Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd Alloy
The microstructure and mechanical properties of Mg-3Al-2Ca-2Nd alloy as-cast and isothermal treated were studied by using XＲD，OM，SEM，EDS and universal tensile testing machine. The experimental results indicate that the microstructure of Mg-3Al-2Ca-2Nd alloy isothermal treated at 420℃ changes sligh...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2018-02-01
|
| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1477 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849225382103875584 |
|---|---|
| author | WANG Kai-feng FENG Yi-cheng ZHANG Jing ZHAO Si-cong WANG Li-ping GUO Er-jun |
| author_facet | WANG Kai-feng FENG Yi-cheng ZHANG Jing ZHAO Si-cong WANG Li-ping GUO Er-jun |
| author_sort | WANG Kai-feng |
| collection | DOAJ |
| description | The microstructure and mechanical properties of Mg-3Al-2Ca-2Nd alloy as-cast and isothermal
treated were studied by using XＲD，OM，SEM，EDS and universal tensile testing machine. The experimental
results indicate that the microstructure of Mg-3Al-2Ca-2Nd alloy isothermal treated at 420℃ changes slightly
compared to that of as-cast alloy. With the increasing of isothermal treated temperature，the dendritic structure in
as-cast Mg-3Al-2Ca-2Nd alloy disappears，equiaxed grains appear，and the size of grain increases in isothermal
treated Mg-3Al-2Ca-2Nd alloy. The Al11Nd3 phases decompose and the Al2Nd phases with high thermal stability are
produced，and the Al is dissolved into α-Mg in the process of isothermal treatment. The flake Al-Ca phases are
changed into particle phases in the process of isothermal treatment. With the increasing of isothermal treated
temperature，the hardness，tensile strength and elongation of Mg-3Al-2Ca-2Nd alloy increase first and then
decrease，and the maximum value of hardness，tensile strength and elongation of Mg-3Al-2Ca-2Nd alloy treated at
480℃ are 66. 3 HV，144. 5 MPa and 2. 7%，respectively.
|
| format | Article |
| id | doaj-art-1925a512ac0f439ab44c168737070dc6 |
| institution | Kabale University |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2018-02-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-1925a512ac0f439ab44c168737070dc62025-08-25T01:49:23ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832018-02-012301354010.15938/j.jhust.2018.01.007Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd AlloyWANG Kai-feng0FENG Yi-cheng1ZHANG Jing2ZHAO Si-cong3WANG Li-ping4GUO Er-jun5AECC Harbin Dong’an Engine Co. Ltd. ，Harbin 150066，ChinaSchool of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaSchool of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaSchool of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaSchool of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaSchool of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaThe microstructure and mechanical properties of Mg-3Al-2Ca-2Nd alloy as-cast and isothermal treated were studied by using XＲD，OM，SEM，EDS and universal tensile testing machine. The experimental results indicate that the microstructure of Mg-3Al-2Ca-2Nd alloy isothermal treated at 420℃ changes slightly compared to that of as-cast alloy. With the increasing of isothermal treated temperature，the dendritic structure in as-cast Mg-3Al-2Ca-2Nd alloy disappears，equiaxed grains appear，and the size of grain increases in isothermal treated Mg-3Al-2Ca-2Nd alloy. The Al11Nd3 phases decompose and the Al2Nd phases with high thermal stability are produced，and the Al is dissolved into α-Mg in the process of isothermal treatment. The flake Al-Ca phases are changed into particle phases in the process of isothermal treatment. With the increasing of isothermal treated temperature，the hardness，tensile strength and elongation of Mg-3Al-2Ca-2Nd alloy increase first and then decrease，and the maximum value of hardness，tensile strength and elongation of Mg-3Al-2Ca-2Nd alloy treated at 480℃ are 66. 3 HV，144. 5 MPa and 2. 7%，respectively. https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1477magnesium alloyisothermal treatmentmicrostructuremechanical property |
| spellingShingle | WANG Kai-feng FENG Yi-cheng ZHANG Jing ZHAO Si-cong WANG Li-ping GUO Er-jun Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd Alloy Journal of Harbin University of Science and Technology magnesium alloy isothermal treatment microstructure mechanical property |
| title | Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd Alloy |
| title_full | Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd Alloy |
| title_fullStr | Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd Alloy |
| title_full_unstemmed | Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd Alloy |
| title_short | Effect of Isothermal Treatment on Microstructure and Properties of Mg-3Al-2Ca-2Nd Alloy |
| title_sort | effect of isothermal treatment on microstructure and properties of mg 3al 2ca 2nd alloy |
| topic | magnesium alloy isothermal treatment microstructure mechanical property |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1477 |
| work_keys_str_mv | AT wangkaifeng effectofisothermaltreatmentonmicrostructureandpropertiesofmg3al2ca2ndalloy AT fengyicheng effectofisothermaltreatmentonmicrostructureandpropertiesofmg3al2ca2ndalloy AT zhangjing effectofisothermaltreatmentonmicrostructureandpropertiesofmg3al2ca2ndalloy AT zhaosicong effectofisothermaltreatmentonmicrostructureandpropertiesofmg3al2ca2ndalloy AT wangliping effectofisothermaltreatmentonmicrostructureandpropertiesofmg3al2ca2ndalloy AT guoerjun effectofisothermaltreatmentonmicrostructureandpropertiesofmg3al2ca2ndalloy |