in CO2+SF6Under mixed gas protected, using corundum earthenware
Crucible is incubated 5min after 700 DEG C are warming up in induction furnace, pours into steel die, obtains magnesium alloy ingot, as described magnesium alloy
Sacrificial anode material.
Test example
Obtained magnesium alloy sacrificial anode material is detected in embodiment 1-3 and comparative example 1-2, as a result as shown in table 1.
Magnesium alloy sacrificial anode material performance test results in the embodiment of table 1 and comparative example
As it can be seen from table 1 the present invention gained complex magnesium alloy sacrificial anode material, OCP be -1.68~-
1.72V, current efficiency is 55%~60%, and material consumption is uniform in corrosive environment, has broad application prospects.
Claims (7)
1. a kind of complex magnesium alloy sacrificial anode material containing Nd, it is characterised in that：It is made up of the component of following mass percent：
Zn 6.6%~6.8%, Nd 0.2%~0.4%, Ca 0.3%~0.5%, Sb 0.4%~0.6%, surplus is for Mg and not
Evitable impurity.
2. the complex magnesium alloy sacrificial anode material according to claim 1 containing Nd, it is characterised in that：By following quality hundred
Divide the component composition of ratio：Zn 6.8%, Nd 0.2%, Ca 0.5%, Sb 0.4%, surplus are Mg and inevitable impurity.
3. the complex magnesium alloy sacrificial anode material according to claim 1 containing Nd, it is characterised in that：The impurity is
Si, Fe, Cu and Ni element.
4. the complex magnesium alloy sacrificial anode material according to claim 1 containing Nd, it is characterised in that：The impurity is sacrificial
Gross mass content in domestic animal anode material is less than 0.2%.
5. the preparation method of the complex magnesium alloy sacrificial anode material according to claim 1 containing Nd, it is characterised in that：Bag
Include following steps：Mg, Zn, Sb, Mg-Nd intermediate alloy and Mg-Ca intermediate alloys of formula ratio are taken, in CO2+SF6Mixed gas is protected
Under shield, it is warming up to after 680-700 DEG C and is incubated 4-6min, casting is produced.
6. the preparation method of the complex magnesium alloy sacrificial anode material according to claim 5 containing Nd, it is characterised in that：Step
It is rapid 1) described in heat up induction furnace carry out.
7. the preparation method of the complex magnesium alloy sacrificial anode material according to claim 5 containing Nd, it is characterised in that：Step
It is rapid 2) described in casting be to pour into magnesium liquid in steel die.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309376.4A CN107130249B (en) | 2017-05-04 | 2017-05-04 | A kind of complex magnesium alloy sacrificial anode material and preparation method thereof containing Nd |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309376.4A CN107130249B (en) | 2017-05-04 | 2017-05-04 | A kind of complex magnesium alloy sacrificial anode material and preparation method thereof containing Nd |
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| Publication Number | Publication Date |
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| CN107130249A true CN107130249A (en) | 2017-09-05 |
| CN107130249B CN107130249B (en) | 2019-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943852A (en) * | 2019-05-10 | 2019-06-28 | 光钰科技（临沂）有限公司 | A kind of preparation method delaying sacrificial magnesium alloy anode corrosion rate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734375A (en) * | 2016-04-12 | 2016-07-06 | 洛阳理工学院 | Sb-containing magnesium alloy sacrificial anode material |
| CN106609372A (en) * | 2016-10-21 | 2017-05-03 | 洛阳理工学院 | Magnesium alloy sacrificial anode containing Sm and Sb |
-
2017
- 2017-05-04 CN CN201710309376.4A patent/CN107130249B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734375A (en) * | 2016-04-12 | 2016-07-06 | 洛阳理工学院 | Sb-containing magnesium alloy sacrificial anode material |
| CN106609372A (en) * | 2016-10-21 | 2017-05-03 | 洛阳理工学院 | Magnesium alloy sacrificial anode containing Sm and Sb |
Non-Patent Citations (5)
| Title |
|---|
| JUNG-GU KIM ET AL.: "Development of high-driving potential and high-efficiency Mg-based sacrificial anodes for cathodic protection", 《JOURNAL OF MATERIALS SCIENCE LETTERS》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109943852A (en) * | 2019-05-10 | 2019-06-28 | 光钰科技（临沂）有限公司 | A kind of preparation method delaying sacrificial magnesium alloy anode corrosion rate |
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