Texture evolution of orthorhombic α" titanium alloy investigated by in situ X-ray diffraction

被引：21

作者：

Elmay, W. ^{[1
]}

Berveiller, S. ^{[1
]}

Patoor, E. ^{[1
]}

Gloriant, T. ^{[2
]}

Prima, F. ^{[3
]}

Laheurte, P. ^{[1
]}

机构：

[1] UMR CNRS 7239, Lab Etude Microstruct & Mecanigue Mat LEM3, 4 Rue Augustin Fresne, F-57078 Metz, France

[2] CNRS, Chim Met UMR 6226, 20 Ave Buttes Coesmes, F-35043 Rennes, France

[3] CNRS, Lab Physicochim Surfaces, UMR 7045, 11 Rue Pierre & Marie Curie, F-75231 Paris, France

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 679卷

关键词：

Titanium alloys; In situ XRD analysis; Texture evolution; Cyclic deformation; SHAPE-MEMORY; BIOMEDICAL APPLICATIONS; BETA; BEHAVIOR; MICROSTRUCTURE; TRANSFORMATION;

D O I：

10.1016/j.msea.2016.10.072

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present paper deals with an in-situ X-ray diffraction analysis during cyclic tensile tests of a fully martensitic Ti-24Nb alloy. Texture evolution of martensite alpha '' phase was followed during loading-unloading cycles. Preferential formation and reverse transformation of particular martensite variants have been observed based on pole figure analysis. The occurrence of the deformation mechanisms for the martensitic Ti-24Nb alloy was also commented by coupling microstructural observations during in-situ experiments and additional cyclic tests followed by heating after each unloading. Through the study of the evolution of the lattice strain, it was found that under loading conditions, the {020} planes exhibit a large tension lattice strain while the {200} planes are subjected to a compression solicitation, which causes the lattice parameters a and c to be shrunk, and b to be elongated.

引用

页码：504 / 510

页数：7

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