• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Welding and cutting >Laser metal deposition and microstructural evaluation of Ti-5553, Ti-811 and Mar-M247 as a repair and manufacturing approach for aerospace applications
【24h】

Laser metal deposition and microstructural evaluation of Ti-5553, Ti-811 and Mar-M247 as a repair and manufacturing approach for aerospace applications

机译：Ti-5553，Ti-811和Mar-M247的激光金属沉积和显微组织评估，作为航空航天应用的维修和制造方法

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

1. Both titanium alloys deposited acceptably, producing test blocks that were fully dense and free from cracks and fusion flaws. 2. Laser deposition performed at powers greater than 1,250 W resulted in excessive heat build-up within the anaerobic chamber, which resulted in damage to gas, water and powder delivery pipework. A large amount of fine par-ticulate material was also ejected from the melt pool during deposition, which caused contamination of the chamber and optical elements, contributing to heat build-up and premature failure. 3. The as-deposited microstructure of Ti-5553 consisted of large columnar and equiaxed prior p grains, with what appear to be concentrations of a forming elements at grain boundaries. This is likely due to chemical segregation during solidification.
机译：1.两种钛合金均可接受地沉积，产生的试块完全致密且无裂纹和熔合缺陷。 2.功率大于1,250 W的激光沉积导致厌氧室内过多的热量积聚，从而损坏了气体，水和粉末输送管道。在沉积过程中，大量细小颗粒材料也从熔池中喷出，这导致腔室和光学元件受到污染，从而导致热量积聚和过早损坏。 3. Ti-5553的沉积显微组织由大的柱状和等轴的先有p晶粒组成，似乎是晶界上形成元素的浓度。这可能是由于固化过程中的化学偏析。

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