Abstract
The present paper deals, at length, with a number of aspects of the novel usage of miniature disc specimens to ascertain the loss of toughness in certain critical engineering components which operate at elevated temperatures. This type of test is commonly known as the small punch, SP, test. Details of the experimental methodology are introduced together with a critical appraisal of the relationship between SP transition temperature, T SP, and the more conventional Charpy fracture appearance transition temperature, FATT, obtained from large test specimens. Essentially it was demonstrated that a non-linear expression better described the T SP–FATT trends published in the literature, viz. FATT=C/ T SP 2 When the T SP–FATT trends of the various steel classes were concerned separately an encouraging picture emerged in that a reasonable amount of the reported data exhibited good agreement with the predicted effects of grain size. Finally, the fractographic characteristics of the SP test and the Charpy test were compared and contrasted.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: International Journal of Pressure Vessels and Piping
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.