The Effects of Hot Tear Segregations on the Rolled Product Quality of Continuously Cast Steel
- سال انتشار: 1392
- محل انتشار: مجله ی بین المللی انجمن آهن و فولاد ایران، دوره: 10، شماره: 2
- کد COI اختصاصی: JR_ISSIRAN-10-2_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 141
نویسندگان
Department of Metals, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, POBOX ۷۶۳۱۵-۱۱۵, Kerman, Iran.
Department of Metals, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, POBOX ۷۶۳۱۵-۱۱۵, Kerman, Iran.
چکیده
The main objective of this project was to investigate the behavior and the damaging effects of hot tear segregations in the continuously cast steel blooms on the final product quality. To achieve this aim, plant data from three different types of steels were used. Investigations using the scanning electron microscope (SEM) equipped with energy dispersive x-ray spectroscopy (EDS) probe and metallographic techniques showed that during the subsequent stages of the cast products, the hot tear segregations were transformed into spherical shapes, joined to each other and moved toward the surface. Also, it was observed that hot tear segregations affected the final product quality in two ways: (۱) they could cause uneven surfaces in the final products, and (۲) if they reached the surface in a line oriented pattern, they could make a surface crack. The hot tear segregations located near the surface could be crushed to the smaller ones during the rolling. This phenomenon made hot tear segregations less destructive.کلیدواژه ها
Microanalysis, Steel, Continuous casting, Hot tear, Surface crackاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.