کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1691701 1011329 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of deep-cryogenic treatment on wear resistance of vacuum heat-treated HSS
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Influence of deep-cryogenic treatment on wear resistance of vacuum heat-treated HSS
چکیده انگلیسی

In this paper we compare the wear behaviour of a vacuum heat-treated ESR AISI M2 high-speed steel and the same steel that was vacuum heat treated in conjunction with a deep-cryogenic treatment at −196 °C. Four different tempering temperatures for the specimens austenized at the same austenitizing temperature were carefully selected to obtain various in-advance-determined combinations of the Rockwell-C hardness and the fracture toughness KIc. Each of the eight specimens was therefore characterised by these two resulting material properties. The wear behaviours were then compared and discussed in terms of these two properties and the related microstructures. The differences in the wear resistance obtained in our investigation were as high as an order of magnitude. However, the beneficial effects are not a direct result of the type of the treatment, but relate to a proper combination of the resulting fracture toughness and the hardness. The more uniform and moderate (but sufficiently high) values, which tend to be obtained with a deep-cryogenic treatment, are beneficial to the high wear resistance of the selected high-speed steel.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 80, Issue 6, 10 March 2006, Pages 507–518
نویسندگان
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