Effect of Heat Treatment on Microstructure and Mechanical Properties of ZM6 Alloy Prepared by Solid Recycling Process

被引：14

作者：

Wen, Lihua ^{[1
]}

Ji, Zesheng ^{[1
]}

Li, Xiaoliang ^{[1
]}

Xin, Mingde ^{[1
]}

机构：

[1] Harbin Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150040, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2010年 / 19卷 / 01期

基金：

美国国家科学基金会;

关键词：

Hot extrusion; Mechanical properties; Microstructure; ZM6; alloy; HOT EXTRUSION; MAGNESIUM;

D O I：

10.1007/s11665-009-9360-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZM6 magnesium alloy was prepared by solid recycling process. Effect of heat treatment on microstructure and mechanical properties of the alloy was investigated. Cold pressing was employed to prepare extrusion billets of ZM6 chips, then the billets were hot extruded at 773 K with an extrusion ratio of 25:1. During hot extrusion, the grains refined and the particles were broken. The peak-aging materials showed fine plate-shaped beta' precipitates. The ultimate tensile strength and elongation to failure of as-extruded rods was 232.2 MPa and 23%, respectively. After T5 and T6 heat-treatment, obvious improvement of the tensile strength was obtained because of dispersive particles or fine precipitates. The morphology of the fracture surfaces was examined by employing scanning electron microscope.

引用

页码：107 / 111

页数：5

共 14 条

[1] Influence of lanthanum on the microstructure, mechanical property and corrosion resistance of magnesium alloy [J].

Fan, Yu ;

Wu, Guohua ;

Gao, Hongtao ;

Li, Guanqun ;

Zhai, Chunquan .

JOURNAL OF MATERIALS SCIENCE, 2006, 41 (17) :5409-5416

[2] Recycling of magnesium alloy AZ91 scrap by a B2O3-containing flux [J].

Gao, HT ;

Wu, GH ;

Ding, WJ ;

Zhu, YP .

JOURNAL OF MATERIALS SCIENCE, 2004, 39 (21) :6449-6456

[3] Microstructure and strengthening mechanism of high strength Mg-10Gd-2Y-0.5Zr alloy [J].

He, S. M. ;

Zeng, X. Q. ;

Peng, L. M. ;

Gao, X. ;

Nie, J. F. ;

Ding, W. J. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 427 (1-2) :316-323

[4] Comparison of the microstructure and mechanical properties of a ZK60 alloy with and without 1.3 wt.% gadolinium addition [J].

He, S. M. ;

Peng, L. M. ;

Zeng, X. Q. ;

Ding, W. J. ;

Zhu, Y. P. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 433 (1-2) :175-181

[5] An investigation on the hot extrusion process of magnesium alloy sheet [J].

Hsiang, SH ;

Kuo, JL .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 140 :6-12

[6] Determination of active slip/twinning modes in AZ31 Mg alloy near room temperature [J].

Li, Hualong ;

Hsu, Emilie ;

Szpunar, Jerzy ;

Verma, Ravi ;

Carter, Jon. T. .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2007, 16 (03) :321-326

[7] Tensile properties of the ZK60 magnesium alloy produced by hot extrusion of machined chip [J].

Nakanishi, M ;

Mabuchi, M ;

Saito, N ;

Nakamura, M ;

Higashi, K .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1998, 17 (23) :2003-2005

[8] Atom probe characterization of plate-like precipitates in a Mg-RE-Zn-Zr casting alloy [J].

Ping, DH ;

Hono, K ;

Nie, JF .

SCRIPTA MATERIALIA, 2003, 48 (08) :1017-1022

[9] Quasicrystal strengthened Mg-Zn-Y alloys by extrusion [J].

Singh, A ;

Nakamura, M ;

Wantanabe, M ;

Kato, A ;

Tsai, AP .

SCRIPTA MATERIALIA, 2003, 49 (05) :417-422

[10] Recycling the magnesium alloy AZ91D in solid state [J].

Wang, Jian-Yih ;

Lin, Ying-Nan ;

Chang, Tien-Chan ;

Lee, Shyong .

MATERIALS TRANSACTIONS, 2006, 47 (04) :1047-1051

← 1 2 →