Porous and foamed amorphous metals

被引：41

作者：

Brothers, Alan H.

Dunand, David C.

机构：

来源：

MRS BULLETIN | 2007年 / 32卷 / 08期

关键词：

D O I：

10.1557/mrs2007.126

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article reviews the state of the art in the field of porous amorphous metals by describing current processing techniques, mechanical properties, and potential applications. In addition to the reduction in density, the main benefit of introducing porosity in amorphous metals is the improvement in compressive ductility and energy absorption. This ductilizing effect is explained by: (1) shear-band interruption by individual pores at low porosities and (2) stable plastic bending of thin struts at higher porosities, with cellular amorphous metals displaying compressive ductilities of up to 80%.

引用

收藏

页码：639 / 643

页数：5

相关论文

共 30 条

[1]

Ashby M.F., 2000, METAL FOAMS DESIGN G

[2] Acoustic emissions analysis of damage in amorphous and crystalline metal foams [J].

Brothers, A. H. ;

Prine, D. W. ;

Dunand, D. C. .

INTERMETALLICS, 2006, 14 (8-9) :857-865

[3] Amorphous metal foams [J].

Brothers, AH ;

Dunand, DC .

SCRIPTA MATERIALIA, 2006, 54 (04) :513-520

[4] Plasticity and damage in cellular amorphous metals [J].

Brothers, AH ;

Dunand, DC .

ACTA MATERIALIA, 2005, 53 (16) :4427-4440

[5] Processing and structure of open-celled amorphous metal foams [J].

Brothers, AH ;

Scheunemann, R ;

DeFouw, JD ;

Dunand, DC .

SCRIPTA MATERIALIA, 2005, 52 (04) :335-339

[6] Ductile bulk metallic glass foams [J].

Brothers, AH ;

Dunand, DC .

ADVANCED MATERIALS, 2005, 17 (04) :484-+

[7] Syntactic bulk metallic glass foam [J].

Brothers, AH ;

Dunand, DC .

APPLIED PHYSICS LETTERS, 2004, 84 (07) :1108-1110

[8] Shear band spacing under bending of Zr-based metallic glass plates [J].

Conner, RD ;

Li, Y ;

Nix, WD ;

Johnson, WL .

ACTA MATERIALIA, 2004, 52 (08) :2429-2434

[9] Shear bands and cracking of metallic glass plates in bending [J].

Conner, RD ;

Johnson, WL ;

Paton, NE ;

Nix, WD .

JOURNAL OF APPLIED PHYSICS, 2003, 94 (02) :904-911

[10] Selective electrochemical dissolution in two-phase La-Zr-Al-Cu-Ni metallic glass [J].

Gebert, A ;

Kündig, AA ;

Schultz, L ;

Hono, K .

SCRIPTA MATERIALIA, 2004, 51 (10) :961-965