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Characterization of multiple twinned structural units in pulse-electrodeposited nickel

Uta Klement (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Alexander Kahrimanidis (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik) ; Yiming Yao (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik)
IOP Conf. Series: Materials Science and Engineering: 17th International Conference on Textures of Materials, ICOTOM 2014, Dresden, Germany, 24-29 August 2014 (1757-8981). Vol. 82 (2015), p. 012073.
[Konferensbidrag, refereegranskat]

The investigation was performed on pulse-electrodeposited Nickel with sub-microcrystalline microstructure containing slightly elongated grains having a <110> fibre texture in growth direction. Structural units in form of groups of elongated grains possessing a common <110>-zone axis in growth direction and CSL boundaries (in some cases twins) between them have been found in the microstructure by use of EBSD. Grain growth sets in above 325°C but the texture is conserved up to at least 600°C. This means that the arrangement of twins and other CSL boundaries stabilized the structural units; there is no orientation change (by further twinning) when grain growth occurs as seen in previous studies on Ni and Ni-Fe of different initial texture. The observed structural units were characterized in detail and the occurring grains and grain boundaries are described.

Nyckelord: multiple twinned structure, EBSD, electroddeposition, nickel, CSL boundaries

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Denna post skapades 2015-04-29. Senast ändrad 2015-12-16.
CPL Pubid: 215941


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