کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9953699 | 1645992 | 2019 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hardness measurement of surfaces on hybrid metal matrix composite created by turning using an abrasive water jet and WED
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The paper deals with microhardness measurement up to a depth of 3â¯Î¼m on hybrid metal matrix composite A359/Al2O3/B4C from the surface created by wire electric discharge turning and abrasive waterjet turning at the same of a range of rotational speed. The study also includes the topographical and morphological aspects of measurements to compare the surface quality. The microhardness was measured by Vickers indentation test at a load of 100â¯g for 10â¯s. Surface roughness profile parameters (Ra, Rq and Rz), and 3D surface visualisation were measured by an optical profilometry. Laser confocal microscope was used to characterize the topographical details. FE-SEM analysis was used to discuss the morphological observations and to explore the quality and defects of the machined surfaces. The sub-surface element like residual stresses is also investigated through the depth profile for both types of turning process by means of XRD machine. The results showed that a lower value of microhardness (165â¯HV) as compared to cast sample (200â¯HV) has been observed in the recast layer of wire electrical discharge turning along with induction of tensile residual stress (340â¯MPa). During abrasive water jet turning a nominal change in microhardness (204â¯HV) along with compressive residual stress (â285â¯MPa) was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 131, January 2019, Pages 628-639
Journal: Measurement - Volume 131, January 2019, Pages 628-639
نویسندگان
Ashish Kumar Srivastava, Akash Nag, Amit Rai Dixit, Jiri Scucka, Sergej Hloch, Dagmar Klichová, Petr HlaváÄek, Sandeep Tiwari,