The influence of inelastic damage on tensile deformation and creep crack growth behaviour of type 316H stainless steel

A. Mehmanparast, C. M. Davies, D. W. Dean, K. M. Nikbin

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

4 Citations (Scopus)

Abstract

Inelastic deformation (combined plastic and creep strain) is known to have significant effects on the tensile and creep deformation behaviour of Type 316H stainless steel. In this work the influence of inelastic strain on the room temperature tensile behaviour of 316H has been examined. Plastic strain was introduced into the material by uniform pre-compression (PC) to 8% plastic strain at room temperature. In addition, creep strain was subsequently introduced into samples by performing uniaxial creep tests on the pre-compressed material. These creep tests were interrupted at various stages of life so that the influence of inelastic damage on the tensile response of the material could be examined. In addition, creep crack growth (CCG) tests have been performed on compact tension C(T) specimens made of 8% pre-compressed material at 550 °C and the results are compared to the existing data on PC material. The results from these tests have been discussed in terms of specimen constraint, initial crack length and loading effects on the CCG behaviour of the PC material.

Original languageEnglish
Title of host publicationASME 2013 Pressure Vessels and Piping Conference, PVP 2013
Number of pages10
Volume6A
DOIs
Publication statusPublished - 17 Jan 2014
EventASME 2013 Pressure Vessels and Piping Conference, PVP 2013 - Paris, France
Duration: 14 Jul 201318 Jul 2013

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume6 A
ISSN (Print)0277-027X

Conference

ConferenceASME 2013 Pressure Vessels and Piping Conference, PVP 2013
Country/TerritoryFrance
CityParis
Period14/07/1318/07/13

Keywords

  • inelastic damage
  • 316H stainless steel
  • inelastic deformation
  • tensile deformation
  • fracture
  • creep deformation behaviour

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