Reversion martensitic phase transformation induced {332}⟨1 1 3⟩ twinning in metastable β-Ti alloys

被引：17
作者：
Chen, Nana [1 ,2 ,3 ]
Molina-Aldareguia, Jon M. [2 ]
Kou, Hongchao [1 ]
Qiang, Fengming [1 ]
Wu, Zhihong [1 ]
Li, Jinshan [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
[2] IMDEA Mat Inst, C Eric Kandel 2, Madrid 28906, Spain
[3] Univ Politecn Madrid, ETS Ingn Caminos, Madrid 28040, Spain
来源：
MATERIALS LETTERS | 2020年 / 272卷
关键词：
Titanium alloys; Deformation structure; Twinning; Reversion-martensitic-phase-transformation; Focused-ion-beam; CRYSTALLOGRAPHY; MECHANISM;
D O I：
10.1016/j.matlet.2020.127883
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents in-situ observations of the reversion-martensitic-phase-transformation induced {3 3 2} < 1 1 3 >(beta) twinning process. Our observations in a beta-quenched Ti-7Mo-3Nb-3Cr-3Al alloy demonstrate that, instead of {3 3 2} < 1 1 3 >(beta) twinning, stress-induced-alpha '' martensitic-phase-transformation takes place during deformation. However, once the alpha '' deformation bands are lifted-out from the bulk matrix through focused-ion-beam milling and the stresses are relieved, those deformation bands consisting of {1 3 0} < 3 1 0 >(alpha '') compound-twins reversely transform back into {3 3 2} < 1 1 3 >(beta) twins. (C) 2020 Elsevier B.V. All rights reserved.
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页数：4
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