MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Mechanical Properties of Pure Titanium Processed by Cryogenic Rolling and Annealing
Zheng ZhangHongjiang PanLifang MengJinxu ZhangXu YangHongliang GaoYulan GongBaipo ShuXinkun Zhu
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2019 Volume 60 Issue 4 Pages 513-518

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Abstract

In order to improve the mechanical properties of pure titanium, a series of pure titanium was processed by cryogenic rolling (CR) and annealing. The annealing was carried out in the temperature range of 420°C to 530°C, and the annealing time was 5 min to 15 min, respectively. It showed that CR at the liquid nitrogen temperature could significantly enhance the strength, but the ductility simultaneously decreased. Subsequent annealing could recover some of the ductility while the strength lowered. Compared with other samples, the sample annealed at 450°C for 10 min had the best combination of strength and ductility because of the bimodal distribution of grain sizes.

Fig. 5 The comprehensive mechanical performance of Ti samples. Fullsize Image
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© 2019 The Japan Institute of Metals and Materials
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