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Title: Effects of Mo ion implantation on rolling contact fatigue behavior of carbon steel

Abstract

Rolling Contact Fatigue (RCF) is one of the most serious material surface damage problems encountered by many critical components, especially in ball-bearing applications. RCF is sensitive to the material strength, hardness, surface morphology, microstructure and stress status, which may be dramatically changed by surface modifications. In present work, the surface modification of molybdenum ion implantation into quenched carbon steel was employed, and RCF tests on the implanted specimens, as well as the unimplanted, were performed. It was found out that carbon steel specimens, with and without ion implantation, have the same fatigue damage characteristics. They both have circular and fan-like pits on the fatigue failed surfaces, with many spherical debris existing in the fan-like pits. However, molybdenum ion implantation reduced the rolling contact fatigue life of quenched carbon steel. The possible reasons are the following: the ion beam current is too large, which causes the specimen to undergo the annealing process and soften during the implantation process; the incident angles of ions are different for different spots of curve specimen surface, which causes the uneven distribution of residual stress. These will promote the crack initiation and propagation.

Authors:
;  [1]
  1. Prairie View A and M Univ., TX (United States). Dept. of Mechanical Engineering
Publication Date:
OSTI Identifier:
382828
Report Number(s):
CONF-960154-
ISBN 0-9648731-8-4; TRN: 96:025738
Resource Type:
Book
Resource Relation:
Conference: Energy Week `96: American Society of Mechanical Engineers and American Petroleum Institute energy week conference and exhibition, Houston, TX (United States), 21 Jan - 2 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Energy week `96: Conference papers. Book 4: Engineering technology; PB: 453 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBON STEELS; ION IMPLANTATION; MOLYBDENUM; CRACK PROPAGATION; SERVICE LIFE; MECHANICAL TESTS; EXPERIMENTAL DATA

Citation Formats

Yang, D, and Zhou, J. Effects of Mo ion implantation on rolling contact fatigue behavior of carbon steel. United States: N. p., 1996. Web.
Yang, D, & Zhou, J. Effects of Mo ion implantation on rolling contact fatigue behavior of carbon steel. United States.
Yang, D, and Zhou, J. 1996. "Effects of Mo ion implantation on rolling contact fatigue behavior of carbon steel". United States.
@article{osti_382828,
title = {Effects of Mo ion implantation on rolling contact fatigue behavior of carbon steel},
author = {Yang, D and Zhou, J},
abstractNote = {Rolling Contact Fatigue (RCF) is one of the most serious material surface damage problems encountered by many critical components, especially in ball-bearing applications. RCF is sensitive to the material strength, hardness, surface morphology, microstructure and stress status, which may be dramatically changed by surface modifications. In present work, the surface modification of molybdenum ion implantation into quenched carbon steel was employed, and RCF tests on the implanted specimens, as well as the unimplanted, were performed. It was found out that carbon steel specimens, with and without ion implantation, have the same fatigue damage characteristics. They both have circular and fan-like pits on the fatigue failed surfaces, with many spherical debris existing in the fan-like pits. However, molybdenum ion implantation reduced the rolling contact fatigue life of quenched carbon steel. The possible reasons are the following: the ion beam current is too large, which causes the specimen to undergo the annealing process and soften during the implantation process; the incident angles of ions are different for different spots of curve specimen surface, which causes the uneven distribution of residual stress. These will promote the crack initiation and propagation.},
doi = {},
url = {https://www.osti.gov/biblio/382828}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Nov 01 00:00:00 EST 1996},
month = {Fri Nov 01 00:00:00 EST 1996}
}

Book:
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