Influence of aging on twin boundary strengthening in magnesium alloys

Jianwei Teng; Xiaojuan Gong; Yunping Li; Yan Nie

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Influence of aging on twin boundary strengthening in magnesium alloys

机译：时效对镁合金双边界强化的影响

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In order to investigate the effect of aging on twin boundary (TB) strengthening in magnesium alloys, the cyclic compressions along two orthogonal directions of samples with and without intermediate aging are carried out. The results show that the grains in all Mg alloys AZ31, AZ61 and AZ91 are significantly refined by twin boundaries (TBs). The TB strengthening is strongly dependent on both alloying element content and aging. Although grain refinement by TB formation occurs in AZ31, it exhibits slight strengthening effect even after aging. In contrast, significant TB strengthening after aging is observed in Mg alloys AZ61 and AZ91 with high contents of alloying elements.

机译：为了研究时效对镁合金中双晶界（TB）强化的影响，在有和没有中间时效的情况下，沿两个正交方向进行了循环压缩。结果表明，所有镁合金AZ31，AZ61和AZ91中的晶粒均通过孪晶界（TB）显着细化。 TB的强化在很大程度上取决于合金元素含量和时效。尽管在AZ31中通过TB形成使晶粒细化，但即使在时效后也显示出轻微的强化作用。相反，在具有高合金元素含量的镁合金AZ61和AZ91中，观察到了老化后的大量TB强化。

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来源
《Materials Science and Engineering》 |2018年第7期|137-143|共7页
作者
Jianwei Teng; Xiaojuan Gong; Yunping Li; Yan Nie;
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作者单位

School of Materials Science and Engineering, Central South University;

State Key Lab for Powder Metallurgy, Central South University;

State Key Lab for Powder Metallurgy, Central South University;

Yuanmeng Precision Technology (Shenzhen) Institute;

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原文格式 PDF
正文语种 eng
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关键词
Magnesium alloy; Grain refinement; Twinning; Aging;

机译：镁合金;细化晶粒;孪生;时效;

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Influence of aging on twin boundary strengthening in magnesium alloys

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