摘要
通过场发射扫描电镜、拉伸试验机,研究了均匀化热处理工艺对ZW61-x Al Ti C合金的显微组织、力学性能和断口形貌的影响。结果表明,铸态ZW61-x Al Ti C合金经均匀化热处理后,第二相的数量较铸态有明显增加。当Al Ti C中间合金含量为0.15%时,第二相的尺寸较小且分布均匀,具有最高的抗拉强度201.1 MPa和伸长率14.6%,比均匀化处理后ZW61合金的抗拉强度180.6 MPa和伸长率12.3%,分别提高了11.4%和18.7%。ZW61-x Al Ti C合金的断裂机理为准解理断裂。
Effect of homogenization treatment on the microstructure and mechanical properties of ZW61-x Al Ti C alloys was investigated by field emission scanning electron microscope（ FESEM） and electronic tensile testing machine. The results show that after homogenization treatment of ZW61-x Al Ti C alloys,the amount of second phases increases obviously compared with the as-cast alloys. When the content of Al Ti C master alloy is 0. 15%,the grain size of the second phases is smaller and distributes more uniformly,at the same time ZW61-0. 15 Al Ti C alloy has the highest ultimate tensile strength（ 201. 1 MPa） and elongation（ 14. 6%）,i. e.,compared with that of the as-homogenized ZW61 alloy,increased by 11. 4% and 18. 7%,respectively. The fracture mechanism of ZW61-x Al Ti C alloys is of quasi-cleavage fracture.
出处
《金属热处理》
CAS
CSCD
北大核心
2017年第10期32-37,共6页
Heat Treatment of Metals
基金
山东理工大学博士科研启动经费资助项目(4041-414014)
山东省淄博市科技发展计划(9001-111088)
关键词
镁合金
组织
力学性能
均匀化热处理
magnesium alloy
microstructure
mechanical property
homogenization treatment
