کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11263151 1777901 2019 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on effect of double austenitization treatment on fracture morphology tensile tested nuclear grade P92 steel
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Study on effect of double austenitization treatment on fracture morphology tensile tested nuclear grade P92 steel
چکیده انگلیسی
Effect of 'conventional normalizing and tempering' (CNT) and 'double austenitization based normalizing and tempering' (DNT) process on microstructure characteristic and mechanical behavior was studied forP92 steel. In CNT heat treatment, P92 steel is normalized at 1040 °C/air cool and tempered with 760 °C/2 h/air cool. In DNT heat treatment, initially normalizing was performed at 1040 °C for 1 h followed by water quenching. After that sample was normalized in the temperature range of 950-1150 °C for 1 h and tempered at 760 °C/2 h/air cool (950 °C-DNT1, 1050 °C-DNT2, 1150 °C-DNT3).Grain size for CNT and DNT1 treatment were measured 17 ± 7 μm and 12 ± 5 μm. A DNT treatment resulted in homogeneous microstructure formation that led to improved mechanical properties as compared to CNT treatment. The DN based heat treatment produced complete martensitic microstructure formation by complete dissolution of carbide precipitates. The optimized room temperature condition was obtained for the DNT 1 heat treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 96, February 2019, Pages 158-167
نویسندگان
, , , , , , ,