M.S. (Master of Science)
Department of Mechanical Engineering
Mechanical engineering; Engineering
The hardness performance of LENS processed 316 Stainless Steel (SS) is investigated. Hardness performance of LENS processed 316 SS is important to identify its strength, resistance to wear, quality, failure control, predicting life time, determining proper applications and its evaluating performance. Rockwell Hardness test was performed at 100kgf load and 150kgf load respectively. A Finite element model was developed for the indentation process and obtain contact radius and contact pressure was verified with experimental results obtained from white light interferometry. The Rockwell hardness test was performed according to ASTM E18--17e1 test procedure and a Tungsten carbide indenter was used for the hardness test of Roll formed 316 SS and Additive manufactured 316 SS. The indentation process was simulated using ANSYS APDL software with different contact models and different loads. It was found that the hardness performance is affected by porosity, which is key factor in determining the hardness performance of the additive-manufactured samples.
Meka, Sri Sai Kartheek, "A preliminary investigation on hardness performance of LENS-processed 316 stainless steel (SS)" (2017). Graduate Research Theses & Dissertations. 480.
Northern Illinois University
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