Characterization of Deformation Behavior of Individual Grains in Polycrystalline Cu-Al-Mn Superelastic Alloy Using White X-ray Microbeam Diffraction

被引：5

作者：

Kwon, Eui Pyo ^{[1
]}

Sato, Shigeo ^{[2
]}

Fujieda, Shun ^{[3
]}

Shinoda, Kozo ^{[3
]}

Kainuma, Ryosuke ^{[4
]}

Kajiwara, Kentaro ^{[5
]}

Sato, Masugu ^{[5
]}

Suzuki, Shigeru ^{[3
]}

机构：

[1] Korea Inst Ind Technol, Convergence Components & Agr Machinery Applicat G, Gimje 54325, South Korea

[2] Ibaraki Univ, Grad Sch Sci & Engn, Hitachi, Ibaraki 3168511, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[4] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

[5] Japan Synchrotron Radiat Res Inst, Kobe, Hyogo 6795198, Japan

来源：

METALS | 2015年 / 5卷 / 04期

基金：

日本学术振兴会;

关键词：

SHAPE-MEMORY ALLOY; SI-CR; TEXTURE; BEAM;

D O I：

10.3390/met5041845

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

White X-ray microbeam diffraction was applied to investigate the microscopic deformation behavior of individual grains in a Cu-Al-Mn superelastic alloy. Strain/stresses were measured in situ at different positions in several grains having different orientations during a tensile test. The results indicated inhomogeneous stress distribution, both at the granular and intragranular scale. Strain/stress evolution showed reversible phenomena during the superelastic behavior of the tensile sample, probably because of the reversible martensitic transformation. However, strain recovery of the sample was incomplete due to the residual martensite, which results in the formation of local compressive residual stresses at grain boundary regions. © 2015 by the authors; licensee MDPI, Basel, Switzerland.

引用

页码：1845 / 1856

页数：12

共 12 条

[1] In situ synchrotron analysis of lattice rotations in individual grains during stress-induced martensitic transformations in a polycrystalline CuAlBe shape memory alloy [J].