The microstructure, resistivity and mechanical property of Al Si Mn Fe alloys are studied.

试验研究了Al?Si?Mn?Fe合金的金相组织 、 电阻率和力学性能.

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With the increasing of aging time, the Al - Mg - Si - Mn - Cr alloy has remarked age hardening.

Al-0.65Mg-0.7Si-0.3Mn-0.1Cr 合金在150℃、175℃和190℃下时效, 均具有明显的时效硬化特性,脱溶相的析出贯序与Al -Mg-Si 合金相似.

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The effect of phosphorus on tempered martensite embrittlement ( TME ) has been studied in medium - carbon Si - Mn steel.

本文就杂质元素磷对中碳硅 — 锰钢回火马氏体脆性 ( TME ) 的影响作了研究,试验结果表明:钢中TME的存在并不决定于磷含量的多少,因为低磷钢或高磷钢中均可观察到TME现象.

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