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Title: Experimental study of thermodynamics propagation fatigue crack in metals

This work is devoted to the development of an experimental method for studying the energy balance during cyclic deformation and fracture. The studies were conducted on 304 stainless steel AISE samples. The investigation of the fatigue crack propagation was carried out on flat samples with stress concentrators. The stress concentrator was three central holes. The heat flux sensor was developed based on the Seebeck effect. This sensor was used for measuring the heat dissipation power in the examined samples during the fatigue tests. The measurements showed that the rate of fatigue crack growth depends on the heat flux at the crack tip and there are two propagation mode of fatigue crack with different link between the propagation mode and heat flux from crack tip.
Authors:
; ;  [1]
  1. Institute of Continuous Media Mechanics UrB RAS, Perm, 614013 (Russian Federation)
Publication Date:
OSTI Identifier:
22492596
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1683; Journal Issue: 1; Conference: International conference on advanced materials with hierarchical structure for new technologies and reliable structures 2015, Tomsk (Russian Federation), 21-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONCENTRATORS; COOLING; CRACK PROPAGATION; CRACKS; DEFORMATION; ENERGY BALANCE; ENERGY LOSSES; FATIGUE; FRACTURES; HEAT FLUX; HEAT TRANSFER; METALS; SEEBECK EFFECT; SENSORS; STAINLESS STEEL-304; STRESSES; THERMAL DIFFUSIVITY; THERMAL EFFLUENTS; THERMODYNAMICS