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Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys
Shao, Z. J.; Li, Y.; Zhou, B.; Zhang, S. Z.; Xu, L.
2020
Source PublicationMATERIALS CHARACTERIZATION
Volume159
AbstractThe microstructural evolution and mechanical properties of powder metallurgy (PM) Ti-22Al-24Nb-0.5Mo prepared by combination of hot isostatic pressing (HIP), ring rolling, and heat treatment were investigated. The density and micropore distributions of PM alloys under HIP are relatively homogeneous. Ring rolled and solution treatment in the (alpha(2) + B2 + O) region led to the refinement of grain size and long lath O phase and alpha(2) phase mostly located at the grain boundaries. Aging treatment in the (B2 + O) region caused the occurrence of peritectoid reaction B2 + alpha(2) -> O owing to the segregation of the Nb element and refined the acicular O phase. The mechanical properties of PM alloys varied with the size and volume fraction of O phase and alpha(2) phase. The long lath O phases improve the elongation and acicular O precipitates are benefit to the elevation of alloy strength.
DOI10.1016/j.matchar.2019.110022
WOS IDWOS:000509819000054
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/83287
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Shao, Z. J.,Li, Y.,Zhou, B.,et al. Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys[J]. MATERIALS CHARACTERIZATION,2020,159.
APA Shao, Z. J.,Li, Y.,Zhou, B.,Zhang, S. Z.,&Xu, L..(2020).Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys.MATERIALS CHARACTERIZATION,159.
MLA Shao, Z. J.,et al."Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys".MATERIALS CHARACTERIZATION 159(2020).
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