An in situ investigation of the deformation mechanisms in a β-quenched Ti-5Al-5V-5Mo-3Cr alloy

被引：38

作者：

Barriobero-Vila, Pere ^{[1
,2
]}

Gussone, Joachim ^{[1
]}

Kelm, Klemens ^{[1
]}

Haubrich, Jan ^{[1
]}

Stark, Andreas ^{[3
]}

Schell, Norbert ^{[3
]}

Requena, Guillermo ^{[1
,4
]}

机构：

[1] German Aerosp Ctr DLR, Inst Mat Res, D-51147 Cologne, Germany

[2] Vienna Univ Technol, Inst Mat Sci & Technol, Karlspl 13-308, A-1040 Vienna, Austria

[3] Helmholtz Zentrum Geesthacht, Max Planck Str 1, D-21502 Geesthacht, Germany

[4] Rhein Westfal TH Aachen, Metall Struct & Mat Syst Aerosp Engn, D-52062 Aachen, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2018年 / 717卷

关键词：

beta-titanium alloys; Deformation; Stress-induced martensite; Planar slip; Phase stability; In situ high energy synchrotron X-ray diffraction; PHASE-TRANSFORMATION KINETICS; INDUCED MARTENSITE FORMATION; TITANIUM-ALLOYS; TI-10V-3FE-3AL ALLOY; GRAIN-SIZE; TI-ALLOYS; DESIGN; TI-10V-2FE-3AL; STABILITY; BEHAVIOR;

D O I：

10.1016/j.msea.2018.01.077

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The sequence of activation of deformation mechanisms in a near-beta Ti-5Al-5Mo-5V-3Cr alloy quenched from the 13-field is investigated as a function of strain during uniaxial compression at 0.001 s(-1) up to epsilon = 0.041. Bulk in situ high energy synchrotron X-ray diffraction is applied to follow continuously the evolution of the microstructure of the alloy during deformation and is complemented with metallographic analysis. Stress induced beta -> alpha '' transformation takes place together with grain rotation of beta upon reaching the yield stress of the alloy at c = 0.021. During further loading, formation of beta sub-grain cells is activated at epsilon >= 0.03. The stress-induced martensite forms with a strong texture of {200} alpha '' planes perpendicular to the compression direction.

引用

页码：134 / 143

页数：10

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