Paper Title:
Temperature Dependence of Residual Stress Gradients in Shot-Peened Steel Coated with CrN
  Abstract

A temperature behaviour of residual stresses in shot-peened steel coated with 3m CrN is characterized using in-situ energy dispersive synchrotron X-ray diffraction performed in the temperature range of 25-800°C. The samples are thermally cycled and the development of volumeaveraged residual stresses in the coating and residual stress depth gradients in the steel is characterized. The results reveal complex changes of stresses in CrN and in the substrate. The annealing results in the removal of stress gradients in the steel which starts at the temperature of about 600°C. After cooling down, there are no stresses detected in the steel. The temperature dependence of stresses in CrN is very complex and indicates the presence of phenomena like an annealing of intrinsic stresses about the deposition temperature of 350°C, a formation and a closing of micro-cracks in the tensile region and finally a stress relaxation of approximately 500 MPa after the cooling down. The presented approach allows a complex characterization of thermo-mechanical processes in coating-substrate composites and opens the possibility to understand phenomena related to the thermal fatigue of coated tools.

  Info
Periodical
Materials Science Forum (Volumes 571-572)
Edited by
A. R. Pyzalla, A. Borbély and H.-P. Degischer
Pages
101-106
DOI
10.4028/www.scientific.net/MSF.571-572.101
Citation
K. J. Martinschitz, C. Kirchlechner, R. Daniel, G. Maier, C. Mitterer, J. Keckes, "Temperature Dependence of Residual Stress Gradients in Shot-Peened Steel Coated with CrN", Materials Science Forum, Vols. 571-572, pp. 101-106, 2008
Online since
March 2008
Export
Price
$35.00
Share

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

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

Authors: Daisuke Yonekura, Huriyzju Fukuda, Riichi Murakami
Abstract:Three point bending fatigue tests were carried out to investigate the influence of bias voltage on fatigue behavior of medium carbon steel...
275
Authors: Paolo Baldissera, Stefano Cavalleri, Paolo Marcassoli, Federico Tordini
Abstract:In this paper the influence of DCT (Deep Cryogenic Treatment) and a CrN arc-deposited PVD (Physical Vapor Deposition) coating on the fatigue...
49
Authors: Sergio Baragetti, Federico Tordini
Abstract:In this paper a review of the state of the art on the study of the fatigue and the contact/rolling contact fatigue (RCF) resistance of thin...
801
Authors: Bhadpiroon Sresomroeng, Pakorn Chumrum, Varunee Premanond
Abstract:This paper aims to evaluate residual stress of coated film on cold work tool steel grade SKD11 (JIS) substrate. Four types of film coating...
1136
Authors: C.L. Zhong, L.E. Luo
Chapter 1: Material Engineering and its Application Technology
Abstract:A series of Cr1-xAlxN coatings were deposited by reactive magnetron sputtering. The content, microstructure and surface morphology of the...
23