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An Investigation of the Suitability of Using AISI 1117 Carbon Steel in a Quench and Self-tempering Process to Satisfy ASTM A 706 Standard of Rebar

Experiments were conducted to investigate the potential of using a quench and self-tempering heat treatment process with AISI 1117 steel to satisfy the mechanical properties of ASTM A 706 rebar. A series of quenching tests were performed and the resulting microstructure and mechanical properties studied using optical microscopy, microhardness measurement, and tensile tests. The presence of martensite throughout the samples contributed to the enhanced strength and strain-hardening ratio (tensile to yield strength) of the material. The experimental results showed that AISI 1117 is capable of meeting the ASTM standard. In addition to the experiments, a computer model using the finite difference method and incorporating heat transfer and microstructure evolution was developed to assist in future optimization of the heat treatment process.

Identiferoai:union.ndltd.org:TORONTO/oai:tspace.library.utoronto.ca:1807/29466
Date11 August 2011
CreatorsAllen, Matthew
ContributorsWang, Zhirui
Source SetsUniversity of Toronto
Languageen_ca
Detected LanguageEnglish
TypeThesis

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