Paper Title:
Lotus-Type Porous Nickel-Free Stainless Steel with High Temperature Nitriding
  Abstract

Lotus-type porous Fe-25wt.%Cr and Fe-23wt.%Cr-2wt.%Mo alloys were fabricated by continuous zone melting technique in pressurized hydrogen gas. After applying a high temperature nitriding treatment, the fabricated Lotus-type porous nickel-free stainless steel absorbed larger amount of nitrogen compared with non-porous alloy of the same composition since the surface area exposed to the gas is larger in the porous samples. In the Lotus-type porous Fe-25wt.%Cr and Fe-23wt.%Cr-2wt.%Mo alloys the nitrogen concentration after the nitriding achieved was approximately 1.2 wt.%. Only austenite peaks were detected in the profile of both Fe-Cr-N alloys after the nitriding treatment. Neither CrN nor Cr2N were identified by XRD in any specimen after the nitriding.

  Info
Periodical
Advanced Materials Research (Volumes 15-17)
Edited by
T. Chandra, K. Tsuzaki, M. Militzer and C. Ravindran
Pages
756-761
DOI
10.4028/www.scientific.net/AMR.15-17.756
Citation
K. Alvarez, S. K. Hyun, H. Nakajima, "Lotus-Type Porous Nickel-Free Stainless Steel with High Temperature Nitriding", Advanced Materials Research, Vols. 15-17, pp. 756-761, 2007
Online since
February 2006
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Price
$32.00
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