Comparison of ASME K IR curve and dynamic master curve in determining ductile–brittle transition temperature of A48P2 steel
Authors: Moitra, A.; Sreenivasan, P. R.; Venugopal, S.; Mannan, S. L.
Source: Materials Science and Technology, Volume 21, Number 10, October 2005 , pp. 1166-1170(5)
Publisher: Maney Publishing
Abstract:The ductile–brittle transition temperature (DBTT) of grade A48P2 steel is characterised based on the American Society of Mechanical Engineers (ASME) fracture toughness K IR curve and dynamic master curve approaches. The indexing parameter for the K IR curve, reference temperature RTNDT, is determined from drop weight and Charpy tests to be −45°C. The dynamic master curve is constructed following ASTM standard E1921 guidelines; however, instead of precracked tests, the dynamic fracture toughness K Jd is determined from Charpy V notch tests using a modified Schindler's procedure. A Weibull plot is constructed using the K Jd data, and it is found that the points comply reasonably with the forced fit line of slope 4. The reference temperature for constructing the dynamic master curve, termed T dy,Sch 0, thus determined is −56°C. The ASME K IR curve is shown to be conservative compared with the dynamic master curve constructed using T dy,Sch 0.
Document Type: Research Article
Publication date: 2005-10-01
Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.Materials Science and Technology is the successor of two previous titles, for which digitised archives are available: Metal Science (Vols. 1—17; 1967—84) and Metals Technology (Vols. 1—11; 1974—84).
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Online submission site
- ingentaconnect is not responsible for the content or availability of external websites