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Title: Nanoscale steel-brass multilayer laminates made by cold rolling: Microstructure and tensile properties

Abstract

The thrust of this study is to fabricate steel-brass multilayer laminates with layer thicknesses in the nanometer range and to evaluate their mechanical properties. Repeated cold rolling of multilayer stacks was adopted to produce the laminates, because the relative simplicity and the low-cost nature of this process can allow the scaling-up of the technique to the level of commercial-scale production. This work is a continuation of a previous study, in which steel-brass laminates with layer thicknesses in the micrometer range were fabricated for the first time and their tensile properties were evaluated. The present work, however, emphasizes making multilayers with layer thicknesses in the nanometer range and evaluating their mechanical properties. The dependence of strength and ductility on the layer spacing in the nanometer range, is highlighted. It is shown that strength levels comparable to quenched and tempered low alloy steels can be achieved in the laminates by rolling down to the low end of nanometer range. The relevant strengthening mechanisms are also discussed.

Authors:
; ;
Publication Date:
Research Org.:
Univ. of Utah, Salt Lake City, UT (US)
OSTI Identifier:
20075983
Resource Type:
Journal Article
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 42; Journal Issue: 10; Other Information: PBD: 10 May 2000; Journal ID: ISSN 1359-6462
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MICROSTRUCTURE; TENSILE PROPERTIES; STEELS; BRASS; COMPOSITE MATERIALS; LAYERS; COLD WORKING; ROLLING; METALLOGRAPHY

Citation Formats

Kavarana, F.H., Ravichandran, K.S., and Sahay, S.S. Nanoscale steel-brass multilayer laminates made by cold rolling: Microstructure and tensile properties. United States: N. p., 2000. Web. doi:10.1016/S1359-6462(00)00318-3.
Kavarana, F.H., Ravichandran, K.S., & Sahay, S.S. Nanoscale steel-brass multilayer laminates made by cold rolling: Microstructure and tensile properties. United States. doi:10.1016/S1359-6462(00)00318-3.
Kavarana, F.H., Ravichandran, K.S., and Sahay, S.S. Wed . "Nanoscale steel-brass multilayer laminates made by cold rolling: Microstructure and tensile properties". United States. doi:10.1016/S1359-6462(00)00318-3.
@article{osti_20075983,
title = {Nanoscale steel-brass multilayer laminates made by cold rolling: Microstructure and tensile properties},
author = {Kavarana, F.H. and Ravichandran, K.S. and Sahay, S.S.},
abstractNote = {The thrust of this study is to fabricate steel-brass multilayer laminates with layer thicknesses in the nanometer range and to evaluate their mechanical properties. Repeated cold rolling of multilayer stacks was adopted to produce the laminates, because the relative simplicity and the low-cost nature of this process can allow the scaling-up of the technique to the level of commercial-scale production. This work is a continuation of a previous study, in which steel-brass laminates with layer thicknesses in the micrometer range were fabricated for the first time and their tensile properties were evaluated. The present work, however, emphasizes making multilayers with layer thicknesses in the nanometer range and evaluating their mechanical properties. The dependence of strength and ductility on the layer spacing in the nanometer range, is highlighted. It is shown that strength levels comparable to quenched and tempered low alloy steels can be achieved in the laminates by rolling down to the low end of nanometer range. The relevant strengthening mechanisms are also discussed.},
doi = {10.1016/S1359-6462(00)00318-3},
journal = {Scripta Materialia},
issn = {1359-6462},
number = 10,
volume = 42,
place = {United States},
year = {2000},
month = {5}
}