کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8028741 | 1517641 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of the anisotropic growth on the fracture toughness measurements obtained in the Fe2B layer
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, the fracture toughness of the Fe2B layer was estimated using the Berkovich indentation technique. Boron diffusion at the surface of the AISI 1018 steel was conducted using a powder-pack boriding process at a temperature of 1273Â K with 6Â h of exposure. The mechanical characterization of the Fe2B layer was performed on three different distances from the surface using a range of indentation loads (10 to 500Â mN) for each distance. The behavior of the hardness as a function of the indentation load showed the presence of the indentation size effect (ISE) at the different distances from the surface, in which the apparent or real hardness was estimated according to the concept of the Nix and Gao model. Finally, two indentation-cracking models were used to estimate the fracture toughness of the Fe2B layer on the different distances from the surface; the results were ranged from 1.5 to 4.2 MPa m1/2, which denoted the brittleness and the influence of the anisotropic nature of the boride layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 237, 25 December 2013, Pages 292-298
Journal: Surface and Coatings Technology - Volume 237, 25 December 2013, Pages 292-298
نویسندگان
E. Hernández-Sanchez, G. Rodriguez-Castro, A. Meneses-Amador, D. Bravo-Bárcenas, I. Arzate-Vazquez, H. MartÃnez-Gutiérrez, M. Romero-Romo, I. Campos-Silva,