Effect of Aging on Mechanical Properties of S465 Stainless Steel
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 1
Abstract
Applications requiring high strength stainless steels are growing rapidly. Precipitation hardened stainless steels have been limited usage in powder metallurgy despite their high strength. It is possible to induce strengthening and precipitation hardening in austenitic and martensitic stainless steels byadding suitable alloying elements such as copper, niobium which forms intermetallic precipitates during aging. The present work is focused on influence of titanium on mechanical behavior of precipitation hardened stainless steels.The precipitation hardened stainless are basic material for the high strength applications. Heat treatment processes such as solution annealing followed by aging were conduct to enhance mechanical properties like hardness and tensile properties. The solution annealing was carried out at 9500C for all samples. Aging was carried out at different temperatures from 5000C-6000C and soaked for regular intervals of time. Mechanical properties were observed by Micro hardness testing equipment and Universal testing machine (UTM). Then the samples were examined by Optical microscope and Scanning electron microscope.It is observed that during peak aging period the size of the precipitates are enough to hold the dislocation tightly. Thus hardness and strength are increased.
Authors and Affiliations
P. Narendra Babu, M. V. N. V. Satyanarayana, M. GunaSekhar Reddy
Keywords
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