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Effect of Initial Microstructure on Phase Precipitation and Mechanical Properties during Heat Treatment of TC21 Titanium Alloy
School of Shipping and Mechatronic Engineering, Taizhou University, Taizhou, China
School of Shipping and Mechatronic Engineering, Taizhou University, Taizhou, China
School of Intelligent Manufacture, Taizhou Institute of Sci. & Tech., NJUST., Taizhou, China
Northwest Institute for Nonferrous Metal Research, Xi’an, China
- 1 School of Shipping and Mechatronic Engineering, Taizhou University, Taizhou, China
- 2 School of Shipping and Mechatronic Engineering, Taizhou University, Taizhou, China
- 3 School of Intelligent Manufacture, Taizhou Institute of Sci. & Tech., NJUST., Taizhou, China
- 4 Northwest Institute for Nonferrous Metal Research, Xi’an, China
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Abstract
Phase precipitation and mechanical properties of TC21 titanium alloy with two different initial microstructures during heat treatment were determined. Result indicated that compared with coarse microstructure alloy, fine microstructure alloy developed finer microstructure, more unstable ω and α 2 precipitates with much smaller size and lower volume fraction, and obtained better mechanical properties during heat treatment.
KeywordsTC21 Titanium AlloyFine MicrostructureMechanical PropertiesPhase Precipitation
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