Zobrazeno 1 - 10
of 138
pro vyhledávání: '"J. P. Hirth"'
Autor:
Jian Wang, J. P. Hirth
Publikováno v:
Journal of Materials Research. 36:2615-2622
A plane-displacement diagram showing the four twinning elements, planes and directions, is fundamental to the classical theory of twinning. One aspect of the classical theory of type I and II twinning is shown to be inapplicable when the twin rotatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8811b9b009116df3b0d409c3c404ad4a
https://doi.org/10.1557/s43578-020-00003-6
https://doi.org/10.1557/s43578-020-00003-6
Autor:
J. P. Hirth, Ronald W. Armstrong
Publikováno v:
Philosophical Magazine. 101:25-37
Traditionally, for hard materials, two types of straight disclinations are identified although some Somigliana disclinations with different aspects have been treated theoretically. Here, we conside...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::038726b173f08e24bd55c9a8a7f5bc3a
https://doi.org/10.1080/14786435.2020.1809730
https://doi.org/10.1080/14786435.2020.1809730
Publikováno v:
American Mineralogist. 104:966-972
A topological model (TM) is presented for the complex crystal structures characteristic of some minerals. We introduce a tractable method for applying the TM to characterize defects in these complex materials. Specifically, we illustrate how structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::654e374a9a596d8e1fb5d36a588bf3ce
https://doi.org/10.2138/am-2019-6892
https://doi.org/10.2138/am-2019-6892
Publikováno v:
Materials Research Letters. 5:449-464
A controversy concerning the description of twinning, whether it is shear-shuffle or pure glide-shuffle or pure shuffle, has developed. There is disagreement about the interpretation of transmission electron microscopic observations, atomistic simula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d629d24510411c72cc67f2aadf029d4e
https://doi.org/10.1080/21663831.2017.1336496
https://doi.org/10.1080/21663831.2017.1336496
© 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. A topological model of the formation of type II twins in NiTi martensite is presented. Disconnection dipoles are generated initially and expand on the rational k 1 = (011) plane,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c626ddbede430d6096aafce8141865ea
https://www.repository.cam.ac.uk/handle/1810/291253
https://www.repository.cam.ac.uk/handle/1810/291253
Publikováno v:
Acta Materialia. 61:2895-2908
The β → α transformation in plutonium is discussed in terms of the crystallography of the two phases and the resulting topological modeling of the β/α interface. There has been little microscopy work on the transformation, but it is probably ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb691017361b8bb2fd203219703a4e08
https://doi.org/10.1016/j.actamat.2013.01.036
https://doi.org/10.1016/j.actamat.2013.01.036
Publikováno v:
Acta Materialia. 60:1503-1513
Interfaces with relatively low shear strengths can be strong barriers to slip transmission because of core spreading of the dislocation within the interface. Using atomistic modeling and elasticity-based calculations we have studied the influence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a03919dfa6b8d167499fe078d607001
https://doi.org/10.1016/j.actamat.2011.11.047
https://doi.org/10.1016/j.actamat.2011.11.047
Publikováno v:
Acta Materialia. 59:5989-5996
Using in situ nanoindentation in a high-resolution transmission electron microscope we have studied the interaction of glide dislocations with a Σ3 {1 1 1} coherent twin boundary (CTB) of growth type in Cu. These high-resolution observations indicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43d0cc7645884950734a3e5aed30f76d
https://doi.org/10.1016/j.actamat.2011.06.007
https://doi.org/10.1016/j.actamat.2011.06.007
Publikováno v:
Acta Materialia. 59:3990-4001
The objective of this investigation was to identify the elementary twinning dislocations (TDs) for { 1 ¯ 0 1 1 } and { 1 ¯ 0 1 3 } twins by fully characterizing their structure for an Mg crystal. For both { 1 ¯ 0 1 1 } and { 1 ¯ 0 1 3 } twins, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b54730c097d50e6a00803ece4652c40
https://doi.org/10.1016/j.actamat.2011.03.024
https://doi.org/10.1016/j.actamat.2011.03.024
Publikováno v:
Acta Materialia. 59:241-251
The partitioning of rotations is considered for two-phase interfaces. In the isotropic, linear elastic approximation, the rotations associated with tilt components of interface dislocations and disconnections partition equally to the two phases. With
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::463ef345103b401cd42cf2b407ed7480
https://doi.org/10.1016/j.actamat.2010.09.028
https://doi.org/10.1016/j.actamat.2010.09.028