0
research-article

ASSESSMENT OF CAVITATION ERROSION OF GAS-NITRIDED Cr-Ni-Mo STEELS

[+] Author and Article Information
Ion Mitelea

Politehnica Universty Timisoara, Bd. Mihai Viteazul No.1, 300222 Timisoara, Romania
ion.mitelea@upt.ro

Cristian Ghera

Politehnica Universty Timisoara, Bd. Mihai Viteazul No.1, 300222 Timisoara, Romania
cghera@yahoo.com

Ilare Bordeasu

Politehnica Universty Timisoara, Bd. Mihai Viteazul No.1, 300222 Timisoara, Romania
ilarica59@gmail.com

Corneliu Craciunescu

Politehnica Universty Timisoara, Bd. Mihai Viteazul No.1, 300222 Timisoara, Romania
corneliu.craciunescu@upt.ro

1Corresponding author.

ASME doi:10.1115/1.4039133 History: Received January 29, 2017; Revised December 21, 2017

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 behaviour 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.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In