Pressureless sintering of titanium and titanium alloys: sintering densification and solute homogenization

Qian, Ma, Yang, Ya F., Luo, Shudong D. and Tang, H. P. (2015). Pressureless sintering of titanium and titanium alloys: sintering densification and solute homogenization. In Ma Qian and Francis H Froes (Ed.), Titanium powder metallurgy: science, technology and applications (pp. 201-218) Kidlington, Oxford, United Kingdom: Elsevier. doi:10.1016/B978-0-12-800054-0.00012-5


Author Qian, Ma
Yang, Ya F.
Luo, Shudong D.
Tang, H. P.
Title of chapter Pressureless sintering of titanium and titanium alloys: sintering densification and solute homogenization
Title of book Titanium powder metallurgy: science, technology and applications
Place of Publication Kidlington, Oxford, United Kingdom
Publisher Elsevier
Publication Year 2015
Sub-type Research book chapter (original research)
DOI 10.1016/B978-0-12-800054-0.00012-5
Open Access Status Not Open Access
ISBN 9780128009109
9780128000540
Editor Ma Qian
Francis H Froes
Chapter number 12
Start page 201
End page 218
Total pages 18
Total chapters 31
Language eng
Abstract/Summary This chapter discusses the fundamental issues relevant to the sintering of commercially pure titanium (CP-Ti) and titanium alloys. It begins by providing a concise review of the stability of the surface oxide film on titanium powder. Experimental data suggest that noticeable dissolution of the surface oxide film on titanium powder starts from the temperature range of 615–674°C during heating (at 10°C/min), depending on powder characteristics. Following a brief discussion of the sintering of CP-Ti powder compacts, the rest of the chapter focuses on the sintering fabrication of titanium alloys containing slow diffusers. The decoupled sintering densification and solute homogenization issue is discussed in detail through the sintering of Ti-10V-2Fe-3Al (wt%). The importance of master alloy selection and design of appropriate sintering pathways is demonstrated for achieving both high sintering densification and solute homogenization. Also discussed is the use of sintering aids for enhanced sintering and microstructure modification.
Keyword Densification
Diffusion
Sintering
Solute homogenization
Titanium alloys
Q-Index Code BX
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Book Chapter
Collections: School of Mechanical & Mining Engineering Publications
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