Effect of Micro-alloyed Ce on the Microstructure and Mechanical Properties of Mg-Gd-Zr Alloy

被引：0
|
作者：
Yang, Laidong [1 ,2 ,3 ]
Li, Quanan [1 ,3 ]
Chen, Xiaoya [1 ,3 ]
Yan, Lipeng [1 ,3 ]
机构：
[1] Henan Univ Sci & Technol, Sch Mat Sci & Engn, Luoyang, Peoples R China
[2] Longdong Univ, Qingyang, Peoples R China
[3] Prov & Ministerial Coconstruct Collaborat Innovat, Luoyang, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2023年 / 32卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Ce element; Mg-Gd-based alloy; micro-alloying; microstructure and mechanical properties; GRAIN-REFINEMENT; STRENGTH; PRECIPITATION; EVOLUTION; BEHAVIOR; PHASES; CA;
D O I：
10.1007/s11665-022-07373-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of the microalloying element Ce on the microstructure and tensile mechanical properties of a Mg-10Gd-0.5Zr alloy was investigated in this work. The results indicated that adding a small amount of Ce to the Mg-10Gd-0.5Zr alloy refined the grain size and formed the Mg-5(Gd, Ce) eutectic phase. In addition, micro-alloyed Ce promoted the age-hardening response, shortened the peak-aging time, improved the density of the beta' strengthening phase, and enhanced the aspect ratio of the phase. Adding 0.6 wt.% Ce to the alloy improved the yield strength and ultimate tensile strength from 141 to 182 MPa and 210 to 275 MPa, respectively. The improved mechanical properties were related to grain refinement, a high-density beta' strengthening phase and a larger aspect ratio of the strengthening phase.
引用
收藏
页码：3968 / 3973
页数：6
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