期刊论文

Deng, Tongsheng;Ojo, OA

英文

材料科学技术(英文版)

1005-0302

2024

183

1-11

10.1016/j.jmst.2023.09.056

Jiangxi Provincial Natural Science Foundation [20224BAB204043]; Ganzhou Science and Technology Planning Project [60]; Graduate Innovation Special Fund Project of Jiangxi Province [YC2022-S655]

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High-temperature titanium alloys' thermal stability and creep resistance are significant during service in high temperatures. This study systematically investigated the thermal stability and mechanical properties of Ti-6.5A1-2.5Sn-9Zr-0.5Mo-1Nb-1W-0.3Si- x Sc ( x , 0-0.5 wt.%) at 650 degrees C. The lamellar secondary alpha phase is refined and the formation of Sc2 O3 is increased with the increasing scandium ( Sc ) additions, which improves the strength of the alloy, while excessive Sc2 O3 becomes the crack source and deteriorates the plasticity. The oxygen content in the matrix is reduced by ...