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Correlation between the Mechanical Properties and the Strain-Induced Martensite Content Found by Various Techniques in an Austenitic–Martensitic TRIP Sheet Steel
Russian Metallurgy (Metally) ( IF 0.4 ) Pub Date : 2020-10-28 , DOI: 10.1134/s0036029520100274
V. F. Terent’ev , E. A. Eliseev , M. Yu. Yazvitskii , V. P. Sirotinkin , A. Yu. Marchenkov , V. I. Gromov

Abstract

The strain-induced martensite content in an austenitic–martensitic VNS9-Sh TRIP sheet steel is estimated by magnetic and X-ray diffraction techniques, and the results are compared. The influence of the martensite content on the static tensile and hardness properties is studied. The difference in the strain-induced martensite contents determined by magnetic and X-ray diffraction techniques is shown to depend on the strength of the steel. This difference is maximal when the strength properties are low. There is a good correlation between the hardness and the strain-induced martensite content in the surface layers of the material. The considerable scatter in the experimental data obtained for different steel heats results from the difference in the chemical compositions and the peculiarities of strain-induced martensite formation.



中文翻译:

奥氏体-马氏体TRIP薄钢板的力学性能与各种技术发现的应变诱发马氏体含量之间的相关性

摘要

通过磁和X射线衍射技术估算了奥氏体-马氏体VNS9-Sh TRIP钢板中应变诱发的马氏体含量,并将结果进行了比较。研究了马氏体含量对静态拉伸强度和硬度性能的影响。通过磁力和X射线衍射技术确定的应变诱发马氏体含量的差异显示取决于钢的强度。当强度特性低时,此差异最大。材料表层的硬度与应变诱发的马氏体含量之间具有良好的相关性。在不同钢种加热下获得的大量实验数据中的分散是由于化学成分的不同和应变诱发马氏体形成的特殊性所致。

更新日期:2020-10-30
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