Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 494, Issue 1-2, Pages 166-172Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2008.04.017
Keywords
TC21 alloy; Phase analysis; Microstructure
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Funding
- Northwest Institute for Nonferrous Metal Research
- National 973 Project of China [2007CB613802]
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TC21 alloy is a new alpha-beta damage tolerance titanium alloy with high strength and high toughness. Little work has been done in the field of microstructure and phase analysis since this alloy was developed. The phase and microstructure of TC21 alloy under different heat-treatment were investigated in this paper. Different experiment methods such as OM, SEM, TEM and XRD were adopted to investigate the microstructure and phase of TC21. The result showed that heat-treatment parameters (solution temperature, cooling rate and cooling mode) had influence on the feature of alpha phase, beta phase and secondary alpha phase. Two precipitated phases (alpha(2)-Ti3Al and B-2-Ti2AlNb) were discovered by XRD analysis. (C) 2008 Elsevier B.V. All rights reserved.
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