caa a22 4500 463228626 CHVBK 20180405153235.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-007-1614-x doi (NATIONALLICENCE)springer-10.1007/s10853-007-1614-x Transgranular fracture in low temperature brittle fracture of high nitrogen austenitic steel [Elektronische Daten] [Shiyong Liu, Deyi Liu, Shicheng Liu] Morphological features of transgranular fracture facets in low temperature brittle fracture of 18Cr-18Mn-0.7N high nitrogen austenitic steel have been studied by means of scanning electron microscopy and their formation mechanisms have been discussed. The transgranular fracture facets are fairly coarse compared with intergranular fracture facets and annealing twin boundary fracture facets. There are parallel steps and river patterns on the facets. Dual-surface observation indicated that these patterns are parallel to {111} planes and of strict crystallographic features. Microstructure observation shows that there are a lot of planar deformation structures formed prior to low temperature transgranular fracture. Transgranular fracture originates from microcracks formed at the intersections of the deformation structures on different {111} planes. These microcracks propagate toward adjacent microcracks on different {111} planes, forming transgranular fracture facets with steps and river patterns. Springer Science+Business Media, LLC, 2007 Liu Shiyong Electromechanics and Materials Engineering College, Dalian Maritime University, 116026, Dalian, China aut Liu Deyi College of Materials Science and Engineering, Dalian Jiaotong University, 116028, Dalian, China aut Liu Shicheng College of Materials Science and Engineering, Dalian Jiaotong University, 116028, Dalian, China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7514-7519 0022-2461 42:17<7514 2007 42 10853 https://doi.org/10.1007/s10853-007-1614-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1614-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Shiyong Electromechanics and Materials Engineering College, Dalian Maritime University, 116026, Dalian, China aut NATIONALLICENCE 700 1- Liu Deyi College of Materials Science and Engineering, Dalian Jiaotong University, 116028, Dalian, China aut NATIONALLICENCE 700 1- Liu Shicheng College of Materials Science and Engineering, Dalian Jiaotong University, 116028, Dalian, China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7514-7519 0022-2461 42:17<7514 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer