科研之友
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摘要
A (Ti-35mass%Nb)-4mass% Sn alloy was cross-roll rolled with a reduction ratio of 70% in which the roll axes are tilted by +/- 5 degrees away from the transverse direction of the rolled sample and then aged at 250 degrees C for 2 h. Cross-roll rolling was found to increase yield strength and Young's modulus, simultaneously. Yield strength was higher in cross-roll rolled than in conventionally rolled at same reduction ratio. Yield and tensile strength further increased by a low temperature ageing by omega precipitation hardening and microstructure refinement. Yield and tensile strength of the aged 70% cross-roll rolled sample were higher than those of the aged 70% conventionally rolled one.
- 出版日期2014-10
