CN108754367A - A kind of atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods - Google Patents
A kind of atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods Download PDFInfo
- Publication number
- CN108754367A CN108754367A CN201810740435.8A CN201810740435A CN108754367A CN 108754367 A CN108754367 A CN 108754367A CN 201810740435 A CN201810740435 A CN 201810740435A CN 108754367 A CN108754367 A CN 108754367A
- Authority
- CN
- China
- Prior art keywords
- deformation
- magnesium alloy
- elementide
- swaging
- strengthen
- 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.)
- Pending
Links
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
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
-
- 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
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
Abstract
The present invention relates to a kind of atom segregations and elementide to strengthen Mg-Gd-Y-Zr magnesium alloy methods.The quality of magnesium alloy percent composition is：Mg-7 ~ 9Gd-2.5 ~ 3.5Y-0.2 ~ 0.45Zr swages alloy bar material at 0 ~ 200 DEG C, and control pass deformation is 1 ~ 10%, and total deformation is 10 ~ 60%, and it is 0.5 ~ 1.5m that rotary swaging process, which uses oil lubrication, lubricant flowing velocity,3/ h, control charging rate are 1 ~ 10mm/min, change feedstock direction after every time deformation, crystal boundary Gd, the Y element concentration after deformation of swaging are transgranular 1.2 ~ 2.5 times, and elementide size is 3 ~ 15nm, gained magnesium alloy yield strength >=520MPa, tensile strength >=600MPa, elongation after fracture >=5%.
Description
Technical field
The present invention relates to high-performance magnesium-alloy field, more particularly to a kind of magnesium alloy intensifying method.
Background technology
Magnesium alloy has many advantages, such as low-density, high specific strength, high specific stiffness, high-damping, as light structures material of new generation
Material, excellent loss of weight characteristic are of great significance to fields such as aerospace, communications and transportation.However existing magnesium alloy is generally strong
It spends relatively low, it is difficult to meet the needs of high-grade, precision and advanced field is to high-performance magnesium-alloy.Existing magnesium alloy, which strengthens means, solution strengthening, thin
Crystalline substance reinforcing, second-phase strength and dispersion-strengtherning, but existing magnesium alloy strengthens means and is difficult to magnesium alloy strength being promoted to 600MPa.
Thus explore novel magnesium alloy strengthening mechanism, Development of Novel magnesium alloy reinforcement technique prepares high-strength, even super high-strength magnesium alloy
It is of great significance.
Invention content
The invention reside in a kind of atom segregations of offer and elementide to strengthen Mg-Gd-Y-Zr magnesium alloy methods.The magnesium closes
Golden amount percent composition is：Mg-7 ~ 9Gd-2.5 ~ 3.5Y-0.2 ~ 0.45Zr, to Mg-Gd-Y-Zr alloy bar materials at 0 ~ 200 DEG C
Deformation of swaging is carried out, control pass deformation is 1 ~ 10%, and total deformation is 10 ~ 60%, and rotary swaging process uses oil lubrication, lubricant
Flowing velocity is 0.5 ~ 1.5m3/ h, control charging rate are 1 ~ 10mm/min, change feedstock direction after every time deformation.It utilizes
The dislocation of deformation generation of swaging and deformation heat make Gd, Y element in crystal boundary generation segregation and in transgranular formation nanometer scale atom
Cluster, crystal boundary Gd, Y element concentration are transgranular 1.2 ~ 2.5 times, and elementide size is 3 ~ 15nm, and the surrender of gained magnesium alloy is strong
Degree >=520MPa, tensile strength >=600MPa, elongation after fracture >=5%.
The deformation of swaging, control pass deformation are 1 ~ 5%.
The deformation of swaging, control total deformation are 10 ~ 30%.
The deformation of swaging, control lubricant flowing velocity are 1 ~ 1.5m3/h.
The deformation of swaging, control charging rate are 8 ~ 10mm/min.
Advantages of the present invention has：
1. deformation of swaging can generate high rate of straining, induces a large amount of dislocations and start, dislocation can be rare earth in the accumulation of crystal boundary
Elements diffusion provides channel.It is to realize the key factor of rare earth element segregation to select mode of texturing of swaging.
