کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7836555 | 1503542 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of nitrided-layer microstructure control on wear behavior of AISI H13 hot work die steel
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Gas nitriding has become a popular thermo-chemical surface treatment, which is being used to develop thermal/mechanical fatigue and wear characteristics of iron and steels. In this study, the gas nitriding of AISI H13 hot work die steel was carried out in flowing NH3 gas at 550 °C for 5-15 h. By adjusting the nitrogen potential ranging from 0.18 to 2.8, three types of nitrided surface layer consisting of ε-Fe2-3N and γâ²-Fe4N phases, γâ²-Fe4N single-phase, as well as the α-(Fe, N) phase had been prepared, respectively. The corresponding microstructure, hardness and thickness of the nitrided layer were systematically characterized. A contrastive analysis of influence of nitrided-layer microstructure control on wear behavior of AISI H13 hot work die steel was conducted. The nitrided surface layer consisting of ε-Fe2-3N and γâ²-Fe4N phases showed excellent wear resistance under loads of 100 N but poor wear properties at 300 N. The wear mechanism was revealed based on the microstructure characteristics, surface hardness and toughness of each nitrided surface layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 431, 15 February 2018, Pages 39-43
Journal: Applied Surface Science - Volume 431, 15 February 2018, Pages 39-43
نویسندگان
Bo Wang, Xingfeng Zhao, Wenzheng Li, Ming Qin, Jianfeng Gu,