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首页> 外文期刊>ISIJ international >Microstructure And Properties Of Purity High Mn Steel Crossing Explosion Hardened
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Microstructure And Properties Of Purity High Mn Steel Crossing Explosion Hardened

机译：纯度高锰钢交叉爆炸淬火的组织和性能

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In this paper the effects of explosion hardening on the microstructure and the mechanical properties as well as the lifetime of purity high Mn steel crossing have been studied. The optimum explosion hardening technology of the purity high Mn steel crossing was proposed. That is the explosion by using cyclonite explosive in thickness of 4 mm. The new technology emphasizes the formation of a 25mm-deep hardened layer with surface hardness of 360 HB. Upon the explosion impact, the deformation mechanism of the material is found to follow in-situ plastic deformation. The explosion hardening mechanism of the steel crossing are dislocation and twin hardenings. The explosion hardening enhances the mechanical properties of the material, included the deformation resistance, wear resistance and fatigue resistance, therefore, the lifetime of the purity high Mn steel crossing can be increased by ～40% through the explosion hardening treatment.
机译：本文研究了爆炸硬化对高锰钢高纯钢道岔组织和力学性能以及寿命的影响。提出了高锰钢纯度交叉口的最佳淬火技术。那就是使用厚度为4毫米的旋风炸药爆炸。新技术着重于形成厚度为25mm的表面硬度为360 HB的硬化层。在爆炸冲击下，发现材料的变形机制遵循原位塑性变形。钢交叉口的爆炸硬化机理是位错和孪晶硬化。爆炸硬化增强了材料的机械性能，包括抗变形性，耐磨性和抗疲劳性，因此，通过爆炸硬化处理，高锰高纯钢的使用寿命可以增加约40％。

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