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Title of Journal: Sci China Technol Sci

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Abbravation: Science China Technological Sciences

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Science China Press

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10.1007/s13209-015-0134-1

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1869-1900

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The hydroabrasive erosion wear behavior of duplex

Authors: Mumin Tutar Hakan Aydin Ali Durmus Ali Bayram Kurtulus Yigit
Publish Date: 2014/03/26
Volume: 57, Issue: 5, Pages: 1040-1051
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Abstract

The influence of duplex surface treatments consisting of a DCpulsed plasma nitriding process and subsequent coatings of CrN and TiAlN deposited by physical vapor deposition PVD on AISI H13 tool steel was studied in this article The treated samples were characterized using metallographic techniques SEM EDS and microhardness methods Hydroabrasive erosion wear tests were performed in a specifically designed wear tester in which the samples were rotated in a wear tank containing a mixture of distilled water and ceramic abrasive chips with a fixed rotational speed The wear rates caused by the abrasive particle impacts were assessed based on accumulated weight loss measurements The worn surfaces were also characterized using optical microscopy SEM and EDS Microhardness measurements indicated a significant increase in the surface hardness of the duplextreated samples The surfaces of the samples with the TiAlN coating were approximately 15 times harder than that of the untreated samples and 3 times that of the plasma nitrided samples Hydroabrasive erosion wear results showed that the duplex surface treatments especially the CrN coating displayed the highest erosion wear resistance

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