Combined Strengthening-Toughening Technology of High Property Titanium Alloys for Aviation Uses in China

Zhi Shou Zhu; Xin Nan Wang; Guo Qiang Shang; Yue Fei; Han Qing Yu

doi:10.4028/www.scientific.net/AMM.727-728.158

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 727-728Combined Strengthening-Toughening Technology of...

Combined Strengthening-Toughening Technology of High Property Titanium Alloys for Aviation Uses in China

Abstract:

Combined strengthening-toughening technologies of several high property titanium alloys, such as TC4-DT, TC6, TC18, TC21 for aviation uses, have been studied via purification, quasi-b heat treatment, quasi-b forging and grain refinement. The effects of microstructure parameters of lamellar structure, basket-weave structure, refined grain structure etc. on the comprehensive mechanical properties of titanium alloys have been analyzed. The results have shown that, to acquire highly comprehensive static mechanical properties and excellent damage tolerance properties, quasi-b treatment and purification processing should be used for medium strength titanium alloys to get high ductility lamellar structure, while quasi-b forging processing be utilized for high strength titanium alloys to obtain high ductility basket-weave structure. Grain refinement processing is very necessary for both the strength levels of titanium alloys.

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Periodical:

Applied Mechanics and Materials (Volumes 727-728)

Pages:

158-162

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.727-728.158

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Online since:

January 2015

Authors:

Zhi Shou Zhu*, Xin Nan Wang, Guo Qiang Shang, Yue Fei, Han Qing Yu

Keywords:

Basket-Weave Structure, Damage Tolerance, Lamellar Structure, Quasi-β Forging, Quasi-β Heat Treatment, Refined Grain Structure, Titanium Alloy

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* - Corresponding Author

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