Fatigue behaviour of C-Mn-B steels:effects of heat treatment prestrain and residual stress

King, J.E. and Geary, W. (1986). Fatigue behaviour of C-Mn-B steels:effects of heat treatment prestrain and residual stress. IN: International conference on Fatigue of Engineering Materials and Structures. Institution of Mechanical Engineers Event Publications, 2 . Institution of Mechanical Engineers.

Abstract

The fatigue-crack propagation and threshold behaviour of a C-Mn steel containing boron has been investigated at a range of strength levels suitable for mining chain applications. The heat-treatment variables examined include two austenitizing temperatures (900 degree C and 1250 degree C) and a range of tempering treatments from the as-quenched condition to tempering at 400 degree C. In mining applications the haulage chains undergo a 'calibration' process which has the effect of imposing a tensile prestrain on the chain links before they go into service. Prestrain is shown to reduce threshold values in these steels and this behaviour is related to its effects on the residual stress distribution in the test specimens.

Divisions: Aston University (General)
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Event Title: International conference on Fatigue of Engineering Materials and Structures
Event Type: Other
Event Dates: 1986-09-15 - 1986-09-16
Uncontrolled Keywords: stresses chains,microstructures iron and steel metallography,steel heat treatment,residual stresses steel testing,stresses analysis,austenitizing temperatures,fatigue-crack propagation,heat treatment prestrain,mining chain,residual stresses,single edge notch bend specimen,steel
Published Date: 1986-12

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