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Mechanical properties and deformation mechanisms of Ti-3Al-5Mo-4.5 V alloy with varied β phase stability

Xue Q ^1,2 Ma Y J ¹ Lei J F ¹ Yang R ¹ ^* Wang C ² ^*

文摘	Evolution of deformation mechanisms and mechanical properties of Ti-3Al-5Mo-4.5 V alloy with different β phase stability have been systematically investigated. β phase stability alteration is achieved through quenching temperature variation from dual α+β field(700 ℃) to single β field(880 ℃). Tensile tests at ambient temperature show that apparent yield strength of the alloy experiences an abrupt decrease followed by a significant increase from 700 ℃ to 880 ℃. Work hardening behavior is characterized by transition from the initial two-regime feature to the three-stage outlook. Concurrently, the maximum working hardening rate drops from 14000 MPa to 3000 MPa, which is concurrent with the shrinking volume fraction of primary α phase. Detailed discussion about the relationship between deformation mechanisms and β phase stability has been outlined.
来源	Journal of Materials Science & Technology ,2018,34(12):2507-2514 【核心库】
DOI	10.1016/j.jmst.2018.04.004
关键词	Dual-phase titanium alloy ; β phase stability ; Work hardening behavior ; Deformation mechanisms
地址	1. Institute of Metal Research,Chinese Academy of Sciences, Shenyang, 110016 2. School of Metallurgy,Northeastern University, Shenyang, 110089
语种	英文
文献类型	研究性论文
ISSN	1005-0302
学科	金属学与金属工艺
基金	support from the Strategic Priority Research Program of the Chinese Academy of Sciences ; 国家自然科学基金
文献收藏号	CSCD:6388144

参考文献共 33 共2页

引证文献 14 篇

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