Flow stress and work hardening of Mg-Y alloys
作者: A. KulaX. JiaR.K. MishraM. Niewczas
作者单位: 1Materials Science and Engineering, McMaster University, Hamilton, Canada
2AGH-University of Science and Technology, Cracow, Poland
3General Motors Global R&D Center, Warren, MI, USA
刊名: International Journal of Plasticity, 2017
来源数据库: Elsevier Journal
DOI: 10.1016/j.ijplas.2017.01.012
关键词: Mg-Y alloysflow stresswork hardeningsolid solution strengtheningdeformation mechanismscrystal plasticitystrengthductilityfracture
英文摘要: Abstract(#br)Flow stress and work hardening behaviour of Mg-Y binary alloys have been studied under uniaxial tension and compression at 4 K, 78 K and 298 K. Electron microscopy observations show that Yttrium forms multi-atomic clusters distributed randomly in Mg matrix. During thermomechanical processing, Y accumulates at the grain boundaries and controls recrystallization texture, which acquires lower intensity of the basal component and higher degree of randomness in comparison to polycrystalline Mg. Tensile and compressive yield stress of the alloys is temperature dependent and decreases as temperature increases from 4 K to 298 K. The grain size and solution strengthening contributions to the yield stress have been analyzed for all alloys and deformation temperatures. Critical resolved...
全文获取路径: Elsevier  (合作)
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影响因子:4.356 (2012)

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关键词翻译
关键词翻译
  • alloys 多组分胶
  • hardening 硬化
  • stress 应力