Fracture process of a low carbon low alloy steel relevant to charpy toughness at ductile-brittle fracture transition region

Optimization of Mechanical Properties of High-Manganese Steel for LNG Storage Tanks: A Comprehensive Review of Alloying Element Effects

“…An overly high concentration of Al has been shown to diminish the austenite phase region while subsequently increasing the ferrite phase region [103]. δ ferrite, possessing a bodycentered cubic (BCC) structure, demonstrates a transition from ductility to brittleness when subjected to low temperatures [104]. Figure 11e,f showcase a proclivity for microcracks to initiate at the γ/δ interfaces, spreading either along these interfaces or throughout the δ ferrite colonies.…”

Evaluating a valid fracture specimen geometry for predicting geometry independent SZWc and JSZW value in SA333 Gr. 6 carbon steel material

“…Industries like aerospace, automobile and power plants are increasingly demanding highly tough ductile materials to optimize the component dimensions without reducing the safety margins. Thus it is indispensable that the nonlinear properties of the used materials be known and the process to fracture be understand well [1] and especially the material crack initiation behavior frequently governs by elastic-plastic initiation fracture toughness (J). Using experimental J-R curves obtained from standard fracture specimens (C(T), SE(B), etc.)…”

High Strain Rate Mechanical Behavior of Advanced High Strength Steels

“…This outstanding feature makes AUST. SSs more favorable for automotive applications than other ferrite or martensite-based steels, which have inadequate impact resistance at low temperature and obvious DBTT effect [40,226]. The possible reason is that fcc austenite has multiple slip systems which do not need thermal activation so that the decreased temperature has little effect on absorbing impact energy [40].…”