کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1581915 | 1514865 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Tensile properties of a nickel-base alloy subjected to surface severe plastic deformation Tensile properties of a nickel-base alloy subjected to surface severe plastic deformation](/preview/png/1581915.png)
A surface severe plastic deformation (S2PD) method has been applied to bulk specimens of HASTELLOY® C-2000 alloy, a nickel-base alloy. The mechanical properties of the processed C-2000 alloy were determined via tensile tests and Vickers hardness measurements, whereas the microstructure was characterized using scanning electron microscopy, transmission electron microscopy, and X-ray diffractometry. The improved tensile strength was related to the nanostructure at the surface region, the residual compressive stresses, and the work-hardened surface layer, all of which resulted from the S2PD process. To understand the contributions of these three factors, finite element modeling was performed. It was found that the improved tensile strength could be interpreted based on the contributions of nano-grains, residual stresses, and work hardening.
Journal: Materials Science and Engineering: A - Volume 493, Issues 1–2, 15 October 2008, Pages 176–183