Research Progress on Precipitation Hardening of Mg-Zn System Alloys
WANG Shimeng1, YANG Wenpeng1,2, CUI Hongbao1,2, GUO Xuefeng1,2, SUN Yao1
1 School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China; 2 Henan International Joint Research Laboratory for High-performance Light Metallic Materials and Numerical Simulations, Jiaozuo 454000, China
Abstract: Mg-Zn system alloys have become one of the most promising structural materials owing to the significantly precipitation strengthening. The impact of precipitation strengthening can be further improved by increasing the precipitation density and decreasing the particle spacing, which can be achieved by microalloying to control the precipitation behavior. Microalloyed elements include rare earth elements, alkaline earth elements and other elements. Rare earth elements can increase the density of precipitation, alkaline earth elements can refine the precipitation particles as well as increase precipitation density, other elements can increase the nucleation rate of precipitation and accelerate precipitate process. In pre-sent paper, the research progress of precipitation thermodynamics and precipitation sequence of Mg-Zn system alloys are reviewed, the effects of microalloyed elements on precipitation strengthening are summarized, and research direction of precipitation strengthening of Mg-Zn alloys is prospected.
王诗蒙, 杨文朋, 崔红保, 郭学锋, 孙尧. Mg-Zn系合金沉淀硬化研究进展[J]. 材料导报, 2020, 34(Z1): 312-315.
WANG Shimeng, YANG Wenpeng, CUI Hongbao, GUO Xuefeng, SUN Yao. Research Progress on Precipitation Hardening of Mg-Zn System Alloys. Materials Reports, 2020, 34(Z1): 312-315.
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