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The Microstructure, Hardness, Impact Toughness, Tensile Deformation and Final Fracture Behavior of Four Specialty High Strength Steels

Kannan, Manigandan
http://rave.ohiolink.edu/etdc/view?acc_num=akron1311884520

Abstract Details

2011, Master of Science, University of Akron, Mechanical Engineering.
The history of steel dates back to the 17th century and has been instrumental in the betterment of every aspect of our lives ever since, from the pin that holds the paper together to the automobile that takes us to our destination steel touch everyone every day. Pathbreaking improvements in manufacturing techniques, access to advanced machinery and understanding of factors like heat treatment and corrosion resistance have aided in the advancement in the properties of steel in the last few years. This thesis report will attempt to elaborate upon the specific influence of composition, microstructure, and secondary processing techniques on both the static (uni-axial tensile) and dynamic (impact) properties of the four high strength steels AerMet®100, PremoMetTM290, 300M and TenaxTM 310. The steels were manufactured and marketed for commercial use by CARPENTER TECHNOLOGY, Inc (Reading, PA, USA). The specific heat treatment given to the candidate steels determines its microstructure and resultant mechanical properties spanning both static and dynamic. Test specimens of the steels were precision machined and conformed to standards specified and prescribed by the American Society for Testing Materials (ASTM) for both tensile tests and Charpy V-Notch impact tests. Based on similarity of the secondary processing technique the candidate specialty steels were divided into two groups: (i) AerMet®100 and PremoMetTM290, (ii) 300M and TenaxTM310. The impact toughness response and resultant fracture behavior of the steels were studied at different temperatures ranging from -180°C to +170°C. Tensile tests were performed at room temperature and the final fracture behavior of the candidate steel was established at both the macroscopic and fine microscopic levels. The intrinsic microscopic mechanisms governing the impact toughness, quasi static deformation and final fracture behavior of each of the chosen high strength steels will be elaborated upon in light of the conjoint and mutually interactive influences of composition, intrinsic microstructural effects, and nature of loading.
Dr Tirumalai Srivatsan, PhD (Advisor)
Craig C. Menzemer, Dr. (Committee Member)
Gregory Morscher, Dr. (Committee Member)
111 p.
Mechanical Engineering
Microstructure; high strength steels; steels; tensile; impact test

Recommended Citations

Citations

  • Kannan, M. (2011). The Microstructure, Hardness, Impact Toughness, Tensile Deformation and Final Fracture Behavior of Four Specialty High Strength Steels [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1311884520

    APA Style (7th edition)

  • Kannan, Manigandan. The Microstructure, Hardness, Impact Toughness, Tensile Deformation and Final Fracture Behavior of Four Specialty High Strength Steels. 2011. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1311884520.

    MLA Style (8th edition)

  • Kannan, Manigandan. "The Microstructure, Hardness, Impact Toughness, Tensile Deformation and Final Fracture Behavior of Four Specialty High Strength Steels." Master's thesis, University of Akron, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1311884520

    Chicago Manual of Style (17th edition)

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© 2011, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.