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Title: Superplasticity in an ultrahigh carbon steel-aluminum bronze laminated composite

Abstract

Metal laminated composites based on ultrahigh carbon steel (UHCS) and aluminum bronze can be readily prepared by solid state bonding procedures at relatively low temperatures (670 to 700{degree}C). This is attributed to the fine grain size present in each component. No apparent interdiffusion occurs between the UHCS and aluminum bronze layers either during the solid state bonding steps or during superplastic flow below the transformation temperature of UHCS (770{degree}C). Interdiffusion does occur between the UHCS and aluminum bronze layers when the laminated composite is heated above 770{degree}C as a result of the dissolution of the iron carbides to form austenite. It is shown that a high strain-rate-sensitivity exponent (m = 0.5) can be achieved in the UHCS/bronze laminated composite at elevated temperatures (750 to 850{degree}C) and at low strain rates. High elongations are observed in the laminated composite under these conditions, with a maximum elongation of 650% noted at 750{degree}C. The UHCS/bronze laminated composite shows different mechanical characteristics from a UHCS/brass laminated composite. Brass readily cracks at elevated temperature and prevents the achievement of high elongations in a UHCS/brass composite even when the strain-rate-sensitivity is high. The aluminum bronze is fine-grained and does not form cracks during elevated temperature deformation.

Authors:
 [1];  [2];  [3]
  1. National Taipei Institute of Technology (Taiwan, Province of China). Dept. of Mechanical Engineering
  2. Univ. of Osaka Prefecture (Japan). Dept. of Metallurgical Engineering
  3. Stanford Univ., CA (United States). Dept. of Materials Science and Engineering
Publication Date:
OSTI Identifier:
143698
Report Number(s):
CONF-930246-
ISBN 0-87339-251-5; TRN: IM9413%%208
Resource Type:
Conference
Resource Relation:
Conference: Advanced composites `93: international conference on advanced composite materials (ICACM), Wollongong (Australia), 15-19 Feb 1993; Other Information: PBD: 1993; Related Information: Is Part Of Advanced composites 1993; Chandra, T. [ed.] [Univ. of Wollongong (Australia)]; Dhingra, A.K. [ed.] [DuPont, Wilmington, DE (United States)]; PB: 1464 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; PLASTICITY; CARBON STEELS; ALUMINIUM ALLOYS; BRONZE; TRANSITION TEMPERATURE; DEFORMATION; STRESSES

Citation Formats

Tsai, H C, Higashi, K, and Sherby, O D. Superplasticity in an ultrahigh carbon steel-aluminum bronze laminated composite. United States: N. p., 1993. Web.
Tsai, H C, Higashi, K, & Sherby, O D. Superplasticity in an ultrahigh carbon steel-aluminum bronze laminated composite. United States.
Tsai, H C, Higashi, K, and Sherby, O D. 1993. "Superplasticity in an ultrahigh carbon steel-aluminum bronze laminated composite". United States.
@article{osti_143698,
title = {Superplasticity in an ultrahigh carbon steel-aluminum bronze laminated composite},
author = {Tsai, H C and Higashi, K and Sherby, O D},
abstractNote = {Metal laminated composites based on ultrahigh carbon steel (UHCS) and aluminum bronze can be readily prepared by solid state bonding procedures at relatively low temperatures (670 to 700{degree}C). This is attributed to the fine grain size present in each component. No apparent interdiffusion occurs between the UHCS and aluminum bronze layers either during the solid state bonding steps or during superplastic flow below the transformation temperature of UHCS (770{degree}C). Interdiffusion does occur between the UHCS and aluminum bronze layers when the laminated composite is heated above 770{degree}C as a result of the dissolution of the iron carbides to form austenite. It is shown that a high strain-rate-sensitivity exponent (m = 0.5) can be achieved in the UHCS/bronze laminated composite at elevated temperatures (750 to 850{degree}C) and at low strain rates. High elongations are observed in the laminated composite under these conditions, with a maximum elongation of 650% noted at 750{degree}C. The UHCS/bronze laminated composite shows different mechanical characteristics from a UHCS/brass laminated composite. Brass readily cracks at elevated temperature and prevents the achievement of high elongations in a UHCS/brass composite even when the strain-rate-sensitivity is high. The aluminum bronze is fine-grained and does not form cracks during elevated temperature deformation.},
doi = {},
url = {https://www.osti.gov/biblio/143698}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Dec 31 00:00:00 EST 1993},
month = {Fri Dec 31 00:00:00 EST 1993}
}

Conference:
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