共析钢(eutectoid steel):Wc=0.77% ? 亚共析钢(hypoeutectoid steel):Wc=0.0218~ 0.77% ? 过共析钢(hypereutectoid steel):Wc=0.77~ 2.11% 2013-6-17 白口铸铁 ?
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77~2.0%碳徐冷至常温时为雪明碳铁Cementite和波來铁混合组织称为过共析钢和波來铁混合组织称为过共析钢(Hypoeutectoid Steel)7.含碳量4.3%,冷却至1140℃时凝固成为沃斯田铁Austenite和Cementite雪明碳铁的细密共晶物称为共晶铸铁Eutectic Cast8.
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The hardening gradient and the character of abrasion in hardening layer of hypoeutectoid steel with two kinds of matrixes that was treated by laser beam have been studied.
研究了两种基体的亚共析钢经激光处理后,其硬化层的硬度梯度及其磨损特性。
Both steel iron and cast iron have the structures of eutectoid, hypoeutectoid and hypereutectoid.
钢和铸铁都有共析、亚共析和过共析这三种组织。
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