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Preparation and ring rolling processing of large size Ti-6Al-4V powder compact
Guo, R. P.; Xu, L.; Zong, B. Y.; Yang, R.; Xu, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
2016-06-05
发表期刊MATERIALS & DESIGN
ISSN0264-1275
卷号99页码:341-348
摘要This study reports the feasibility to fabricate large size Ti-6Al-4V alloy parts using the retained powder after screened out the finer powder for additive manufacturing. Effects of powder size on the microstructure and mechanical properties of powder compacts were studied. Effects of HIPing cycle on relative density distribution of large size powder compact were also investigated. Hot compression tests of as-HIPed powder compact were conducted. Prediction of temperature field distribution of large size powder compact during ring rolling was obtained though finite element method (FEM). The results showed that the powder size has no obvious influence on the microstructure and mechanical properties of as-HIPed Ti-6Al-4V alloy. The homogeneous as-HIPed powder compact with large dimensions can be produced through an optimized HIPing schedule. The optimized hot working processing window from the isothermal compression tests is temperature at 940-970 degrees C and strain rate at 1-10s(-1). The hot workability of Ti-6Al-4V powder compact is comparable or better than that of as-cast alloys. On the basis of isothermal compression tests and FEM results, a large workpiece of Ti-6Al-4V powder component has been successfully formed by ring rolling, and the mechanical performance of ring-rolled powder compact have some improvements than that of as-HIPed alloys. (C) 2016 Elsevier Ltd. All rights reserved.
部门归属[guo, r. p. ; xu, l. ; yang, r.] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [guo, r. p.] northeastern univ, sch met & mat, shenyang 110819, peoples r china ; [zong, b. y.] northeastern univ, minist educ, key lab anisotropy & texture mat, shenyang 110819, peoples r china
关键词Hot Working Ring Rolling Powder Metallurgy Hot Isostatic Pressing Titanium Alloy
学科领域Materials Science
资助者National Natural Science Foundation of China [U1302272]; National High Technology Research and Development Program of China [2013AA031606]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75839
专题中国科学院金属研究所
通讯作者Xu, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Guo, R. P.,Xu, L.,Zong, B. Y.,et al. Preparation and ring rolling processing of large size Ti-6Al-4V powder compact[J]. MATERIALS & DESIGN,2016,99:341-348.
APA Guo, R. P.,Xu, L.,Zong, B. Y.,Yang, R.,&Xu, L .(2016).Preparation and ring rolling processing of large size Ti-6Al-4V powder compact.MATERIALS & DESIGN,99,341-348.
MLA Guo, R. P.,et al."Preparation and ring rolling processing of large size Ti-6Al-4V powder compact".MATERIALS & DESIGN 99(2016):341-348.
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