跳到主要导航 跳到搜索 跳到主要内容

Environmental effect on fatigue properties of die-cast magnesium alloys

  • Xi'an Jiaotong University
  • Xi'an University of Technology

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

In order to study the environmental effect on fatigue properties of die-cast magnesium alloys, several fatigue tests were performed for AM50HP and AZ91HP in ambient air, vacuum, engine oil, deionized water and 3.5% NaCl solution. It is found that the S-N curves are steeper in corrosive environment and AM50HP shows a higher sensitivity to the action of 3.5% NaCl solution than AZ91HP. Both alloys do not have endurance limits in 3.5% NaCl solution, whereas endurance limits could be detected in ambient air, which are about 90MPa and 100MPa for AZ91HP and AM50HP respectively. It is also found that FCP rate is substantially increased in corrosion media: the presence of oxygen causes the production of oxide film on the fresh surfaces made during the cyclic loading and the oxide film would restrict the deformation of the matrix beneath the hard film and promote hydrogen embrittlement in the wet condition.

源语言英语
主期刊名Mechanical Engineering and Materials
主期刊副标题ICMEM 2012
548-553
页数6
DOI
出版状态已出版 - 2012
活动2012 International Conference on Mechanical Engineering and Materials, ICMEM 2012 - Melbourne, VIC, 澳大利亚
期限: 15 1月 201216 1月 2012

出版系列

姓名Applied Mechanics and Materials
152-154
ISSN(印刷版)1660-9336
ISSN(电子版)1662-7482

会议

会议2012 International Conference on Mechanical Engineering and Materials, ICMEM 2012
国家/地区澳大利亚
Melbourne, VIC
时期15/01/1216/01/12

学术指纹

探究 'Environmental effect on fatigue properties of die-cast magnesium alloys' 的科研主题。它们共同构成独一无二的指纹。

引用此