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Case Western Reserve University

1. Hsu, Jui-Po. Influence of Low-Temperature Carburization on Fatigue Crack Growth of Austenitic Stainless Steel 316L.

Degree: MSs, Materials Science and Engineering, 2008, Case Western Reserve University

A series of horizontal fatigue tests were performed in air or NaCl solution at room temperature on a 316L type austenitic stainless steel according to ASTM E647-93, “Standard test method for measurement of fatigue crack growth rates”. Direct observation of the carburization effect on fatigue crack growth in air was made on low-temperature carburized and non-carburized specimens under cyclic uniaxial tension. The threshold stress intensity factor range (¿<i>K</i>th) increases from 8.1 ± 0.3 to 10.0 ± 0.3 MPavm after low-temperature carburizing, a 23% improvement in retarding crack growth initiation. The resistance to fatigue crack propagation is also improved by decreasing the fatigue crack growth rate at a given value of the stress intensity factor range (¿<i>K</i> ). Fatigue results in NaCl solution indicate that carburization process does not change the resistance to corrosion fatigue. In addition, SEM fractographic investigation shows no obvious significant difference on fracture mechanisms observed in carburized and non-carburized specimens. Advisors/Committee Members: Heuer, Arthur (Committee Chair).

Subjects/Keywords: Materials Science; 316L; fatigue; fatigue crack growth rate; WOL; FCGR; low-temperature carburization; LTCSS

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APA (6th Edition):

Hsu, J. (2008). Influence of Low-Temperature Carburization on Fatigue Crack Growth of Austenitic Stainless Steel 316L. (Masters Thesis). Case Western Reserve University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=case1212689690

Chicago Manual of Style (16th Edition):

Hsu, Jui-Po. “Influence of Low-Temperature Carburization on Fatigue Crack Growth of Austenitic Stainless Steel 316L.” 2008. Masters Thesis, Case Western Reserve University. Accessed July 17, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1212689690.

MLA Handbook (7th Edition):

Hsu, Jui-Po. “Influence of Low-Temperature Carburization on Fatigue Crack Growth of Austenitic Stainless Steel 316L.” 2008. Web. 17 Jul 2019.

Vancouver:

Hsu J. Influence of Low-Temperature Carburization on Fatigue Crack Growth of Austenitic Stainless Steel 316L. [Internet] [Masters thesis]. Case Western Reserve University; 2008. [cited 2019 Jul 17]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1212689690.

Council of Science Editors:

Hsu J. Influence of Low-Temperature Carburization on Fatigue Crack Growth of Austenitic Stainless Steel 316L. [Masters Thesis]. Case Western Reserve University; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1212689690

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