Effects of Thermo-Mechanical and Thermal Treatments on the Structure-Property Relationships of Dual Phase (DP) and Transformation-Induced Plasticity (TRIP) steels

Author

Matthew Leonard Jones

Issuing Body

Mississippi State University

Advisor

Horstemeyer, Mark

Committee Member

Rhee, Hongjoo

Committee Member

El Kadiri, Haitham

Date of Degree

12-15-2012

Document Type

Graduate Thesis - Open Access

Major

Mechanical Engineering

Degree Name

Master of Science (M.S.)

College

James Worth Bagley College of Engineering

Department

Department of Mechanical Engineering

Abstract

The investigation of thermo-mechanical and thermal treatments on the microstructure and mechanical behavior of DP590 and TRIP680 steels revealed several critical aspects of the materials’ responses to different testing. Various thermo-mechanical treatments were carried out to identify the responses to the said treatments. Following these preconditioning protocols, quasi-static, and high strain-rate tests showed how the materials reacted under tensile testing to fracture. Ensuing heat treatments on the as-received materials were performed to bring about phase fraction changes to each of the steels. These heat-treated DP and TRIP steels were examined to discover microstructural characteristics and mechanical responses through quasi-static and high strain-rate testing. The responses of the steels were analyzed and compared to the as-received testing results to observe the significant changes of mechanical behavior that occurred.

URI

https://hdl.handle.net/11668/19515

Recommended Citation

Jones, Matthew Leonard, "Effects of Thermo-Mechanical and Thermal Treatments on the Structure-Property Relationships of Dual Phase (DP) and Transformation-Induced Plasticity (TRIP) steels" (2012). Theses and Dissertations. 1811.
https://scholarsjunction.msstate.edu/td/1811