In situ high-energy X-ray diffraction studies of deformation-induced phase transformation in Ti-based amorphous alloy composites containing ductile dendrites

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	In situ high-energy X-ray diffraction studies of deformation-induced phase transformation in Ti-based amorphous alloy composites containing ductile dendrites
	J. Mu; Z. W. Zhu; R. Su; Y. D. Wang; H. F. Zhang; Y. Ren
	2013
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	61 期号:13 页码:5008-5017
摘要	The deformed-induced microstructure evolution and phase transformation behavior of Ti-based amorphous alloy composites (AACs) containing ductile dendrites in situ formed during solidification were investigated using ex situ transmission electron microscopy (TEM) and in situ high-energy X-ray diffraction (HE-XRD). In situ synchrotron-based HEARD experiments provide clear evidence on the deformation-induced phase transformation from beta to alpha '' martensite initiated already in the linear elastic stage of the macroscopic stress strain curve. Detailed analyses from the diffraction experiments show that the grains that were aligned with [0 0 1]beta along the loading direction (LD) were then easily transformed into alpha '' martensite, whereas the martensitic variants oriented with [1 0 0](alpha)(n), along LD were preferentially formed under compression. The current study provides quantitative information about changes in various microstresses between the crystal phase and the amorphous matrix during deformation. Enhancement of the macroscopic plasticity of the AACs was mainly attributed to the strain relaxation in the beta phase and to the formation of multiple shear bands in the amorphous matrix triggered by the deformation-induced phase transformation inside beta, knowledge of which greatly deepens understanding of the complex micromechanical behaviors in advanced AACs. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[mu, juan ; wang, yandong] northeastern univ, key lab anisotropy & texture mat moe, shenyang 110004, peoples r china. [zhu, zhengwang ; zhang, haifeng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [su, ru] beijing inst technol, sch mat sci & engn, beijing 100081, peoples r china. [wang, yandong] univ sci & technol beijing, state key lab adv met & mat, beijing 100083, peoples r china. [ren, yang] argonne natl lab, xray sci div, argonne, il 60439 usa. ; wang, yd (reprint author), northeastern univ, key lab anisotropy & texture mat moe, shenyang 110004, peoples r china. ; ydwang@mail.neu.edu.cn ; hfzhang@imr.ac.cn
关键词	Amorphous Alloy Composite Deformation Martensitic Phase Transformation X-ray Synchrotron Radiation Metallic-glass Composites Shape-memory Alloys Matrix Composites Mechanical-properties Tensile Properties Youngs Modulus Behavior Microstructure Plasticity Superelasticity
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71413
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Mu,Z. W. Zhu,R. Su,et al. In situ high-energy X-ray diffraction studies of deformation-induced phase transformation in Ti-based amorphous alloy composites containing ductile dendrites[J]. Acta Materialia,2013,61(13):5008-5017.
APA	J. Mu,Z. W. Zhu,R. Su,Y. D. Wang,H. F. Zhang,&Y. Ren.(2013).In situ high-energy X-ray diffraction studies of deformation-induced phase transformation in Ti-based amorphous alloy composites containing ductile dendrites.Acta Materialia,61(13),5008-5017.
MLA	J. Mu,et al."In situ high-energy X-ray diffraction studies of deformation-induced phase transformation in Ti-based amorphous alloy composites containing ductile dendrites".Acta Materialia 61.13(2013):5008-5017.