کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1583200 1514878 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of cryogenic treatment on microstructure and abrasion resistance of CrMnB high-chromium cast iron subjected to sub-critical treatment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Effects of cryogenic treatment on microstructure and abrasion resistance of CrMnB high-chromium cast iron subjected to sub-critical treatment
چکیده انگلیسی

Effects of cryogenic treatment on the microstructure, and abrasion resistance of CrMnB high-chromium cast iron subjected to sub-critical treatment were investigated by optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and wear test. The results show that cryogenic treatment makes the alloy present a more refined and homogeneous matrix. In the course of sub-critical treatment followed by cryogenic treatment, the amount of precipitated secondary carbide was more than that in air cooling. Cryogenic treatment can further reduce the austenite content but cannot make retained austenite transform to martensite completely. After cryogenic treatment, the hardness and abrasion resistance of CrMnB high-chromium cast iron can be improved obviously due to the precipitation of carbides, the martensite transformation, and a refined microstructure resulting from cryogenics treatment.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 478, Issues 1–2, 15 April 2008, Pages 324–328
نویسندگان
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