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首页> 外文期刊>Materials Science and Engineering >The strength differential effect in different heat treatment conditions of the steels 42CrMoS4 and 100Cr6
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The strength differential effect in different heat treatment conditions of the steels 42CrMoS4 and 100Cr6

机译：42CrMoS4和100Cr6钢在不同热处理条件下的强度差异效应

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摘要

It is well known that a number of metals show different mechanical properties under tensile and compressive loading. In case of steel this asymmetry is called "Strength Differential Effect" (SD-effect). In this work, the steels 42CrMoS4 (1.7227, AISI 4140) and 100Cr6 (1.3505, AISI 52100) are investigated in different heat treatment conditions with high and low strengths as well as different microstructures. Both, tensile and compressive stress-strain curves are compared and evaluated. It was found that the SD-effect mainly occurs in high-strength quenched and tempered conditions. A bainite condition almost shows the absence of a SD-effect. At low-strength normalized conditions a SD-effect can be observed, too. In these cases, the different length of the Lueders strain is assumed to be the reason of the SD-effect.
机译：众所周知，许多金属在拉伸和压缩载荷下表现出不同的机械性能。对于钢铁，这种不对称性称为“强度微分效应”（SD效应）。在这项工作中，研究了42CrMoS4（1.7227，AISI 4140）和100Cr6（1.3505，AISI 52100）在不同的热处理条件下具有高强度和低强度以及不同的显微组织的情况。比较和评估了拉伸应力和压缩应力-应变曲线。发现SD效应主要发生在高强度淬火和回火条件下。贝氏体状态几乎表明没有SD效应。在低强度归一化条件下，也可以观察到SD效应。在这些情况下，Lueders应变的不同长度被认为是SD效应的原因。

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