Improvement in the age-hardening response of Mg-7Sn alloy by compressive stress-assisted aging
Improvement in the age-hardening response of Mg-7Sn alloy by compressive stress-assisted aging
复制标题
通过压应力辅助时效改善 Mg-7Sn 合金的时效硬化响应
DOI：
10.1016/j.jmrt.2023.01.189
复制
发表时间：
2023-02
期刊：
影响因子：
--
通讯作者：
Daqing Fang
中科院分区：
文献类型：
--
作者：
Jing Jiang;Lin Tong;Zuocheng Xu;Guangli Bi;Chi Cao;Yu;ong Li;Tijun Chen;Wei Fu;Daqing Fang
应力时效是改善镁合金时效硬化性能的有效方法。本文采用应力时效的方法来改善Mg-7Sn合金时效硬化性能差的问题。研究了Mg-7Sn合金在外加压应力作用下的时效硬化行为、组织演变和力学性能。应力时效显著改变了Mg 2Sn相的尺寸、形貌、数量和分布。在应力时效过程中，微/纳米级Mg 2Sn颗粒在应力时效合金的基面上析出，其体积分数较等温时效合金显著增加。有趣的是，少量的Mg 2Sn相沉淀在非基面上。应力时效显著缩短了峰值时效时间（96 h），提高了峰值时效硬度（68.4 HV）。拉伸试验结果表明，在80 MPa应力峰时效时，合金的抗拉强度最高（σ 0. 2 = 140 MPa，σB= 217 MPa），这主要归因于Mg 2Sn相的析出强化。
Stress aging is an effective method to improve age-hardening behavior of Mg alloys. In this paper, the stress aging was applied to improve poor age-hardening response of Mg–7Sn alloy. The age-hardening behavior, microstructure evolution and mechanical properties of Mg–7Sn alloy with an external compressive stress were investigated. The stress aging significantly altered the size, morphology, amounts and distribution of Mg2Sn phase. During the stress aging, micro/nano scale Mg2Sn particles precipitated on the basal plane of the stress aged alloy and their volume fraction remarkably increased as compared with the isothermal aging alloy. Interestingly, small amounts of Mg2Sn phases precipitated on the non-basal planes. The stress aging significantly reduced the peak aging time (96 h) and increased peak aging hardness (68.4 HV). The tensile tests showed that the stress peak-aged alloy at 80 MPa exhibited the highest tensile strengths (σ0.2= 140 MPa and σb= 217 MPa), which were mainly attributed to the precipitation strengthening of Mg2Sn phase.
登录
查看更多内容
累积滚压复合双相Mg-9Li-3Al-1Zn合金的增强电磁干扰屏蔽
DOI：
10.1007/s40195-020-01017-z
发表时间：
2020-03
期刊：
Acta Metallurgica Sinica (English Letters)
影响因子：
--
作者：
Jiahao Wang;Lin Xu;Ruizhi Wu;Jing Feng;Jinghuai Zhang;Legan Hou;Milin Zhang
通讯作者：
Milin Zhang
弹性应力时效镁锌合金的增强时效硬化响应和析出演化
影响因子：
6.2
作者：
Yongjian Wang;Liping Zhong;Yuchen Dou;Zhenyi Huang
通讯作者：
Zhenyi Huang
影响因子：
15.6
作者：
RUSSELL, KC
通讯作者：
RUSSELL, KC
通过丰富的棱柱板条状析出物同时提高 Mg?Sn 合金的强度和韧性
DOI：
10.1016/j.msea.2021.141087
发表时间：
2021
影响因子：
6.4
作者：
Wan Y. J.;Zeng Y.;Zeng Q.;Song B.;Huang X. F.;Qian X. Y.;Jiang B.
通讯作者：
Jiang B.
影响因子：
1.6
作者：
F. Naghdi;R. Mahmudi;J. Kang;H.S. Kim
通讯作者：
F. Naghdi;R. Mahmudi;J. Kang;H.S. Kim