Preparation of Powder Metallurgy Ti-47Al-2Cr-2Nb-0.15B

Pre-alloyed powder of Ti-47Al-2Cr-2Nb-0.15B was prepared by a gas atomization process and powder metallurgy (PM) γ-TiAl alloys were made through a hot isostatic pressing route. The atomized powders were canned in mild steel and CP-Ti containers, degassed and sealed. The selection of mild steel and C...

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Published inApplied Mechanics and Materials Vol. 552; no. Process Equipment, Mechatronics Engineering and Material Science II; pp. 269 - 273
Main Authors Wu, Jie, Cui, Yu You, Xu, Lei, Yang, Rui
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.06.2014
Subjects
Alloys
Carbon steels
Containers
Contamination
Gas atomization
Microstructure
Powder metallurgy
Titanium
Titanium base alloys
Gas Atomization
Hot Isostatic Pressing
Container Material Selection
Powder metallurgy
TiAl
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Summary:Pre-alloyed powder of Ti-47Al-2Cr-2Nb-0.15B was prepared by a gas atomization process and powder metallurgy (PM) γ-TiAl alloys were made through a hot isostatic pressing route. The atomized powders were canned in mild steel and CP-Ti containers, degassed and sealed. The selection of mild steel and CP-Ti on the microstructure of HIPed γ-TiAl alloy was studied. Due to the reaction between mild steel containers and γ-TiAl at relative high temperature (over 1230oC), the γ-TiAl matrix is contaminated. Fully dense compact with CP-Ti container can be obtained by HIPing with suitable parameters of temperature.
Bibliography:Selected, peer reviewed papers from the 2nd International Conference on Process Equipment, Mechatronics Engineering and Material Science (PEME 2014), June 28-29, 2014, Wuhan, China
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISBN:9783038351030
3038351032
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.552.269