江峰
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  • 学历:博士研究生毕业
  • 学位:博士
  • 所在单位:材料科学与工程学院
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  • 学科:材料科学与工程
  • 学科:材料科学与工程
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陈良斌博士关于高熵合金表面引入梯度结构强化的论文被MSE-A 录用发表!
  • 发布时间:2019-12-03
  • 文章标题:陈良斌博士关于高熵合金表面引入梯度结构强化的论文被MSE-A 录用发表!
  • 内容:

     

    Gradient structure design to strengthen carbon interstitial  Fe 40 Mn 40 Co 10 Cr 10 high entropy alloys

    Liangbin Chen  a , , Tinghui Cao a , Ran Wei a , c , ** , Ke Tang a , Chao Xin a , Feng Jiang a , * , Jun Sun a
     
    In this work, gradient structure is successfully produced in the surface of FCC structured (Fe40Mn40Co10Cr10)C3.3 high entropy alloy (HEA) by using surface mechanical rolling treatment (SMRT). The depth of surface gradient layer with higher hardness increases with increasing the SMRT passes. The introducing of gradient layer not only signifificantly improves the strength of HEAs but also remains suffificient ductility. The ultra-high strength of the gradient structured HEA is mainly related to the synergetic strengthening mechanism, while the comparatively good ductility is ascribed to the back stress strain hardening mechanism. Gradient structure design provides a novel strategy for producing  HEAs with high performance.