Study of the structural relaxation-induced embrittlement of hypoeutectic Zr-Cu-Al ternary bulk glassy alloys

被引：81

作者：

Yokoyama, Yoshihiko ^{[1
]}

Yamasaki, Tohru ^{[2
]}

Liaw, Peter K. ^{[3
]}

Inoue, Akihisa ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] Univ Hyogo, Sch Engn, Shosha Himeji 6012203, Japan

[3] Univ Tennessee, Fac Mat Sci & Engn, Knoxville, TN 37996 USA

来源：

ACTA MATERIALIA | 2008年 / 56卷 / 20期

关键词：

Hypoeutectic Zr-Cu-Al bulk glassy alloy; No Structural relaxation-induced embrittlement; Tensile test; Charpy impact test; Fatigue test;

D O I：

10.1016/j.actamat.2008.08.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly reliable mechanical properties are the most important factors on which the industrial use of bulk glassy alloys (BGAs) depends. Most BGAs exhibit degradation of their mechanical properties due to structural relaxation, which easily occurs during enlargement and annealing. Although structural relaxation is usually accompanied with severe embrittlement, from the tensile fracture strain and the Charpy impact value, we have found that hypoeutectic BGAs exhibit no degradation of ductility and toughness even after complete structural relaxation. The fatigue behavior of hypoeutectic BGAs remains unchanged even after complete structural relaxation. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6097 / 6108

页数：12

共 33 条

[1]

ASHBY MF, 1980, ENG MAT, V1, P224

[2] Metallic glass matrix composite with precipitated ductile reinforcement [J].

Fan, C ;

Ott, RT ;

Hufnagel, TC .

APPLIED PHYSICS LETTERS, 2002, 81 (06) :1020-1022

[3] Effect of oxygen on phase formation and thermal stability of slowly cooled Zr65Al7.5Cu7.5Ni10 metallic glass [J].

Gebert, A ;

Eckert, J ;

Schultz, L .

ACTA MATERIALIA, 1998, 46 (15) :5475-5482

[4] ATOMIC TRANSPORT AND STRUCTURAL RELAXATION IN METALLIC GLASSES [J].

GREER, AL .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1984, 61-2 (JAN) :737-748

[5] Free volume kinetics during sub-Tg structural relaxation of a bulk Pd40Ni40P20 metallic glass [J].

Haruyama, O ;

Inoue, A .

APPLIED PHYSICS LETTERS, 2006, 88 (13)

[6] HIGH-RESOLUTION ELECTRON-MICROSCOPE OBSERVATION OF MEDIUM RANGE ATOMIC ORDERING IN AN AMORPHOUS PD-SI ALLOY [J].

HIROTSU, Y ;

ANAZAWA, K ;

OKUBO, T .

MATERIALS TRANSACTIONS JIM, 1990, 31 (07) :573-581

[7] Designing metallic glass matrix composites with high toughness and tensile ductility [J].

Hofmann, Douglas C. ;

Suh, Jin-Yoo ;

Wiest, Aaron ;

Duan, Gang ;

Lind, Mary-Laura ;

Demetriou, Marios D. ;

Johnson, William L. .

NATURE, 2008, 451 (7182) :1085-U3

[8] PREPARATION OF BULKY ZR-BASED AMORPHOUS-ALLOYS BY A ZONE-MELTING METHOD [J].

INOUE, A ;

YOKOYAMA, Y ;

SHINOHARA, Y ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1994, 35 (12) :923-926

[9] SOLIDIFICATION ANALYSES OF BULKY ZR60AL10NI10CU15PD5 GLASS PRODUCED BY CASTING INTO WEDGE-SHAPE COPPER MOLD [J].

INOUE, A ;

SHINOHARA, Y ;

YOKOYAMA, Y ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1995, 36 (10) :1276-1281

[10] ZR-AL-NI AMORPHOUS-ALLOYS WITH HIGH GLASS-TRANSITION TEMPERATURE AND SIGNIFICANT SUPERCOOLED LIQUID REGION [J].

INOUE, A ;

ZHANG, T ;

MASUMOTO, T .

MATERIALS TRANSACTIONS JIM, 1990, 31 (03) :177-183

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