Master of Science (MS)
First Committee Member
Ajit K. Roy
Number of Pages
The results of tensile testing involving austenitic Alloy C-276 indicated that this material is capable of maintaining adequate structural strength at temperatures relevant to the H2SO4 decomposition process related to the nuclear hydrogen generation. This alloy exhibited a unique phenomenon known as dynamic strain aging, which has been studied as a function of both temperature and strain rate. An average value of 55 KJ/mole has been determined to be the activation energy for plastic deformation under tensile loading at different temperatures. Increased crack extension was observed in wedge-loaded double-cantilever-beam specimens exposed to an acidic solution and subjected to higher initial stress intensity factor values. The self-loaded specimens did not exhibit cracking in the same environment. Ductile failures were observed at temperatures up to 600Ã‚Â°C. However, intergranular brittle failures were observed at higher temperatures.
Alloy; Crack; Fracture; Growth; Properties; Study; Tensile; Toughness
Mechanical engineering; Materials science
University of Nevada, Las Vegas
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Pal, Joydeep, "Tensile properties, fracture toughness and crack growth study of alloy C-276" (2006). UNLV Retrospective Theses & Dissertations. 2067.