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Fall 2019
An evaluation of the resistance of two different X70 pipeline steels to hydrogen-induced cracking in severe (pH 2.7 and 1 atm H2S) and intermediate (pH 5.5 and 1 atm H2S) sour service conditions was undertaken. The two steels used in this work, X70-X and X70-B, were selected based on their...
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Spring 2015
Traditionally in pipeline steels and welds, ultrasonic testing (UT) has been used for crack and/or flaw detection. The work presented in this Thesis explores the use of this technique to characterize the microstructure of pipe steels. Ultrasonic velocity calculations, for shear and longitudinal...
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Spring 2020
ML80 and Grade 483 are heat treatable steels, produced by a quench and temper process, that are used in the oil and gas industry. The development of the microstructure during heat treatment is important to ensure that the correct properties are achieved for these steels. However, a real-time...