کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7968006 | 1514197 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic recrystallization during hot deformation of GH690 alloy: A study using processing maps
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
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چکیده انگلیسی
The hot deformation behavior of GH690 alloy is investigated in the temperature range of 950-1200 °C and a strain rate of 10â3sâ1 to 2 sâ1. It is found that the flow stress increases with strain, and then decreases as it reaches a peak flow stress. On the basis of the experiment data, processing maps are developed using the dynamic materials model (DMM). The processing maps exhibit two domains. One is the stable region occurring in the temperature range of 1120-1180 °C and the strain rate of 0.0325-0.447 sâ1, the other is the instability zone occurring in the temperature range of 950-1180 °C and the strain rate of 0.18-2 sâ1. Under the guidance of the processing maps, a rolling experiment is carried out, and it is found that the yield strength, ultimate tensile strength and elongation of the plate are 565 MPa, 685 MPa and 51.13% respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 448, Issues 1â3, May 2014, Pages 153-162
Journal: Journal of Nuclear Materials - Volume 448, Issues 1â3, May 2014, Pages 153-162
نویسندگان
H.T. Zhou, Q.Z. Peng, H.X. Yang, X. Zhou, R.R. Liu, Y. Peng, F.H. Zhong,