Phase transformations in Zr-based bulk metallic glass cyclically loaded before plastic yielding

被引：20

作者：

Churyumov, A. Yu. ^{[2
]}

Bazlov, A. I. ^{[2
]}

Zadorozhnyy, V. Yu. ^{[1
]}

Solonin, A. N. ^{[2
]}

Caron, A. ^{[3
]}

Louzguine-Luzgin, D. V. ^{[1
]}

机构：

[1] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 980, Japan

[2] Natl Univ Sci & Technol MISiS, Moscow, Russia

[3] Leibniz Inst New Mat, Saarbrucken, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 550卷

关键词：

Bulk metallic glasses; Deformation; Phase transformation; Visco-elasticity; Nano-crystallization; INDUCED NANOCRYSTAL FORMATION; SHEAR BANDS; DEFORMATION-BEHAVIOR; MECHANICAL-PROPERTIES; FORMING ABILITY; STRAIN-RATE; ALLOY; DEVITRIFICATION; STABILITY; FLOW;

D O I：

10.1016/j.msea.2012.04.087

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present work represents phase transformations observed upon cyclic loading of Zr62.5Fe5CU22.5Al10 bulk metallic glassy samples within reversible deformation regime prior to plastic deformation. The structure of the samples was studied by X-ray diffraction and transmission electron microscopy including high-resolution imaging and analysis of selected-area electron diffraction and nanobeam diffraction patterns. Thermal properties of the samples were characterized by differential scanning calorimetry. It is found that kinetically frozen anelastic deformation accumulates at room temperature and causes crystallization of metallic glassy phase forming precursors of metastable crystalline FCC Zr-based phase stabilized by the alloying elements. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：358 / 362

页数：5

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