Institutional Repository of Coll Mat Sci & Engn
Effect of isothermal heat treatment on semi-solid microstructure of ADC2-0.4Mg-0.9Cu alloys | |
Huang, Xiao-Feng1,2; Zhang, Sheng1; Yang, Fan1; Zhang, Zhan-Yu1; Shang, Wen-Tao1 | |
2022-06-28 | |
发表期刊 | Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals |
ISSN | 1004-0609 |
卷号 | 32期号:6页码:1561-1570 |
摘要 | The effects of secondary heating temperature and holding time on microstructure evolution of semi-solid ADC2-0.4Mg-0.9Cu aluminum alloy were studied by using semi-solid isothermal heat treatment process. The results show that the amorphous dendritic structure of the alloy transforms into spherical and near-spherical non-dendritic structure by isothermal heat treatment. It is beneficial to increase the holding temperature or prolong the holding time properly for the separation and spheroidization of ADC2-0.4Mg-0.9Cu alloy. However, when the holding temperature exceeds 610 or the holding time exceeds 15 min, the non-dendritic tissues are prone to coarsening, which is caused by the combined growth mechanism and Ostwald maturation mechanism. The semi-solid microstructure evolution of ADC2-0.4Mg-0.9Cu aluminum alloy undergoes three processes: dendrite coarsening, separation, spheroidization and finally ripening coarsening. The average grain size, solid fraction and shape factor of non-dendrites are 50.162 μm, 42.75% and 1.671, respectively, under the optimal isothermal treatment at 610 for 15 min. © 2022, China Science Publishing & Media Ltd. All right reserved. |
关键词 | Coarsening Copper alloys Heat treatment Isotherms Ostwald ripening ADC2-0.4mg-0.9cu aluminum alloy Coarsenings Evolution mechanism Holding temperatures Holding time Isothermal heat treatments Microstructure evolutions Non-dendritic structure Semi-solids Spheroidization |
DOI | 10.11817/j.ysxb.1004.0609.2022-36767 |
收录类别 | EI |
语种 | 中文 |
出版者 | Central South University of Technology |
EI入藏号 | 20223512639438 |
EI主题词 | Aluminum alloys |
EI分类号 | 537.1 Heat Treatment Processes ; 541.2 Aluminum Alloys ; 544.2 Copper Alloys ; 951 Materials Science |
引用统计 | 无
|
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/159750 |
专题 | 材料科学与工程学院 理学院 |
作者单位 | 1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Nonferrous Metal Alloys and Processing, Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China |
第一作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Huang, Xiao-Feng,Zhang, Sheng,Yang, Fan,et al. Effect of isothermal heat treatment on semi-solid microstructure of ADC2-0.4Mg-0.9Cu alloys[J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,2022,32(6):1561-1570. |
APA | Huang, Xiao-Feng,Zhang, Sheng,Yang, Fan,Zhang, Zhan-Yu,&Shang, Wen-Tao.(2022).Effect of isothermal heat treatment on semi-solid microstructure of ADC2-0.4Mg-0.9Cu alloys.Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,32(6),1561-1570. |
MLA | Huang, Xiao-Feng,et al."Effect of isothermal heat treatment on semi-solid microstructure of ADC2-0.4Mg-0.9Cu alloys".Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals 32.6(2022):1561-1570. |
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