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Title: Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17

Abstract

The crown wheel and pinion represent the most highly stressed parts of a heavy vehicle; these are typically made of 815M17 steel. The reasons for the frequent failure of these components are due to tooth bending impact, wear and fatigue. The modern processes employed to produce these as high, durable components include cryogenic treatment as well as conventional heat treatment. It helps to convert retained austenite into martensite as well as promote carbide precipitation. This paper deals with the influence of cryogenic treatment on the tensile behavior of case carburized steel 815M17. The impetus for studying the tensile properties of gear steels is to ensure that steels used in gears have sufficient tensile strength to prevent failure when gears are subjected to tensile or fatigue loads, and to provide basic design information on the strength of 815M17 steel. A comparative study on the effects of deep cryogenic treatment (DCT), shallow cryogenic treatment (SCT) and conventional heat treatment (CHT) was made by means of tension testing. This test was conducted as per ASTM standard designation E 8M. The present results confirm that the tensile behavior is marginally reduced after cryogenic treatment (i.e. both shallow and deep cryogenic treatment) for 815M17 whenmore » compared with conventional heat treatment. Scanning electron microscopic (SEM) analysis of the fracture surface indicates the presence of dimples and flat fracture regions are more common in SCT specimens than for CHT and DCT-processed material.« less

Authors:
 [1];  [2];  [2];  [2];  [3]
  1. Department of Mechanical Engineering, Anna University, Sardar Patel Road, Chennai-600 025 (India). E-mail: benzlee@annauniv.edu
  2. Department of Mechanical Engineering, Anna University, Sardar Patel Road, Chennai-600 025 (India)
  3. Department of Production Engineering, Madras Institute of Technology, Chrompet, Anna University, Chennai-600 044 (India)
Publication Date:
OSTI Identifier:
21003558
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 58; Journal Issue: 5; Other Information: DOI: 10.1016/j.matchar.2006.06.019; PII: S1044-5803(06)00214-2; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AUSTENITE; CARBIDES; FATIGUE; FRACTURES; GEARS; HEAT TREATMENTS; MARTENSITE; MATERIALS TESTING; SCANNING ELECTRON MICROSCOPY; STEELS; TENSILE PROPERTIES

Citation Formats

Bensely, A., Senthilkumar, D., Mohan Lal, D., Nagarajan, G., and Rajadurai, A.. Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17. United States: N. p., 2007. Web. doi:10.1016/j.matchar.2006.06.019.
Bensely, A., Senthilkumar, D., Mohan Lal, D., Nagarajan, G., & Rajadurai, A.. Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17. United States. doi:10.1016/j.matchar.2006.06.019.
Bensely, A., Senthilkumar, D., Mohan Lal, D., Nagarajan, G., and Rajadurai, A.. Tue . "Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17". United States. doi:10.1016/j.matchar.2006.06.019.
@article{osti_21003558,
title = {Effect of cryogenic treatment on tensile behavior of case carburized steel-815M17},
author = {Bensely, A. and Senthilkumar, D. and Mohan Lal, D. and Nagarajan, G. and Rajadurai, A.},
abstractNote = {The crown wheel and pinion represent the most highly stressed parts of a heavy vehicle; these are typically made of 815M17 steel. The reasons for the frequent failure of these components are due to tooth bending impact, wear and fatigue. The modern processes employed to produce these as high, durable components include cryogenic treatment as well as conventional heat treatment. It helps to convert retained austenite into martensite as well as promote carbide precipitation. This paper deals with the influence of cryogenic treatment on the tensile behavior of case carburized steel 815M17. The impetus for studying the tensile properties of gear steels is to ensure that steels used in gears have sufficient tensile strength to prevent failure when gears are subjected to tensile or fatigue loads, and to provide basic design information on the strength of 815M17 steel. A comparative study on the effects of deep cryogenic treatment (DCT), shallow cryogenic treatment (SCT) and conventional heat treatment (CHT) was made by means of tension testing. This test was conducted as per ASTM standard designation E 8M. The present results confirm that the tensile behavior is marginally reduced after cryogenic treatment (i.e. both shallow and deep cryogenic treatment) for 815M17 when compared with conventional heat treatment. Scanning electron microscopic (SEM) analysis of the fracture surface indicates the presence of dimples and flat fracture regions are more common in SCT specimens than for CHT and DCT-processed material.},
doi = {10.1016/j.matchar.2006.06.019},
journal = {Materials Characterization},
number = 5,
volume = 58,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}