Paper Title:
Effect of Rare Earth Addition in Plasma Nitriding on Microstructure of Chromium Electro-Plating
  Abstract

As an active metal, chromium is easy to form oxides film on the surface, which acts as an obstacle to the nitrogen diffusion in plasma nitriding. Rare earth (RE) was introduced into the conventional plasma nitriding (CPN) to improve the nitriding behavior. Chromium coatings were treated by CPN and rare earth plasma nitriding (REPN) at 620°C for 5 and 10 hours respectively. Comparative study showed that the addition of RE prompted greatly the formation of higher nitrogen containing phase CrN, rather than Cr2N. It created a crack-free, much denser and thicker nitrides layer, which contributed to the increase of hardness. The dynamic ultra micro hardness of the samples treated by REPN was nearly 1600GPa, which was much higher than the original and the CPN treated samples. The conclusion could be drawn that compared to CPN, REPN are more efficient for chromium coating nitriding.

  Info
Periodical
Advanced Materials Research (Volumes 97-101)
Edited by
Zhengyi Jiang and Chunliang Zhang
Pages
1514-1517
DOI
10.4028/www.scientific.net/AMR.97-101.1514
Citation
J. W. Huang, D. S. Xiong, X. M. Fan, "Effect of Rare Earth Addition in Plasma Nitriding on Microstructure of Chromium Electro-Plating", Advanced Materials Research, Vols. 97-101, pp. 1514-1517, 2010
Online since
March 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chang Yong Choi, Dae Geun Nam
Abstract:Bipolar plate of stack in polymer electrolyte membrane fuel cell (PEMFC) has high cost and heavy weight. In this study, low carbon steel was...
753
Authors: Mohammad Reza Saghi Beyragh, Shahin Khameneh Asl, Rahim Vasfpour, Farshid Tazesh, Parisa Khallagi
Abstract:HVOF-sprayed coatings (WC–17%Co) and hard chromium coatings corrosion resistances have been compared through electrochemical polarization...
173
Authors: Saduman Sen, Ozkan Ozdemir, A. Sukran Demirkıran, Ugur Sen
Chapter 6: Surface Engineering
Abstract:Oxidation of chromium carbide coating formed on AISI 1040 steel deposited by thermo-reactive deposition method (TRD) has been realized by two...
649
Authors: Jolanta Baranowska, Paweł Kochmański, Jarosław Bielawski
Abstract:This paper presents results of investigations on gas nitride layers of stainless steel. Steel with ferritic structure, containing different...
297
Authors: Adisorn Buranawong, Nirun Witit-Anun
Chapter 2: Nanomaterials, Chemistry and Biochemistry of Materials, Chemical Technologies
Abstract:The CrN thin films were deposited on silicon (100) substrate using reactive magnetron sputtering technique. The films were characterized by...
57