Strengthening mechanisms in nanostructured copper/304 stainless steel multilayers

被引：36

作者：

Zhang, X ^{[1
]}

Misra, A ^{[1
]}

Wang, H ^{[1
]}

Shen, TD ^{[1
]}

Swadener, JG ^{[1
]}

Embury, JD ^{[1
]}

Kung, H ^{[1
]}

Hoagland, RG ^{[1
]}

Nastasi, A ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2003年 / 18卷 / 07期

关键词：

D O I：

10.1557/JMR.2003.0220

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanostructured Cu/304 stainless steel (SS) multilayers were prepared by magnetron sputtering. 304SS has a face-centered-cubic (fcc) structure in bulk. However, in the Cu/304SS multilayers, the 304SS layers exhibit the fcc structure for layer thickness of less than or equal to5 nm in epitaxy with the neighboring fcc Cu. For 304SS layer thickness larger than 5 nm, body-centered-cubic (bcc) 304SS grains grow on top of the initial 5 nm fcc SS with the Kurdjumov-Sachs orientation relationship between bcc and fcc SS grains. The maximum hardness of Cu/304SS multilayers is about 5.5 GPa (factor of two enhancement compared to rule-of-mixtures hardness) at a layer thickness of 5 nm. Below 5 rim, hardness decreases with decreasing layer thickness. The peak hardness of fcc/fcc Cu/304SS multilayer is greater than that of Cu/Ni, even though the lattice-parameter mismatch between Cu and Ni is five times greater than that between Cu and 304SS. This result may primarily be attributed to the higher interface barrier stress for single-dislocation transmission across the {111} twinned interfaces in Cu/304S S as compared to the {100} interfaces in Cu/Ni.

引用

页码：1600 / 1606

页数：7

共 25 条

[1] Dislocation-based deformation mechanisms in metallic nanolaminates [J].

Anderson, PM ;

Foecke, T ;

Hazzledine, PM .

MRS BULLETIN, 1999, 24 (02) :27-33

[2] The effect of copper on passivity and corrosion behaviour of ferritic and ferritic-austenitic stainless steels [J].

Banas, J ;

Mazurkiewicz, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 277 (1-2) :183-191

[3]

BARBEE TW, 1979, THIN SOLID FILMS, V63, P143, DOI 10.1016/0040-6090(79)90115-9

[4] MODEL OF SUPERLATTICE YIELD STRESS AND HARDNESS ENHANCEMENTS [J].

CHU, X ;

BARNETT, SA .

JOURNAL OF APPLIED PHYSICS, 1995, 77 (09) :4403-4411

[5] Structure and strength of multilayers [J].

Clemens, BM ;

Kung, H ;

Barnett, SA .

MRS BULLETIN, 1999, 24 (02) :20-26

[6] ON DISLOCATION STORAGE AND THE MECHANICAL RESPONSE OF FINE-SCALE MICROSTRUCTURES [J].

EMBURY, JD ;

HIRTH, JP .

ACTA METALLURGICA ET MATERIALIA, 1994, 42 (06) :2051-2056

[7]

HALL EO, 1951, P ROY SOC LOND B BIO, V64, P474

[8] Yield stress of nano- and micro-multilayers [J].

Hazzledine, PM ;

Rao, SI .

LAYERED MATERIALS FOR STRUCTURAL APPLICATIONS, 1996, 434 :135-140

[9] On the strengthening effects of interfaces in multilayer fcc metallic composites [J].

Hoagland, RG ;

Mitchell, TE ;

Hirth, JP ;

Kung, H .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2002, 82 (04) :643-664

[10]

HOAGLAND RG, UNPUB

← 1 2 3 →