کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1507607 1511055 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Internal friction measurements of phase transformations during the process of deep cryogenic treatment of a tool steel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Internal friction measurements of phase transformations during the process of deep cryogenic treatment of a tool steel
چکیده انگلیسی
This paper reports internal friction measurements in die steel with the aim of clarifying phase transformation mechanisms during deep cryogenic treatment (DCT). Internal friction peaks appeared in the quenched sample and the DCT treated material during the process of cooling down to −160 °C from room temperature (20 °C) and then heating up to room temperature for multiple cycles in high vacuum. However, internal friction peaks do not appear in annealed material. It is concluded that the internal friction peaks are attributed to stress-induced martensite formation based on thermal hysteresis phenomena. That is, retained austenite is mostly transformed into martensite during the DCT.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryogenics - Volume 57, October 2013, Pages 1-5
نویسندگان
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