On the Influence of Vanadium on Air-Hardening Medium Manganese Steels for Sustainable Forging Products,Steel Research International

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On the Influence of Vanadium on Air-Hardening Medium Manganese Steels for Sustainable Forging Products
Steel Research International ( IF 1.9 ) Pub Date : 2020-12-09 , DOI: 10.1002/srin.202000592
Alexander Gramlich ₁ , Aaron Middleton ₂ , Rolf Schmidt ₂ , Ulrich Krupp ₁

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A new alloy for drive-train applications with a significant addition of vanadium is presented. The influence of vanadium addition to air-hardening forging steels is investigated and discussed. For the investigations, a laboratory melt is casted and forged into a rod. The mechanical properties and the microstructure of the new alloy are described and compared with a vanadium-free reference alloy from a previous study. The forged component shows high strength and hardness in the as-forged state (YS: 892 MPa, UTS: 1366 MPa, hardness: 430 HV30) distributed equally over the full cross-section. In addition, the strength does not decrease during subsequent heat treatments enabling the application as a material for surface treatments such as nitriding or plasma nitriding. Although strength, ductility, and hardness change as expected with increasing tempering, toughness acts different than in vanadium-free alloys during intercritical annealing which hints at the interaction of vanadium with the fracture mechanism.

中文翻译：

钒对用于可持续锻造产品的空气硬化中锰钢的影响

介绍了一种用于传动系统应用的新合金，其中大量添加了钒。研究和讨论了钒添加量对空气硬化锻钢的影响。为了研究，实验室熔体被铸造并锻造成棒。描述了新合金的机械性能和微观结构，并与先前研究中的无钒参考合金进行了比较。锻造部件在锻造状态下显示出高强度和硬度（YS：892 MPa，UTS：1366 MPa，硬度：430 HV30），均匀分布在整个横截面。此外，在随后的热处理过程中强度不会降低，从而能够用作表面处理材料，例如渗氮或等离子渗氮。虽然强度、延展性、

更新日期：2020-12-09

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