Matches in SemOpenAlex for { <https://semopenalex.org/work/W4313854917> ?p ?o ?g. }
- W4313854917 endingPage "112005" @default.
- W4313854917 startingPage "112005" @default.
- W4313854917 abstract "It is a common wisdom that metallic materials become brittle once being deformed quickly. However, here we reveal an abnormal strain-rate-induced brittle-ductile-delamination transition in a widely used pearlitic steel with unique structure of alternative arrangement of nanoscale ductile ferrite and brittle cementite through extensive molecular dynamics simulations. In contrast to the brittle cleavage fracture in conventional crystalline alloys, the brittle fracture in pearlitic steel at relatively low strain rate is mediated by the nanoscale cavitation ahead of crack tip, akin to the widely observed fracture mode in metallic glasses. As the strain rate increases, fracture mode transforms to a dislocation nucleation mediated ductile mechanism. At extremely high strain rate, it is found that the fracture mode turns to be collective delamination at the interfaces, leading to a surprising “delamination toughening”. The abnormal brittle-to-ductile transition with increasing deformation rate is physically rationalized by a mechanistic model, which is based on a scenario of energetic competition between the interface cleavage and the dislocation nucleation in the vicinity of crack tip. Once the strain rate exceeds a critical value, fracture transitions to dislocation nucleation dominated. When strain rate increases to extremely high values, there is no enough time for either crack propagation or dislocation nucleation, and the collective delamination of interfaces occurs which involves only instantaneous bond breaking at weakly bonded regions, i.e. the interface. The unravelled phenomenon challenges the conventional knowledge of materials deformation and failure which might shed light on coordinating unanticipated utilities of the ultrastrong pearlitic steels in extreme environments." @default.
- W4313854917 created "2023-01-10" @default.
- W4313854917 creator A5037458498 @default.
- W4313854917 creator A5037873650 @default.
- W4313854917 creator A5040982750 @default.
- W4313854917 creator A5063898626 @default.
- W4313854917 creator A5064532951 @default.
- W4313854917 creator A5067596218 @default.
- W4313854917 date "2023-02-01" @default.
- W4313854917 modified "2023-10-14" @default.
- W4313854917 title "Emergent failure transition of pearlitic steel at extremely high strain rates" @default.
- W4313854917 cites W1854957053 @default.
- W4313854917 cites W1966227141 @default.
- W4313854917 cites W1970264806 @default.
- W4313854917 cites W1971112511 @default.
- W4313854917 cites W1971260269 @default.
- W4313854917 cites W1978394982 @default.
- W4313854917 cites W1980867371 @default.
- W4313854917 cites W1991794210 @default.
- W4313854917 cites W1992287274 @default.
- W4313854917 cites W1993767215 @default.
- W4313854917 cites W1994040696 @default.
- W4313854917 cites W1997549661 @default.
- W4313854917 cites W2001656393 @default.
- W4313854917 cites W2006375637 @default.
- W4313854917 cites W2011649643 @default.
- W4313854917 cites W2019465613 @default.
- W4313854917 cites W2023701915 @default.
- W4313854917 cites W2027371160 @default.
- W4313854917 cites W2034643064 @default.
- W4313854917 cites W2040094989 @default.
- W4313854917 cites W2040265617 @default.
- W4313854917 cites W2041638382 @default.
- W4313854917 cites W2049374707 @default.
- W4313854917 cites W2053793076 @default.
- W4313854917 cites W2055879531 @default.
- W4313854917 cites W2056859470 @default.
- W4313854917 cites W2057615072 @default.
- W4313854917 cites W2058352527 @default.
- W4313854917 cites W2063477434 @default.
- W4313854917 cites W2065684323 @default.
- W4313854917 cites W2068819798 @default.
- W4313854917 cites W2077818116 @default.
- W4313854917 cites W2079380336 @default.
- W4313854917 cites W2080198623 @default.
- W4313854917 cites W2081693079 @default.
- W4313854917 cites W2087936669 @default.
- W4313854917 cites W2088447333 @default.
- W4313854917 cites W2089259089 @default.
- W4313854917 cites W2094746742 @default.
- W4313854917 cites W2118739745 @default.
- W4313854917 cites W2132908929 @default.
- W4313854917 cites W2134048128 @default.
- W4313854917 cites W2149690391 @default.
- W4313854917 cites W2170689963 @default.
- W4313854917 cites W2323704671 @default.
- W4313854917 cites W2341068027 @default.
- W4313854917 cites W2389304112 @default.
- W4313854917 cites W2405163970 @default.
- W4313854917 cites W2410680923 @default.
- W4313854917 cites W2518043534 @default.
- W4313854917 cites W2520185321 @default.
- W4313854917 cites W2567147600 @default.
- W4313854917 cites W2747851179 @default.
- W4313854917 cites W2751812276 @default.
- W4313854917 cites W2754867288 @default.
- W4313854917 cites W2768754212 @default.
- W4313854917 cites W2771597271 @default.
- W4313854917 cites W2774721411 @default.
- W4313854917 cites W2794318877 @default.
- W4313854917 cites W2795314251 @default.
- W4313854917 cites W2900282428 @default.
- W4313854917 cites W2901873920 @default.
- W4313854917 cites W2910758312 @default.
- W4313854917 cites W2942421889 @default.
- W4313854917 cites W2963763478 @default.
- W4313854917 cites W2973042317 @default.
- W4313854917 cites W2999991110 @default.
- W4313854917 cites W3014615899 @default.
- W4313854917 cites W3021373588 @default.
- W4313854917 cites W3093666034 @default.
- W4313854917 cites W3164442166 @default.
- W4313854917 cites W3216990276 @default.
- W4313854917 cites W4200457344 @default.
- W4313854917 cites W4214509702 @default.
- W4313854917 cites W4253507635 @default.
- W4313854917 doi "https://doi.org/10.1016/j.commatsci.2022.112005" @default.
- W4313854917 hasPublicationYear "2023" @default.
- W4313854917 type Work @default.
- W4313854917 citedByCount "0" @default.
- W4313854917 crossrefType "journal-article" @default.
- W4313854917 hasAuthorship W4313854917A5037458498 @default.
- W4313854917 hasAuthorship W4313854917A5037873650 @default.
- W4313854917 hasAuthorship W4313854917A5040982750 @default.
- W4313854917 hasAuthorship W4313854917A5063898626 @default.
- W4313854917 hasAuthorship W4313854917A5064532951 @default.
- W4313854917 hasAuthorship W4313854917A5067596218 @default.
- W4313854917 hasConcept C121332964 @default.