Texture Evolution and Nanohardness in Cu-Nb Composite Wires

Autor: Shihua Xiang, Xiaofang Yang, Yanxiang Liang, Lu Wang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Materials, Vol 14, Iss 18, p 5294 (2021)
Druh dokumentu: article
ISSN: 1996-1944
DOI: 10.3390/ma14185294
Popis: Multifilamentary microcomposite copper-niobium (Cu-Nb) wires were fabricated by a series of accumulative drawing and bonding steps (ADB). The texture of the Cu matrix in these wires was studied using electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM). Dynamic recrystallization during cold drawing caused a weakening of the texture in the micron-scale Cu matrix at high values of true strain. A sharp texture was observed in the nano-scale Cu matrix due to the suppression of dynamic recrystallization. The grain size was reduced by the higher level of dynamic recrystallization at high strains. The relation between the nanoindentation behavior of the different Cu matrix and the grain sizes, Cu-Nb interface, and texture was established.
Databáze: Directory of Open Access Journals