ScienceDirecthttps://www.sciencedirect.com/science/article/pii/S0921509324007676Comparative study on mechanism of hydrogen embrittlement of Fe…2024年9月1日 · For the addition of alloying elements, present authors [16] reported that the formation of (Fe,Mn) 2 SiO 4 oxide layer by Si addition in Fe–18Mn-0.6C-(0, 1.5, and 3)Si (wt.%) TWIP steels effectively suppresses the permeation of H atoms.The highest Si concentration of 3 wt.%, however, had the lowest resistance of H embrittlement by a formation of γ/ε interphase …

ScienceDirecthttps://www.sciencedirect.com/science/article/pii/S1359646211002776Effect of Al on the stacking fault energy of Fe–18Mn–0.6C …2011年8月1日 · The materials used in the present study were Fe–18Mn–0.6C and Fe–18Mn–0.6C–1.5Al (in wt.%) austenitic TWIP steels annealed at 800 °C. Both materials show a fully austenitic microstructure at room temperature and strain-induced martensitic transformation during tensile deformation was not observed.

ScienceDirecthttps://www.sciencedirect.com/science/article/pii/S0921509316310309Stacking fault energy and deformation mechanisms in Fe-xMn-0.6C …2016年10月31日 · The Fe-15Mn-0.6C and Fe-12Mn-0.6C steels exhibit a small volume fraction of strain-induced ε martensite. The ε-martensite is always found in association with profuse twinning as shown in Figs. 4 (b), (c) and 10. In the Fe-12Mn-0.6C steel, strain-induced α′ martensite is also observed. In the present study no direct evidence was found for ...

ScienceDirecthttps://www.sciencedirect.com/science/article/abs/pii/S0921509318308219Revealing the mechanical properties and microstructure evolutions of Fe ...2018年7月25日 · Three kinds of Fe–22Mn–0.6C–(x)Al (wt%) Twinning-Induced Plasticity (TWIP) steels were designed by changing the Al content.Uniaxial, unloading-reloading and stress-relaxation tensile tests were carried out to evaluate the mechanical properties. Meanwhile, electron channeling contrast imaging (ECCI), transmission electron microscopy (TEM) and X …

金属学报https://www.ams.org.cn/CN/10.11900/0412.1961.2014.00079基于位错密度的Fe-22Mn-0.6C型TWIP钢物理本构模型研究摘要: 基于位错密度及孪晶体积分数的演化, 建立了Fe-22Mn-0.6C孪晶诱导塑性(TWIP)钢滑移和孪生的塑性物理本构模型, 该模型考虑了孪晶内的滑移对整体塑性变形的贡献及孪晶区和基体区Taylor因子的差异, 采用基体滑移、孪晶区孪生和滑移的加权求和描述微区塑性变形.