کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8004143 | 1516575 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Correlation of isothermal bainite transformation and austenite stability in quenching and partitioning steels
ترجمه فارسی عنوان
همبستگی تحول باینیت ایزوترمال و پایداری آستنیت در فولادهای خنک کننده و پارتیشن بندی
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کلمات کلیدی
تبدیل باینیت، تجزیه ایزوترمال، آستنیت باقیمانده، فولاد خشک کردن و پارتیشن بندی جداسازی کربن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
The possible decomposition of metastable austenite during the partitioning process in the high-end quenching and partitioning (Q&P) steels is somewhat neglected by most researchers. The effects of primary martensite and alloying elements including manganese, cobalt and aluminum on the isothermal decomposition of austenite during typical Q&P process were studied by dilatometry. The transformation kinetics was studied systematically and resulting microstructures were discussed in details. The results suggested that the primary martensite decreased the incubation period of isothermal decomposition by accelerating the nucleation process owing to dislocations especially on phase and grain boundaries. This effect can be eliminated by a flash heating which recovered dislocations. Co addition significantly promoted the bainite transformation during partitioning while Al and Mn suppressed the isothermal bainite transformation. The bainite transformation played an important role in carbon distribution during partitioning, and hence the amount and stability of austenite upon final quenching. The bainite transformation during partitioning is an important factor in optimizing the microstructure in Q&P steels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Iron and Steel Research, International - Volume 24, Issue 11, November 2017, Pages 1095-1103
Journal: Journal of Iron and Steel Research, International - Volume 24, Issue 11, November 2017, Pages 1095-1103
نویسندگان
Shan Chen, Guang-zhen Wang, Chun Liu, Chen-chong Wang, Xian-ming Zhao, Wei Xu,