University of Illinois Urbana-Champaign

Comparison of fatigue behavior of leaded and non leaded AISI 4340 steel at high hardness levels

Suhre, J.R.; Brock, G.W.

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https://hdl.handle.net/2142/112299

Description

Title
Comparison of fatigue behavior of leaded and non leaded AISI 4340 steel at high hardness levels
Author(s)
  • Suhre, J.R.
  • Brock, G.W.
Issue Date
1959-02
Keyword(s)
  • Fatigue Behavior
  • Hardness Levels
  • Aisi 4340 Steel
Abstract
An investigation was made to determine the effect of lead additions of 0.17 and 0.25 percent on the tensile properties and fatigue limit of AISI 4340 steel, heat treated to tensile strength levels ranging from 103,000 psi. to 270,000 psi. It was found that, while lead additions had little effect on the tensile properties of the material, the mean fatigue limit of smooth specimens was decreased slightly at all strength levels above 103,000 psi. The results indicate that there is no apparent difference between the effect on the fatigue properties caused by 0.17 percent lead additions compared to 0.25 percent lead additions. Lead additions did not appear to substantially effect the fatigue life of specimens tested at stress levels above the mean fatigue limit.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 570
  • 1971-8590
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/112299
Sponsor(s)/Grant Number(s)
Navy Bureau of Ord 59/02
Copyright and License Information
Copyright 1959 Board of Trustees of the University of Illinois

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Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.