Szczegóły publikacji
Opis bibliograficzny
Anti-twinning in an $Ni-Mo-Cr$ alloy / WRÓBEL Mirosław, STĘPNIOWSKA Elżbieta, DYMEK Stanisław // Diffusion and Defect Data – Solid State Data. Part B, Solid State Phenomena ; ISSN 1012-0394. — 2013 — vols. 203–204, s. 254–257. — Bibliogr. s. 257, Abstr. — XXII CAC 2012 : Conference of Applied Crystallography : 02–06 September 2012, Targanice, Poland : selected, peer reviewed papers / eds. Danuta Stróż, Grzegorz Dercz. — Switzerland : Trans Tech Publications, cop. 2013. — ISBN 978-3-03785-754-0
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 77422 |
|---|---|
| Data dodania do BaDAP | 2013-11-08 |
| Tekst źródłowy | URL |
| DOI | 10.4228/www.scientific.net/SSP.203-204.254 |
| Rok publikacji | 2013 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena |
Abstract
Two morphological types of mechanical twins occur in the microstructure of cold rolled Ni-Mo-Cr alloy: long - passing over whole grains and micro-twins - confined to individual long range ordered domains. Long mechanical twins were only formed in the disordered alloy. Such twins are typical for metals with the face centered cubic structure with relatively low stacking fault energy. They do not form in the grains with twinning prohibited crystallographic orientations, e.g. {110}<001>. Both types of twins were found in an alloy subjected to prolong annealing at 650 degrees C. The annealing induces long range ordering reaction leading to the formation of ordered domains with the body centered orthorombic crystal structure (oI8). The twins were of type I, type II, compound twins or pseudo-twins, depending on the crystallographic orientation of the ordered phase in relation to the matrix. It was found that twins of such types were formed even in grains with the {110}<001> orientation and result from the anti-twinning deformation. However, in this orientation they were confined to ordered domains rather than developed into the long form crossing entire grains. On the other hand, the long twins of various types were formed in grains with other twinning favoring crystallographic orientations.
