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Hardness measurement of surfaces on hybrid metal matrix composite created by turning using an abrasive water jet and WED
- 1.0502694 - ÚGN 2020 RIV GB eng J - Článek v odborném periodiku
Srivastava, A. K. - Nag, A. - Dixit, A. R. - Ščučka, Jiří - Hloch, Sergej - Klichová, Dagmar - Hlaváček, Petr - Tiwari, S.
Hardness measurement of surfaces on hybrid metal matrix composite created by turning using an abrasive water jet and WED.
Measurement. Roč. 131, January 2019 (2019), s. 628-639. ISSN 0263-2241. E-ISSN 1873-412X
Grant CEP: GA MŠMT(CZ) LO1406
Institucionální podpora: RVO:68145535
Klíčová slova: microhardness * surface topography * surface roughness * surface morphology * abrasive water jet turning * wire electric discharge turning
Obor OECD: Mechanical engineering
Impakt faktor: 3.364, rok: 2019
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S0263224118308558
The paper deals with microhardness measurement up to a depth of 3 mu m 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 100 g for 10 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 (165 HV) as compared to cast sample (200 HV) has been observed in the recast layer of wire electrical discharge turning along with induction of tensile residual stress (340 MPa). During abrasive water jet turning a nominal change in microhardness (204 HV) along with compressive residual stress (-285 MPa) was observed.
Trvalý link: http://hdl.handle.net/11104/0294605
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