As the lightest constructional material, magnesium alloy has high specific strength, high specific stiffness, good magnetic-shielding ability, good damping ability, and good machinability.

镁合金是比重最轻的结构材料，具有高的比强度、比刚度和良好的磁屏蔽性、阻尼性、切削加工性等优点。

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This paper mainly presents that constructional mid-carbon alloy steel, after bulk moulding deformation, heat treatment and cold surface deformation can raise fatigue strength of materials effectively.

本文主要介绍中碳合金结构钢经整体塑性变形、热处理后再进行表面冷变形工艺是提高材料疲劳强度的有效途径。

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The rapid quantitative analysis of nitrogen in alloy constructional steel and electrical engineering steel with optical emission spectrometry is described.

叙述了用原子发射光谱法快速定量分析合金结构钢和电工钢中氮。

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