Stress-strain response in skin and core regions of die cast magnesium alloy AM60B determined from spherical microindentation

被引:0
|
作者
Weiler, JP [1 ]
Wood, JT [1 ]
Klassen, RJ [1 ]
Berkmortel, R [1 ]
Wang, G [1 ]
机构
[1] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B9, Canada
来源
MAGNESIUM TECHNOLOGY 2005 | 2005年
关键词
spherical indentation; magnesium die-casting; skin/core characteristics; stress-strain response; INDENTATION; DEFORMATION; BEHAVIOR; VICKERS;
D O I
暂无
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Spherical indentation testing is used to analyze the dependence of the mechanical properties upon local microstructure of the highpressure die cast magnesium alloy AM60B. Indentation testing is performed on two samples from the skin and the core regions of the die-casting. The difference in the indentation stress-strain flow curve between the skin and the core, and comparisons with results from uniaxial tensile testing are analyzed. It was found that results from the skin region compare well with the tensile stress-strain flow curve, while results from the core region produce a different strain hardening coefficient and a lower stress at each loading level. This study indicates that the skin region controls the flow properties of tensile samples cut from AM60B die-castings.
引用
收藏
页码:191 / 196
页数:6
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