کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1584973 1514908 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The refinement technology for bainite and its application
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
The refinement technology for bainite and its application
چکیده انگلیسی

The relaxation–precipitation-controlled phase transformation technique to refine the bainite has been simulated on a Gleeble-1500 thermo-simulator. This technique has also been applied in large-scale production. Optical and scanning and transmission electron microscopy as well as particle-tracking autoradiography techniques were employed to study the precipitation, and the dislocation configuration during the relaxation. The microstructure and the boron distribution were also investigated. The results show that during the relaxation subgrains can form inside the austenite grains and boron can segregate at the boundaries of subgrains. The subgrains pinned up by strain-induced precipitates, and acicular ferrite firstly formed inside the austenite grains can effectively refine the subsequently formed lathes and packet of bainite. This ultra fine microstructure has also been obtained in the large-scale production.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 438–440, 25 November 2006, Pages 162–165
نویسندگان
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