预应变和热处理对AZ31镁合金形变行为的影响(英文)
发布时间:2019-04-28 21:05
【摘要】:对挤压态AZ31镁合金进行预压缩和热处理,研究预压缩和热处理对其形变行为的影响。结果表明:在低温下退火(170℃退火4 h),试样经过退火处理或未经退火处理的几乎具有相等的屈服强度(~148 MPa),这是由于它们的显微组织几乎没有变化。然而在相同退火条件下,经预压缩并退火的试样的屈服强度(~225 MPa)高于只有预压缩试样的屈服强度(~200 MPa)。由于溶质原子在孪晶界偏析引起强化,前者显示出退火硬化效应。预压缩试样在400℃退火1h后,其伸长率(~28%)高于预压缩试样的伸长率(~15%),但其屈服强度(~125 MPa)低于预压缩试样的屈服强度(~200 MPa)。
[Abstract]:The effects of pre-compression and heat treatment on the deformation behavior of extruded AZ31 magnesium alloy were studied. The results show that the samples annealed at low temperature (170 鈩,
本文编号:2467967
[Abstract]:The effects of pre-compression and heat treatment on the deformation behavior of extruded AZ31 magnesium alloy were studied. The results show that the samples annealed at low temperature (170 鈩,
本文编号:2467967
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