• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International conference on powder metallurgy particulate materials >EFFECT OF POROSITY ON THE MICROSTRUCTURE AND MECHANICAL BEHAVIOR OF POWDER METALLURGY Fe-Mo-Ni STEELS
【24h】

EFFECT OF POROSITY ON THE MICROSTRUCTURE AND MECHANICAL BEHAVIOR OF POWDER METALLURGY Fe-Mo-Ni STEELS

机译：孔隙率对粉末冶金Fe-Mo-Ni钢的微观结构和力学行为的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The microstructure and mechanical properties of Fe-0.85Mo-2Ni-0.6 graphite powder metallurgy (P/M) steels were investigated as a function of sintered density. A quantitative analysis of microstructure was correlated with tensile and fatigue behavior to understand the influence of pore size, shape, and distribution on mechanical behavior. Tensile strength, Young's modulus, strain-to-failure, and fatigue strength all increased with a decrease in porosity. The decrease in Young's modulus with increasing porosity was predicted by analytical modeling. Two-dimensional microstructure-based finite element modeling showed that the enhanced tensile and fatigue behavior of the denser steels could be attributed to smaller, more homogeneous, and more rounded porosity which resulted in more homogeneous deformation and decreased strain localization in the material. The implications of pore size, morphology, and distribution on the mechanical behavior and fracture of P/M steels are discussed.
机译：作为烧结密度的函数研究了Fe-0.85Mo-2Ni-0.6石墨粉末冶金（P / M）钢的微观结构和力学性能。微观结构的定量分析与拉伸和疲劳行为相关，以了解孔径，形状和分布对机械行为的影响。拉伸强度，杨氏模量，应变失效，疲劳强度随着孔隙率的降低而增加。通过分析建模预测了杨氏损伤的杨氏模量的降低。二维微结构的有限元模型表明，密度钢的增强拉伸和疲劳行为可归因于较小，更均匀，更圆的孔隙率，导致材料中更均匀的变形和降低的应变局部化。讨论了孔径，形态和分布对P / M钢的力学行为和骨折的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号