Determination of minimum machining depth after heat treatment of ASTM grade 2 titanium alloy

Dobeson, Richard G., McDonald, Stuart D. and Dargusch, Matthew S. (2012) Determination of minimum machining depth after heat treatment of ASTM grade 2 titanium alloy. Advanced Engineering Materials, 14 7: 473-476. doi:10.1002/adem.201200106


Author Dobeson, Richard G.
McDonald, Stuart D.
Dargusch, Matthew S.
Title Determination of minimum machining depth after heat treatment of ASTM grade 2 titanium alloy
Journal name Advanced Engineering Materials   Check publisher's open access policy
ISSN 1438-1656
1527-2648
Publication date 2012-07
Sub-type Article (original research)
DOI 10.1002/adem.201200106
Volume 14
Issue 7
Start page 473
End page 476
Total pages 4
Place of publication Weinheim, Germany
Publisher Wiley - VCH Verlag
Collection year 2013
Language eng
Abstract This paper reports on the development of a practical tool for determining minimum machining depths required after heat treatment of ASTM Grade 2 titanium alloys. Mechanical properties are adversely affected by the brittle alpha-case that develops when titanium and its alloys are exposed to oxygen at elevated temperatures. This layer is normally removed by machining prior to putting the component into service. The exact depth of material that is required to be removed is dependent on the combined time and temperature of any prior heat treatment. This paper presents a study of oxygen diffusion in ASTM Grade 2 titanium alloy that was performed to quantify the rate of alpha-case formation. A generalized method of predicting the depth of alpha-case is discussed and a nomogram has been developed and presented as a tool for determining the minimum amount of material that needs to be removed.
Keyword Mechanical-properties
Ti-6al-4v alloy
Diffusion
Oxygen
Oxidation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2013 Collection
 
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Created: Sun, 29 Jul 2012, 00:05:52 EST by System User on behalf of School of Mechanical and Mining Engineering