Effects of Sc and Mn on microstructures and mechanical properties of Mg-Gd alloy

被引：1

作者：

张小娟

易丹青

方西亚

王斌

肖来荣

机构：

[1] Changsha 410083

[2] China

[3] School of Materials Science and Engineering Central South University

来源：

TransactionsofNonferrousMetalsSocietyofChina | 2007年 / S1期

关键词：

Mg-Gd-Sc-Mn alloy; hot-extrusion; microstructures; mechanical properties;

D O I：

暂无

中图分类号：

TG115 [金属的分析试验（金属材料试验）];

学科分类号：

080502 ;

摘要：

Two alloys of Mg-12.4Gd and Mg-12.5Gd-0.8Sc-1.4Mn were prepared. Hot extrusion and T5 heat treatment were conducted,and then the mechanical properties of the two alloys were tested at room and high temperatures. The effects of Sc,Mn on the microstructures of Mg-12.4Gd were investigated by optical microscopy,scanning electron microscopy and transmission electron microscopy. The results demonstrate that after hot-extrusion the alloying with Sc,Mn can efficaciously refine the grains of Mg-12.4Gd alloy;and increase the elongation at room and high temperatures after T5 heat treatment. But the strength at high temperature is not obviously improved.

引用

页码：428 / 431

页数：4

共 5 条

[1] 耐热镁合金及其研究进展 [J].

张新明 ;

彭卓凯 ;

陈健美 ;

邓运来 .

中国有色金属学报, 2004, (09) :1443-1450

[2]

Hardening precipitation in a Mg–4Y–3RE alloy[J] . C. Antion,P. Donnadieu,F. Perrard,A. Deschamps,C. Tassin,A. Pisch.Acta Materialia . 2003 (18)

[3]

Effect of deformation temperature on Hall–Petch relationship registered for polycrystalline magnesium[J] . N. Ono,R. Nowak,S. Miura.Materials Letters . 2003 (1)

[4] Creep strength of magnesium-based alloys [J].

Kouichi Maruyama ;

Mayumi Suzuki ;

Hiroyuki Sato .

Metallurgical and Materials Transactions A, 2002, 33 (3) :875-882

[5]

Effect of al-loying on the properties of Mg-Gd alloys. Drits M E,Sviderskaya Z A,Rokhlin L L,et al. MetallovedenieI Termicheskaya Obrabotla Metallov . 1979

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