Fatigue evaluation of 8630 cast steel subjected to post-weld heat treatment and stress relieving

Alireza Shiazi, Ihab Ragai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effect of post weld heat treating and stress relieving on the fatigue strength of AISI 8630 cast steel, weld repaired with different filler materials, is the primary objective of the study. To determine the material properties, experiments included monotonic tensile tests, load-controlled fatigue tests as well as hardness tests. Moreover, specimens were micro-etched to examine the morphology of the fracture surface. The results of the fatigue tests are presented in the form of S-N charts. The test findings are then employed in a generalized numerical solution to predict the fatigue behavior of similar components. Finite element models are used to calculate stresses in tested samples, stress concentrations, and in fatigue life comparisons. Stress-life predictions were performed using the modified Goodman criterion to account for the mean stress effects caused by the stress ratio R = 0.1 loading. Predictions based off of finite element analysis and analytical solution for fatigue life provided reasonable estimates which are confirmed by the experimental results.

Original languageEnglish (US)
Title of host publicationASME 2014 International Manufacturing Science and Engineering Conference, MSEC 2014 Collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
PublisherWeb Portal ASME (American Society of Mechanical Engineers)
ISBN (Electronic)9780791845813
DOIs
StatePublished - Jan 1 2014
EventASME 2014 International Manufacturing Science and Engineering Conference, MSEC 2014 Collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference - Detroit, United States
Duration: Jun 9 2014Jun 13 2014

Publication series

NameASME 2014 International Manufacturing Science and Engineering Conference, MSEC 2014 Collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
Volume2

Other

OtherASME 2014 International Manufacturing Science and Engineering Conference, MSEC 2014 Collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
CountryUnited States
CityDetroit
Period6/9/146/13/14

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering

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