Paper Title:
Uniaxial Ratchetting-Fatigue Interaction of Tempered 42CrMo Steel and its Failure Model
  Abstract

Uniaxial ratchetting-fatigue interaction of tempered 42CrMo alloy steel was observed by various cyclic stressing tests at room temperature. The ratchetting deformation and low cycle fatigue (LCF) property of the material as well as their interaction occurred in cyclic stressing were discussed. It is shown that progressive ratchetting deformation causes the decrease of fatigue life, and the fatigue life of the material depends greatly upon the applied mean stress, stress amplitude, maximum stress and stress ratio. Since tempered 42CrMo steel presents significant cyclic softening feature, a tertiary ratchetting is observed. Based on the experimental results, a simple and reasonable failure model convenient to engineering application was constructed to predict the fatigue life of the material in uniaxial cyclic stressing. The basic variables of the model are maximum stress and stress ratio, and the effect of cyclic softening feature on the ratcheting-fatigue interaction is also included in the model by introducing a new variable. It is shown that the predicted lives are in fairly good agreement with the experimental ones.

  Info
Periodical
Advanced Materials Research (Volumes 33-37)
Edited by
Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
Pages
115-120
DOI
10.4028/www.scientific.net/AMR.33-37.115
Citation
G. Z. Kang, Y. J. Liu, Q. Gao, "Uniaxial Ratchetting-Fatigue Interaction of Tempered 42CrMo Steel and its Failure Model", Advanced Materials Research, Vols. 33-37, pp. 115-120, 2008
Online since
March 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jaroslav Polák, Martin Petrenec
Abstract:The fatigue properties of ferritic-pearlitic-bainitic steel using specimens produced from massive forging were measured in stress controlled...
577
Authors: Belen Moreno, Pablo Lopez-Crespo, Antonio González-Herrera, Jose Zapatero
Abstract:Many mechanical components are subjected to multiaxial fatigue. These conditions are typically coming from external loads, the geometry of...
41
Authors: Grzegorz Golański, Krzysztof Werner, Stanisław Mroziński
Mechanical Behavior & Fracture
Abstract:The report treats of the low cycle fatigue (LCF) behaviour of GX12CrMoVNbN9-1 (GP91) cast steel after heat treatment (1040°C/12h/oil +...
1106
Authors: Shu Ying Yin, Li Jia Chen, Xin Wang
Building Materials
Abstract:In order to identify the influence of solid solution, aging and solid solution plus aging treatments on the low-cycle fatigue behavior of the...
883
Authors: Ewa Marcisz, Adam Niesłony, Tadeusz Łagoda
Chapter 1: Fatigue Life Prediction
Abstract:The paper presents the concept of division of the total strain amplitudes. Simulations were performed for high-alloy steel X6NiCr3220 for...
43