Microstructures and Mechanical Properties of the 5Cr13 Martensite Stainless Steel Refined by Oxide Particles,Steel Research International

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Microstructures and Mechanical Properties of the 5Cr13 Martensite Stainless Steel Refined by Oxide Particles
Steel Research International ( IF 1.9 ) Pub Date : 2021-06-23 , DOI: 10.1002/srin.202100086
Xiaoyu Li ₁ , Zhonghua Sun ₂ , Xin Zhang ₁ , Jianhang Feng ₁ , Jun He ₁ , Huifen Peng ₁

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Herein, Al₂O₃ and TiO₂ particles are introduced into the 5Cr13 high-carbon martensite stainless steel, aiming to improve its mechanical properties and cold-deformation ability. The results prove that the introduced oxide particles lead to enlarged equiaxed zone of the ingot, together with refinement in its columnar and equiaxed dendrites. They exist in the form of fine nanoparticles and serve as crucial heterogeneous nuclei to refine the austenite grains and martensitic microstructures of the steel. Then the oxide-added 5Cr13 steel exhibits higher hardness and better temper resistance, as well as good impact toughness. Accordingly, the use of the present master alloy provides a great convenience for the mass production of high-performance steels in the future.

中文翻译：

氧化物颗粒细化5Cr13马氏体不锈钢的显微组织和力学性能

这里，Al ₂ O ₃和TiO ₂在5Cr13高碳马氏体不锈钢中引入颗粒，以提高其力学性能和冷变形能力。结果证明，氧化物颗粒的引入导致铸锭等轴区扩大，柱状和等轴枝晶细化。它们以细小纳米粒子的形式存在，并作为重要的异质核来细化钢的奥氏体晶粒和马氏体微观结构。然后添加氧化物的5Cr13钢表现出更高的硬度和更好的抗回火性，以及良好的冲击韧性。因此，本母合金的使用为今后高性能钢的大规模生产提供了极大的便利。

更新日期：2021-06-23

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