Assessment of Cavitation Erosion of Gas-Nitrided Cr-Ni-Mo Steels-Reference-Cited by-同舟云学术

Assessment of Cavitation Erosion of Gas-Nitrided Cr-Ni-Mo Steels

Published:2018-05-21 Issue:6 Volume:140 Page:
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Mitelea Ion¹,Ghera Cristian¹,Bordeaşu Ilare²,Crăciunescu Corneliu¹

Affiliation:

1. Department of Materials and Manufacturing Engineering, Politehnica University Timisoara, Bd. Mihai Viteazul No.1, Timisoara 300222, Romania e-mail:

2. Mechanical Machines, Equipment and Transportation, Politehnica University Timisoara, Bd. Mihai Viteazul No.1, Timisoara 300222, Romania e-mail:

Abstract

The effect of the gas-nitriding thermochemical treatment on the cavitation erosion resistance of a Cr-Ni-Mo alloy is analyzed using a piezoceramic vibrating equipment and following the ASTM G32-2010 standard. The evaluation of the cavitation erosion behavior was made based on the analysis of the mean depth of erosion (MDE) and mean depth of erosion rate (MDER), for samples subjected to the cavitation erosion for different times. The surface topography and the structural changes in the marginal layer were analyzed through optical and scanning electron microscopy. Following nitriding the cavitation erosion resistance was about 9.6 times higher compared to the annealed state and about 8.2 times higher compared to the hardened and tempered state.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/doi/10.1115/1.4039133/6293378/trib_140_06_061601.pdf

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