کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10418080 | 902650 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characteristics of adiabatic shear bands in the orthogonal, cutting of 30CrNi3MoV steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
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چکیده انگلیسی
The fine structure of the adiabatic shear band (ASB) in the serrated chips of low alloy steel 30CrNi3MoV under orthogonal cutting conditions was observed by means of SEM and TEM. Microhardness measurement was performed on the ASBs. The results show that the structure between the center of the ASB and matrix is different. The average microhardness values in the shear band exceeded quenched martensite hardness. In the central region of the ASB, the recrystallization microstructure which consists mainly of martensite, Ï-Fe5C2, F3C and austenite was observed. In the transitional region between the center of the ASB and the matrix, the large deformed microstructure was observed and a large amount of dislocations was found on the boundaries of martensite laths. Investigative results indicate that dynamic recrystallization and martensite phase transformation took place in the ASB. The ASBs formed in orthogonal cutting may be classified as transformation bands.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 168, Issue 1, 15 September 2005, Pages 102-106
Journal: Journal of Materials Processing Technology - Volume 168, Issue 1, 15 September 2005, Pages 102-106
نویسندگان
C.Z. Duan, M.J. Wang,