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首页> 外文期刊>ISIJ international >Microstructure-Mechanical Properties Correlation in Ultrafine Grained Steels Processed by Large Strain Warm Deformation
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Microstructure-Mechanical Properties Correlation in Ultrafine Grained Steels Processed by Large Strain Warm Deformation

机译：大应变热变形处理超细晶粒钢的组织与力学性能相关

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摘要

Ultrafine-grained steels with grain size of about 1 μm offer the prospect of high strength coupled with high toughness among conventional steel compositions and are attracting the attention of researchers worldwide. Application of these ultrafine grained steels to the fabrication of potential engineering structures demand extensive study of their mechanical properties and reasons for the improvement in order to get detailed insight into their behaviour under operating conditions. While there are many studies on the development of ultrafine grained microstructures per se, fewer studies were reported on the more important aspect of evaluating their mechanical properties. This is to verify the basic assumption that the microstructural refinement at bulk level indeed improves the properties offering the prospect of a realistic replacement of the existing conventional steels in the near future. This review article attempts to present a comprehensive picture on the microstructure-mechanical properties correlation of ultrafine grained steels fabricated by large strain warm deformation and reasons behind the improved properties from a micromechanics point of view.
机译：晶粒尺寸约为1μm的超细晶粒钢在常规钢成分中提供了高强度和高韧性的前景，并引起了全球研究人员的关注。这些超细晶粒钢在潜在工程结构的制造中的应用要求对其力学性能及其改进原因进行广泛研究，以便更深入地了解其在工作条件下的性能。虽然关于超细晶粒微结构本身发展的研究很多，但关于评估其机械性能的更重要方面的研究报道却很少。这是为了验证基本假设，即在整体水平上进行微观组织细化确实会改善性能，从而为在不久的将来实际替代现有的常规钢提供了前景。这篇综述文章试图对由大应变热变形制造的超细晶粒钢的微观结构-力学性能相关性以及从微观力学角度改进性能的原因进行全面介绍。

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