Superplastic elongation characteristic of fine grained magnesium alloy ZK60

被引：0

作者：

LEE Shyong ^{[1
]}

CHIANG Chihte ^{[1
]}

LEU Jyhshyan ^{[1
]}

CHEN Yunghung ^{[2
]}

机构：

[1] Department of Mechanical Engineering,National Central University

[2] Chun Shan Institute of Science and Technology

来源：

RareMetals | 2010年 / 29卷 / 04期

关键词：

magnesium alloy; superplastic elongation; rolling process; grain refining;

D O I：

暂无

中图分类号：

TG146.22 [];

学科分类号：

080502 ;

摘要：

This paper employs simple rolling process plus annealing to refine the grain size of magnesium alloy ZK60.This goal is effectively achieved,obtaining grains as fine as ～3.7 μm.Such a specimen shows an elongation of 642%,and its ultimate fracture surface exhibits intergranular separation and significant grain growth.Additionally,the effects of the specimen's geometry and tensile test axis with respect to the rolling direction on superplastic elongation is studied,which has not been done before.

引用

页码：421 / 425

页数：5

共 5 条

[1] Characteristics of the transition from grain-boundary sliding to solute drag creep in superplastic AA5083 [J].

McNelley, Terry R. ;

Oh-Ishi, Keiichiro ;

Zhilyaev, Alexander P. ;

Swaminathan, Srinivasan ;

Krajewski, Paul E. ;

Taleff, Eric M. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (01) :50-64

[2]

Forming-Limit Diagrams for Hot-Forming of AA5083 Aluminum Sheet: Continuously Cast Material[J] . Mary-Anne Kulas,Paul E. Krajewski,John R. Bradley,Eric M. Taleff.Journal of Materials Engineering and Performance . 2007 (3)

[3] Tribological issues during quick plastic forming [J].

Krajewski, PE ;

Morales, AT .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2004, 13 (06) :700-709

[4] Superplasticity in a magnesium alloy subjected to isothermal rolling [J].

Galiyev, A ;

Kaibyshev, R .

SCRIPTA MATERIALIA, 2004, 51 (02) :89-93

[5] Superplasticity in a ZK60 magnesium alloy at low temperatures [J].

Watanabe, H ;

Mukai, T ;

Higashi, K .

SCRIPTA MATERIALIA, 1999, 40 (04) :477-484

← 1 →