کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5023786 1470257 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A high performance martensitic stainless steel containing 1.5 wt% Si
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
A high performance martensitic stainless steel containing 1.5 wt% Si
چکیده انگلیسی
Usually, martensitic precipitation hardening stainless steels (MPHSSs) contain ultralow carbon concentration to ensure its high performance in corrosion resistance, weldability and toughness. Meanwhile, high content of alloy elements (such as Mo, Ni, Ti and Cu) is inevitably added in order to obtain superb strength by precipitation hardening. In this work, a new idea of alloying design in stainless steels has been proposed, in which carbon serves as the main strengthening element and high silicon concentration (1.5 wt%) is used to suppress carbide precipitation and coarsening during tempering. A steel with composition of Fe-0.2C-15Cr-3Ni-1.5Si-1.0Mn has been designed and prepared, and its excellent mechanical performance (ultimate tensile strength of 1680 MPa, total elongation of 16%), pitting corrosion resistance and weldability have been displayed. Moreover only low-cost alloying components and ordinary treatments are needed to obtain those outstanding properties which are comparable to commercialized MPHSSs (such as 17-4 PH, PH 13-8 Mo).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 125, 5 July 2017, Pages 35-45
نویسندگان
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