کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5013731 | 1462955 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analyses of the failures on shear cutting blades after trimming of ultra high-strength steel
ترجمه فارسی عنوان
تجزیه و تحلیل شکست در برش تیغه پس از برش فولاد فوق العاده با مقاومت بالا
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کلمات کلیدی
ابزار و شکست خوردن کار سرد تجزیه و تحلیل شکست متالورژی، ریز ساختارها،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
چکیده انگلیسی
Damages on shear cutting blades were analyzed after 50,000 strokes of trimming on an ultra high-strength steel sheet. Traditional D2 alloy and an advanced one (Cr08H) based on the composition of 1C-8Cr were quenched from 1030 °C, tempered at 180 °C and submitted to the shear cutting test. Cr08H had lower hardness, a smaller volume fraction of M7C3 carbides while it contained a larger volume fraction of retained austenite. And these resulted in more scratches and rounded edges because of degraded resistance to wear and local plastic deformation. In spite of higher impact toughness, Cr08H exhibited inferior resistance to chipping which was the consequence of localized brittle fracture. It could be concluded that this was caused by more transformation of austenite as well as by insufficiently hardened matrix, both of which were attributed to inappropriate conditions of the heat treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 71, January 2017, Pages 148-156
Journal: Engineering Failure Analysis - Volume 71, January 2017, Pages 148-156
نویسندگان
Dongmin Son, Hoyoung Kim, Jun-Yun Kang, Hyo Yun Yun, Jae-Jin Lee, Soon Keun Park, Tae-Ho Lee, Jehyun Lee,