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Study of the Effect of Hot Rolling Processing Parameters on the Variability of HSLA Steels

Garcia Gonzalez, Jose Enrique (2002) Study of the Effect of Hot Rolling Processing Parameters on the Variability of HSLA Steels. Master's Thesis, University of Pittsburgh. (Unpublished)

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Abstract

The effect of different hot mill processing parameters and their influence on the variability of mechanical properties of HSLA steels has been studied. This work presents an analysis of the relative contribution of the different hot mill processing parameters to the variability of HSLA steels. The experimental design includes variation of Reheating, Roughing, Finishing, and Coiling temperatures, as well as Cooling Rate through the austenite to ferrite transformation, and from coiling to room temperature. The variation in finishing and coiling temperature results in an average variation of 12% in mechanical properties. The variation of the cooling rate, through the austenite to ferrite transformation, and from coiling to room temperature, has the largest impact on the variability of microstructure and properties. A correlation between the various microstructural features, dislocation densities and precipitation behavior, with mechanical properties is presented.

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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Garcia Gonzalez, Jose Enriquejegst65@pitt.edu, enriquegarcia77@hotmail.comJEGST65
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairDeArdo, Anthony Jdeardo@engr.pitt.eduDEARDO
Committee CoChairGarcia, Calixto Igarcia@engr.pitt.eduCIGARCIA
Committee MemberNettleship, Iannettles@pitt.eduNETTLES
Date: 20 December 2002
Date Type: Completion
Defense Date: 22 November 2002
Approval Date: 20 December 2002
Submission Date: 3 December 2002
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Materials Science and Engineering
Degree: MSMSE - Master of Science in Materials Science and Engineering
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: APFIM; Clusters; Cooling Rate; Dislocation Density; Ferrite; Hot Rolling; HSLA steel; HSM Simulation; Nb-V steel; Precipitation Hardening; Strengthening Mechanisms; Variability
Other ID: http://etd.library.pitt.edu:80/ETD/available/etd-12032002-161350/, etd-12032002-161350
Date Deposited: 10 Nov 2011 20:07
Last Modified: 15 Nov 2016 13:52
URI: http://d-scholarship.pitt.edu/id/eprint/9975

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