...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effects of electropulsing on the microstructure and microhardness of a selective laser melted Ti6Al4V alloy
【24h】

Effects of electropulsing on the microstructure and microhardness of a selective laser melted Ti6Al4V alloy

机译：施加对选择性激光熔融Ti6Al4V合金的微观结构和显微硬度的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Optimizing the microstructure and mechanical properties of the selective laser melted (SLM) Ti6Al4V alloy is an important issue both in the scientific and engineering interests. In this study, the rapid hardening and softening of the SLM-Ti6Al4V alloy is realized due to the obvious evolution of microstructures during the electropulsing treatment (EPT) with different discharge voltages. The microhardness of the EPT-7.5 kV sample decreased about 7% while the EPT-8 kV sample increased about 10% compared with the as-received sample. Scanning electron microscopy (SEM), electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM) analysis were used to characterize the evolutions of alpha and beta grains and dis-location structures which are corresponding with the microhardness changes induced by EPT. Analysis shows that EPT could reduce the thermodynamic barrier for alpha -> beta solid-state phase transformation, further arise microstructure refinement in the SLM-Ti6Al4V alloy. This research shed some new light on rapidly and efficiently improving the microstructure and mechanical properties of the additive manufactured metal components.
机译：优化选择性激光熔化（SLM）Ti6Al4V合金的组织和力学性能是一个重要的科学和工程问题。在本研究中，SLM-Ti6Al4V合金的快速硬化和软化是由于在不同放电电压下的脉冲电处理（EPT）过程中，微观结构发生了明显的演变。与接收样品相比，EPT-7.5 kV样品的显微硬度降低了约7%，而EPT-8 kV样品的显微硬度增加了约10%。利用扫描电子显微镜（SEM）、电子背散射衍射（EBSD）和透射电子显微镜（TEM）分析表征了与EPT引起的显微硬度变化相对应的α和β晶粒的演变和分布结构。分析表明，EPT可以降低SLM-Ti6Al4V合金α->β固态相变的热力学势垒，进一步细化组织。这项研究为快速有效地改善添加剂制造的金属部件的微观结构和机械性能提供了新的思路。

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