کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7975474 1514680 2016 42 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Role of hard martensite phase prior to cold-rolling on microstructure evolution after annealing in ferritic stainless steel
ترجمه فارسی عنوان
نقش فاز مارتنزیت سخت قبل از نورد سرد بر تکامل ریزساختار پس از خاتمه در فولاد ضد زنگ فریت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
To improve the surface quality of 16mass%Cr ferritic stainless steel sheets processed by cold-rolling and subsequent annealing, the role of the hard martensite phase, in particular, the hardness ratio k between martensite and ferrite prior to cold-rolling on microstructure evolution was investigated by varying the k value through tempering specimens at different temperatures after intercritical annealing. In the specimen with the high ratio k (k>2.0), the heterogeneous deformation in ferrite around the hard martensite becomes prominent and the areas with the high KAM value are locally limited with less development of cold-rolling texture. The specimen with the small ratio k (k<2.0), however, shows rather uniform deformation structure, because tempered martensite deforms easily. Therefore, the recrystallized grain with the specimen k>2.0 becomes fine, because the presence of hard martensite provides the nucleation site of recrystallization leading to fragmenting the elongated {100}<011>colony structure, and the orientation is randomized. Consequently, the presence of the hard martensite phase prior to cold-rolling is effective for preventing the ridging of ferritic stainless steel sheets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 663, 29 April 2016, Pages 86-97
نویسندگان
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