کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
833588 908147 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Design of a spheroidization processing for ultrahigh carbon steels containing Al
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Design of a spheroidization processing for ultrahigh carbon steels containing Al
چکیده انگلیسی

A spheroidization processing has been designed for the forged ultrahigh carbon steels (UHCSs) containing Al, in which the mechanism of the divorced eutectoid transformation is applied. Guided by the CALPHAD calculations, the processing is carried out by two periods consisting of austenization at an intermediate temperature in the three-phase(γ + α + cementite)-zone and then isothermal annealing at a temperature a little lower than the critical temperature at which the austenite decomposes completely. The desired microstructure with the fine spheroidal carbides dispersed on the ferrite matrix has been observed, and the well combined mechanical properties, such as the tensile strength Sb = 1050 MPa, the yield strength Ss = 740 MPa, the elongation ratio δ5 = 14% and the reduction of cross-section ψ = 22%, are achieved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 28, Issue 2, 2007, Pages 562–568
نویسندگان
, , ,