Charpy impact toughness and transition temperature in ferrite–perlite steel
نویسندگان
چکیده
منابع مشابه
Role of Delamination and Crystallography on Anisotropy of Charpy toughness in API-X80 steel
The orientation dependence of Charpy toughness has been investigated in API-X80 linepipe steel. The occurrence of delamination and preferential alignment of {100} cleavage planes are found to contribute to the observed anisotropy in Charpy properties. Delamination is also related to the presence of banding in the hot–rolled alloy, and the additional plasticity it entails during the process of f...
متن کاملImpact Toughness Modification of NIST Low-Energy Charpy Verification Specimens for Testing at Room Temperature
The possibility for the National Institute for Standards and Technology (NIST) to certify Charpy reference specimens for testing at room temperature (21 °C ± 1 °C) instead of −40 °C was investigated in a previous study, in which a slightly increased likelihood of specimen jamming was observed at the low-energy level (13 J to 20 J). Moreover, there is a concern that the higher impact toughness o...
متن کاملUltrahigh Charpy impact toughness (~450J) achieved in high strength ferrite/martensite laminated steels
Strength and toughness are a couple of paradox as similar as strength-ductility trade-off in homogenous materials, body-centered-cubic steels in particular. Here we report a simple way to get ultrahigh toughness without sacrificing strength. By simple alloying design and hot rolling the 5Mn3Al steels in ferrite/austenite dual phase temperature region, we obtain a series of ferrite/martensite la...
متن کاملA NOVEL PROCEDURE FOR MEASURING THE IMPACT FRACTURE TOUGHNESS KId WITH PRECRACKED CHARPY SPECIMENS
A procedure i s presented f o r determining the impact f r a c t u r e toughness K w i t h precracked Charpy specimens wi thout performing any load measurements.'?he Kid-val ue i s obtained from preestabl ished impact response curves and a measurement o f t h e t ime-to-fracture. The measuring technique i s f u l l y dynamic and does not impose any r e s t r i c t i o n s on t h e t e s t condi...
متن کاملComment on ”Effect of carbide distribution on the fracture toughness in the transition temperature region of an SA 508 steel”
Critical cleavage stress values and carbide sizes obtained in a recent work by Lee et al. [1] are recalculated using 2D and 3D FE simulations and new constitutive law, instead of small scale yielding assumption and likely improper choice for the behavior of SA 508 steel. A new model based on the weakest link concept with the determined carbide size distribution (CSD) is succesfully applied to p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientia et technica
سال: 2019
ISSN: 2344-7214,0122-1701
DOI: 10.22517/23447214.19971