2. the temperature of material determines the diffusion velocity of rare earth element in the magnesium alloy in deformation process, dilute when the temperature is excessively high
Earth elements diffusion is too fast, easily lead to rare earth element enrichment, forms blocky Nd-rich phase in grain boundaries, and the formation of Nd-rich phase can be tight
The mechanical property of magnesium alloy is reduced again.When temperature is too low, rare earth element diffusion velocity is excessively slow, it is difficult to form crystal boundary segregation and transgranular
Cluster.The accessible temperature of deformation process of swaging material is by the deformation heat generated in material initial temperature, deformation process and change
Temperature drop caused by lubricant, mold heat conduction etc. is related during shape.A large number of experiments exploration shows：It swages at 0 ~ 200 DEG C deformation, control
Total deformation processed is 10 ~ 60%, and lubricant flowing velocity is 0.5 ~ 1.5m3/ h could realize rare earth element in the effective inclined of crystal boundary
Gather and form transgranular cluster, and does not generate massive phase.
Specific implementation mode
Embodiment 1
Quality of magnesium alloy percent composition used is Mg-8Gd-3Y-0.4Zr, and Mg-Gd-Y-Zr alloy bar materials are carried out in room temperature
It swages deformation, control pass deformation is 5%, 5%, 5%, total deformation 14%, and rotary swaging process uses oil lubrication, lubricant flowing
Speed is 1.5m3/ h, control charging rate are 10mm/min, change feedstock direction after every time deformation.
Alloy crystal boundary Gd, the Y element concentration after deformation of swaging are transgranular 1.8 times, and elementide size is 3 ~ 7nm.Gained
Alloy yield strength is 540MPa, tensile strength 610MPa, elongation after fracture 6%.
Embodiment 2
Quality of magnesium alloy percent composition used is Mg-8Gd-3Y-0.4Zr, and Mg-Gd-Y-Zr alloy bar materials are carried out in room temperature
It swages deformation, control pass deformation is 3%, 5%, 5%, 3%, and total deformation 16%, rotary swaging process uses oil lubrication, lubricant
Flowing velocity is 1m3/ h, control charging rate are 10mm/min, change feedstock direction after every time deformation.
Alloy crystal boundary Gd, the Y element concentration after deformation of swaging are transgranular 2 times, and elementide size is 3 ~ 10nm.Gained closes
Golden yield strength is 530MPa, tensile strength 647MPa, elongation after fracture 5%.
Embodiment 3
Quality of magnesium alloy percent composition used is Mg-8Gd-3Y-0.4Zr, and Mg-Gd-Y-Zr alloy bar materials are carried out in room temperature
It swages deformation, control pass deformation is 5%, 5%, 5%, 5%, 5%, total deformation 23%, and rotary swaging process uses oil lubrication, lubrication
Agent flowing velocity is 1.5m3/ h, control charging rate are 8mm/min, change feedstock direction after every time deformation.
Alloy crystal boundary Gd, the Y element concentration after deformation of swaging are transgranular 2 times, and elementide size is 7 ~ 13nm.Gained closes
Golden yield strength is 525MPa, tensile strength 611MPa, elongation after fracture 7%.
Claims (5)
1. a kind of atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods, quality of magnesium alloy percent composition is
Mg-7 ~ 9Gd-2.5 ~ 3.5Y-0.2 ~ 0.45Zr, it is characterised in that include the following steps：First to Mg-Gd-Y-Zr alloy bar materials 0
~ 200 DEG C carry out deformation of swaging, and control pass deformation is 1 ~ 10%, and total deformation is 10 ~ 60%, and rotary swaging process uses oil lubrication,
Lubricant flowing velocity is 0.5 ~ 1.5m3/ h, control charging rate are 1 ~ 10mm/min, change charging side after every time deformation
To.
2. atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods according to claim 1, it is characterised in that：
The deformation of swaging, control pass deformation are 1 ~ 5%.
3. atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods according to claim 1, it is characterised in that：
The deformation of swaging, control total deformation are 10 ~ 30%.
4. atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods according to claim 1, it is characterised in that：
The deformation of swaging, control lubricant flowing velocity are 1 ~ 1.5m3/h。
5. atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods according to claim 1, it is characterised in that：
The deformation of swaging, control charging rate are 8 ~ 10mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740435.8A CN108754367A (en) | 2018-07-07 | 2018-07-07 | A kind of atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740435.8A CN108754367A (en) | 2018-07-07 | 2018-07-07 | A kind of atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108754367A true CN108754367A (en) | 2018-11-06 |
Family
ID=63972854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810740435.8A Pending CN108754367A (en) | 2018-07-07 | 2018-07-07 | A kind of atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108754367A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004353067A (en) * | 2003-05-30 | 2004-12-16 | Sumitomo Denko Steel Wire Kk | Magnesium-based alloy formed body manufacturing method |
| CN101905251A (en) * | 2010-07-07 | 2010-12-08 | 中南大学 | Extrusion deforming process of high-strength large-diameter magnesium alloy rod |
| CN101914737A (en) * | 2010-07-07 | 2010-12-15 | 中南大学 | Heat treatment process of large-size high-tensile magnesium alloy extrusion |
| CN102828134A (en) * | 2012-09-20 | 2012-12-19 | 中南大学 | Three-level aging heat treatment process for nanometer magnesium alloy |
| CN106756680A (en) * | 2016-11-23 | 2017-05-31 | 西北有色金属研究院 | A kind of processing method of high-strength magnesium alloy small-sized bar |
-
2018
- 2018-07-07 CN CN201810740435.8A patent/CN108754367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004353067A (en) * | 2003-05-30 | 2004-12-16 | Sumitomo Denko Steel Wire Kk | Magnesium-based alloy formed body manufacturing method |
| CN101905251A (en) * | 2010-07-07 | 2010-12-08 | 中南大学 | Extrusion deforming process of high-strength large-diameter magnesium alloy rod |
| CN101914737A (en) * | 2010-07-07 | 2010-12-15 | 中南大学 | Heat treatment process of large-size high-tensile magnesium alloy extrusion |
| CN102828134A (en) * | 2012-09-20 | 2012-12-19 | 中南大学 | Three-level aging heat treatment process for nanometer magnesium alloy |
| CN106756680A (en) * | 2016-11-23 | 2017-05-31 | 西北有色金属研究院 | A kind of processing method of high-strength magnesium alloy small-sized bar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108080644B (en) | Powder metallurgy preparation method of high-strength toughened metal-based composite material | |
| Ye et al. | Microstructure and strengthening mechanism of ultrastrong and ductile Ti-xSn alloy processed by powder metallurgy | |
| Deng et al. | Recent research on the deformation behavior of particle reinforced magnesium matrix composite: a review | |
| Hagihara et al. | Plastic deformation behavior of Mg97Zn1Y2 extruded alloys | |
| CN109628812B (en) | Low-alloy high-performance superplastic magnesium alloy and preparation method thereof | |
| CN107532250A (en) | Strain inducing ageing strengthening in dilute magnesium alloy plate | |
| CN106756618B (en) | 100mm thickness Q420GJC/D controlled rolling state high-strength structure steel plates | |
| KR20070035042A (en) | Method of manufacturing titanium alloy wire with improved properties | |
| CN106086559B (en) | A kind of long-periodic structure mutually enhances Mg-RE-Ni magnesium alloy semi-solid state blanks and preparation method thereof | |
| CN109266930B (en) | A kind of high tough wrought magnesium alloy and preparation method thereof | |
| CN106521320B (en) | Special thickness Q460GJC/D controlled rolling state high-strength structure steel plates | |
| CN106148660A (en) | A kind of preparation method of deformed grains/partial, re-crystallization tissue twinning-induced plasticity steel | |
| CN102888531A (en) | Alpha+beta type titanium alloy wire for 960MPa intensity level electron beam fused deposition rapid-forming members | |
| CN106636746B (en) | A kind of high-strength high-elongation ratio high-temperature titanium alloy and its preparation process | |
| CN104726746A (en) | High-strength metastable beta-type titanium alloy bar and production method thereof | |
| CN107532249A (en) | Formable magnesium-based wrought alloy | |
| Zhang et al. | High strength tungsten wire reinforced Zr-based bulk metallic glass matrix composites prepared by continuous infiltration process | |
| CN106521274A (en) | High-strength Mg-Li-Al-Y-Ca alloy and preparation method thereof | |
| CN106929764A (en) | A kind of nanocrystalline/bimodal block materials of Ultra-fine Grained two-phase and preparation method | |
| Xiang et al. | Microstructure characteristics of ECAP-processed (TiB+ La2O3)/Ti-6Al-4V composites | |
| CN105603169B (en) | The short route manufacture method of large-scale 30CrNi2MoV steel parts | |
| CN107236887A (en) | A kind of Wrought magnesium alloys in high intensity, high plasticity material and preparation method | |
| Zhou et al. | High-temperature tensile and creep properties of TiB-reinforced Ti6Al4V composite fabricated by laser powder bed fusion | |
| CN108754367A (en) | A kind of atom segregation and elementide strengthen Mg-Gd-Y-Zr magnesium alloy methods | |
| CN108715965A (en) | A kind of atom segregation and elementide strengthen VW93M magnesium alloy methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20210702 |