期刊文献+

置氢TC21钛合金粉末模压成形烧结组织性能研究 被引量:3

Microstructure and Properties of Die Forming and Sintering of Hydrogenated TC21 Alloy Powder
下载PDF
导出
摘要 采用置氢TC21钛合金粉末模压成形+保护气氛烧结工艺,研究置氢TC21钛合金粉末模压成形-烧结合金的组织性能的变化规律。结果表明:置氢量0.22%(质量分数,下同)和0.39%的TC21粉末烧结体组织较细,致密化程度也较高,置氢量0.39%的TC21粉末烧结体退火后的抗压强度和屈服强度最高。随着置氢量的增加,置氢TC21钛合金粉末模压成形烧结体片层组织尺寸变薄、针状的组织变细,晶粒尺寸变小;置氢TC21钛合金粉末模压成形烧结体退火后组织较退火前发生了明显的均匀化和细化;烧结体真空退火后氢含量达到安全状态,其中,置氢量0.39%的TC21钛合金粉末烧结体致密效果较好、综合力学性能较高。 The effect of hydrogenation on the microstructure and properties of TC21 alloy by die forming and sintering using hydrogenated powder to produce titanium alloy was researched by means of the room-temperature die forming and sintering in a protection atmosphere. The results show that the TC21 titanium sintered body using hydrogenated powder with hydrogen content of 0.39 wt% by die forming and sintering has a thinner microstructure and higher density, compression strength and compressive yield strength than the others. With hydrogen content increasing, the sheet microstructure gets thinner and finer and the grain size becomes smaller and homogeneous with safe hydrogen content. As a conclusion, the hydrogen content of 0.39wt% is the best for the TC21 titanium alloy sintered body according to the density and mechanical property.
出处 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2009年第11期1924-1928,共5页 Rare Metal Materials and Engineering
基金 国家军工"973"项目(11AZ6305)
关键词 置氢量 置氢TC21钛合金粉末 模压成形 烧结体 组织性能 hydrogen content hydrogenated TC21 alloy powder die forming sintered body microstructure and properties
  • 相关文献

参考文献13

二级参考文献30

  • 1曹春晓.选材判据的变化与高损伤容限钛合金的发展[J].金属学报,2002,38(z1):4-11. 被引量:104
  • 2康强,张彩碚,赖祖涵,宁小光.Ti-H合金共析转变产物的形态和结构[J].金属学报,1995,31(6). 被引量:2
  • 3曲恒磊 赵永庆 朱知寿 等.1种高强韧钛合金及其加工方法[P].中国国防专利:03105965 1.2003.
  • 4曲恒磊 赵永庆 李辉 等.一种具有优异综合性能的高强韧钛合金[P].中国专利:申请号03105965.1..
  • 5Kolachev B A.Hydrogen plasticization in hot deforming of titanium alloys[A].Titanium99 Science and Technology[C]:626-627.
  • 6Kerr W R,Smith P R, Rosenblum M E, et al.Hydrogen as an alloying element in titanium[A].Titanium80 Science and Tech-nology[C]:2481-2482.
  • 7NAKAHIGASHI J, YOSHIMURA H. Ultra-fine grain refinement and tensile properties of titanium alloys obtained through protium treatment [ J ]. J of Alloys and Compounds,2002,330 - 332:384 - 388.
  • 8ELIEZER D, ELIAZ N, SENKOV O, et al. Positive effects of hydrogen in metals[J]. Materials Science and Engineering,2000, A280:220 - 224.
  • 9ZHANG S Q, ZHAO L R. Effect of hydrogen on the super-plasticity and microstructure of Ti - 6Al - 4V alloy[J]. J of Alloys and Compounds, 1995, 218:233 -236.
  • 10NIINOMI M, GONG B,KOBAYASHI T, et al. Fracture characteristics of Ti - 6Al - 4V and Ti - 5Al - 2. 5Fewith refined microstructure using hydrogen [ J ]. Metallurgical and Materials Transactions A, 1995, 26A: 1141-1151.

共引文献278

同被引文献23

引证文献3

二级引证文献6

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部