کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1573962 1514696 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structure-mechanical property relationship in a low-C medium-Mn ultrahigh strength heavy plate steel with austenite-martensite submicro-laminate structure
ترجمه فارسی عنوان
رابطه ساختار-مکانیکی مواد در یک فولاد با ورق فولادی سنگین با قدرت بالا با توان بالا با کمترین درجه سانتیگراد با ساختار ورقه زیر ساختاری آستنیت مارتنزیت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
We elucidate structure-property relationship in a 0.1C-5Mn-0.4Mo hot rolled steel that was directly water-quenched and intercritically tempered at 650 °C. Tempering in the intercritical region for optimum time was critical in obtaining elongation of 25.0% and reduction in area of 65.4%. Moreover, the tensile strength was 875 MPa and the impact energy at test temperature of −60 °C was significantly high at 165.3 J. The microstructure of water-quenched steel consisted of lath martensite, needle-shaped cementite, and about 1% retained austenite. The superior combination of strength, ductility, and toughness subjected to tempering for optimal time of 30 min is attributed to the dissolution of cementite, recovery of martensitic structure, and formation of approximately 13% reversed austenite with appropriate mechanical stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 647, 28 October 2015, Pages 144-151
نویسندگان
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