...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Manufacturing Processes >Evolution of metallurgical properties of Ti-6Al-4V alloy fabricated in different energy densities in the Selective Laser Melting technique
【24h】

Evolution of metallurgical properties of Ti-6Al-4V alloy fabricated in different energy densities in the Selective Laser Melting technique

机译：选择性激光熔化技术制备不同能量密度的Ti-6Al-4V合金的冶金性能演变

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

Improving the metallurgical properties of the products fabricated by the Selective laser melting (SLM) process is still a challenge focusing on processing parameters and Energy Density (ED). In this study, the density, porosity and microstructure of cuboid Ti-6Al-4V alloy samples fabricated by the SLM process were investigated, paying particular attention to the manufacturing key factor ED. Seven different EDs between 39 J/mm(3) and 260 J/mm(3) were achieved by varying the scanning speed from 1000 mm/s to 150 mm/s. The results show the ED, as well as cooling conditions, have a great influence on the above mentioned metallurgical properties. Significantly different densities have been observed, with different Eds where the difference between the sample with the highest relative density and the sample with the lowest relative density was almost 2.45%. The highest relative product density of almost 99.45% was obtained at the ED value of 65 J/mm(3). The volume, shape and numbers of pores were different with different EDs. The resultant microstructure consisted of four typical hierarchical alpha' martensites, namely, primary, secondary, tertiary and quartic alpha' martensites within columnar prior beta grains.
机译：聚焦于加工参数和能量密度（ED），提高通过选择性激光熔融（SLM）工艺制造的产品的冶金性能仍然是一个挑战。在这项研究中，研究了通过SLM工艺制备的长方体Ti-6Al-4V合金样品的密度，孔隙率和微观结构，特别注意了制造关键因素ED。通过将扫描速度从1000 mm / s更改为150 mm / s，可以实现39 J / mm（3）和260 J / mm（3）之间的七个不同的ED。结果表明，ED以及冷却条件对上述冶金性能有很大的影响。观察到显着不同的密度，不同的Ed，相对密度最高的样品与最低相对密度的样品之间的差异几乎为2.45％。在ED值为65 J / mm（3）时，获得了最高近99.45％的最高相对产品密度。不同的EDs，孔的体积，形状和数量是不同的。所得的微观结构由四个典型的分层α'马氏体组成，即柱状先验β晶粒内的初生，次生，三次和四次α'马氏体。

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