چکیده مقاله
Toughness is the important mechanical properties of material that is a measure of the ability of a material to absorb energy up to fracture in dynamic loading and high strain rate conditions For a material to be tough it must display both strength and ductility; and often, ductile materials are tougher than brittle ones Impact tests are an almost direct measurement of toughness that charpy test is a popular test for this purpose In this paper this type of test was used to predict the toughness of carbon steel The influence of microstructural properties consists of type of phase structures and grain size resulted of heat treatment on toughness has been investigated using this study Indeed effects of heat treatment parameters such as cooling rate and annealing condition temperature and time on toughness studied Results obtained from impact tests show that the cooling rate from austenite temperature is the most important parameter on toughness, as the material toughness decreases with increasing the cooling rate Toughness of this material decreases with increasing the holding time and temperature of annealing process
کلیدواژهها
نویسندگان
H.R Rezaei Ashtiani
School of Mechanical Engineering Department of Manufacturing, Arak University of Technology, Arak, Iran
M Atefi
School of Mechanical Engineering Department of Solid Mechanics, Iran University Science and Technology, Arak, Iran
شیوه ارجاع
Rezaei Ashtiani, H.R and Atefi, M,1390,Toughness variation of carbon steels using heat treatment,12th Iranian Conference on Manufacturing Engineering (ICME 2010),Tehran
ارائهشده در
مجموعه مقالات دوازدهمین کنفرانس ملی مهندسی ساخت و تولید ایران6 دی 1390 · تهران