铸造2024，Vol.73Issue(4)：503-508,6.
Ca含量对时效态Mg-6.5Al-xCa-1Sn-0.3Sr镁合金显微组织和性能的影响
Effect of Ca Content on Microstructure and Properties of As-Aged Mg-6.5Al-xCa-1Sn-0.3Sr Magnesium Alloys
摘要
Abstract
The effect of Ca content on the microstructure and properties of as-aged Mg-6.5Al-xCa-1Sn-0.3Sr(x=1,1.5,2,2.5)magnesium alloys were investigated by XRD,SEM and properties tests.The results showed that as-aged alloys mainly consist of α-Mg and Al2Ca phases,the addition of Ca causes the Al2Ca phase in as-aged alloys to coarsen into a network.The tensile strength and elongation of as-aged alloys gradually decreased with the addition of Ca,when the Ca content was 1.0wt.%,the tensile properties of as-aged alloys were the best,but the hardness of as-aged alloys increased with the addition of Ca.At 175℃,70 MPa,the steady-creep rate of as-aged alloys were reduced with Ca addition.关键词
Mg-Al-Ca-Sn-Sr镁合金/显微组织/力学性能/蠕变性能Key words
Mg-Al-Ca-Sn-Sr magnesium alloy/microstructure/mechanical properties/creepproperties分类
矿业与冶金引用本文复制引用
热焱,邱克强..Ca含量对时效态Mg-6.5Al-xCa-1Sn-0.3Sr镁合金显微组织和性能的影响[J].铸造,2024,73(4):503-508,6.基金项目
辽宁省教育厅科研基金(LJKMZ20222117). （LJKMZ20222117）
