Effect of thermal exposure on the room temperature tensile properties of Grade 2 titanium

Dobeson, Richard, Petrazoller, Nicolas, Dargusch, Matthew and McDonald, Stuart (2011) Effect of thermal exposure on the room temperature tensile properties of Grade 2 titanium. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 528 10-11: 3925-3929. doi:10.1016/j.msea.2011.01.086


Author Dobeson, Richard
Petrazoller, Nicolas
Dargusch, Matthew
McDonald, Stuart
Title Effect of thermal exposure on the room temperature tensile properties of Grade 2 titanium
Journal name Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing   Check publisher's open access policy
ISSN 0921-5093
1873-4936
Publication date 2011-04-01
Sub-type Article (original research)
DOI 10.1016/j.msea.2011.01.086
Volume 528
Issue 10-11
Start page 3925
End page 3929
Total pages 5
Place of publication Lausanne, Switzerland
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract
During exposure to the atmosphere at elevated temperature an α stabilised region develops on the surface of titanium alloys, the thickness of which is dependent on the temperature and cumulative time of exposure. In this research, samples of ASTM Grade 2 titanium were treated at a range of temperatures and times to investigate the effects of surface oxygen contamination on tensile properties. The stabilised α region that developed during the heat treatment was brittle and cracked easily after small amounts of strain, however these cracks were mostly arrested at the boundary between the transformed region and the bulk metal. The tensile strength of the heat-treated samples was compared to predicted values that assumed the transformed α-region did not contribute to the load bearing area. The comparison is reasonable when predicting the strength of samples treated at temperatures below the bulk α–β transition temperature but has limitations when applied to higher temperatures.
Keyword Titanium alloys
Mechanical characterisation
Thermomechanical processing
Commercial Purity Titanium
Mechanical-Properties
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 2012 Collection
 
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