The effect of sulphide inclusions on fracture toughness and fatigue crack growth in 12 wt% Cr steels

The variation of plane strain fracture toughness and fatigue crack growth rates with sulfide inclusion content has been examined for four different sulfur levels in a 12 wt% Cr stainless steel. Charpy impact tests have also been conducted and the experimental results are correlated with the volume f...

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Bibliographic Details
Published in:Journal of materials science 1982-07, Vol.17 (7), p.2112-2126
Main Authors: RAGHUPATHY, V.P, SRINIVASAN, V, KRISHNAN, H, CHANDRASEKHARAIAH, M.N
Format: Article
Language:English
Subjects:
Applications
Applied sciences
Condensed matter: structure, mechanical and thermal properties
crack propagation
Cross-disciplinary physics: materials science
rheology
Engineering techniques in metallurgy. Applications. Other aspects
Exact sciences and technology
Fatigue
Fractures
impact testing
Materials science
Mechanical and acoustical properties of condensed matter
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals, semimetals and alloys
Metals. Metallurgy
Others aspects
Physics
Specific materials
stainless steel
strain
sulfur
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Summary:The variation of plane strain fracture toughness and fatigue crack growth rates with sulfide inclusion content has been examined for four different sulfur levels in a 12 wt% Cr stainless steel. Charpy impact tests have also been conducted and the experimental results are correlated with the volume fraction of inclusions and the inter-inclusion spacing. The availability of the experimental results for the case of steam turbine blading is discussed with a hypothetical example problem.
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00540430