Paper Title:
Numerical Analysis and Control of Gas Carburizing under Changes in Gas Compositions
  Abstract

Low carbon steel, S15CK, was carburized at 1203K up to 12.93ks in a commercial furnace where RX gas converted from propane was employed as carrier gas. Gas compositions in the furnace were changed intentionally; consequently carbon potential changed from 0.8 to 1.2 mass%. The carbon content profiles were determined by a succession of grindings and carbon analyses of the ground surfaces with a vacuum type emission spectrometer. A mathematical model for calculation of carbon content profiles is proposed to describe carburizing behavior under time-variant gas compositions in a furnace. The calculated profiles were in good agreement with the experimental ones except the surface and its vicinity. This result indicates that the present model can be applied to gas carburizing in the furnace where gas compositions were changed.

  Info
Periodical
Materials Science Forum (Volumes 522-523)
Edited by
Shigeji Taniguchi, Toshio Maruyama, Masayuki Yoshiba, Nobuo Otsuka and Yuuzou Kawahara
Pages
589-594
DOI
10.4028/www.scientific.net/MSF.522-523.589
Citation
Y. Yokoyama, T. Mizukoshi, I. Ishigami, T. Usui, "Numerical Analysis and Control of Gas Carburizing under Changes in Gas Compositions", Materials Science Forum, Vols. 522-523, pp. 589-594, 2006
Online since
August 2006
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: Masahiro Okumiya, Satoshi Hagi, Kazuya Orita, Yoshiki Tsunekawa, Yoshito Umeda, Takayuki Nagai
Abstract:Acetylene and ethylene are frequently used in vacuum carburizing in Japan. In this study the natural gas which is available from the...
97
Authors: Sorin Adrian Barabas, Adriana Florescu, Gavrilă Calefariu, Flavius Sarbu
Chapter 4: Mechanical Processing of Materials
Abstract:Parametric optimization model was made by now for abrasive water jet process, only for materials with uniform hardness. Pieces, subject to...
293
Authors: Chokchai Singhatham, Krittee Eidhed
Chapter 1: Sustainable Engineering and Innovative Technologies
Abstract:This paper presents the effect of carburizing phenomena on the microstructure and weldability of tube coils in the ethylene heating furnace....
39