Four kinds of dual-phase steel with different morphology were developed by means of step quenching treatment routes.The research results showed that the maximum tensile strength of dual-phase steel raised with the increase of martensite content.The ferrite grain size of samples influenced the strength and elongation of dual-phase steels with different martensite contents.
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The research results showed that an arch structure would be formed in the top coal above the supports.
研究表明,支架上方顶煤体中能够形成“拱”结构,该结构的存在将对工作面矿山压力显现产生显著影响。
The research results showed that these bio - mimetic compounds and systems could effectively degrade lignin.
研究表明,这些仿酶化合物和仿酶体系能有效地降解木素。
The research results showed that the micelle structure of the additive had important influence on the performance of product.
结果表明,添加剂中胶体粒子的结构是影响产品性能的重要因素。
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