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Abstract:
Ni7W/Ni12W/Ni7W composite substrates for YBa2Cu3O7-delta coated conductors were prepared by rolling assisted biaxially textured substrates route. A threefold intermediate annealing at different temperatures was introduced in the rolling process of Ni7W/Ni12W/Ni7W composite substrates to optimize the deformation texture. The recovery microstructure and the deformation texture of latitude and longitude section were studied with X-ray diffraction and electron backscattered diffraction to reveal the possible mechanism of temperature effects on rolling and strong cube texture formation processes. The results show that the highest cube area fraction is found in sample intermediately annealed at 600 degrees C/60 min; in this way Ni7W/Ni12WNi7W composite substrates with high cube texture content of 95% (<10 degrees) are obtained at a low recrystallization annealing temperature. Crystal orientation maps reveal that a higher amount of cube orientation exists in its recovery and initial recrystallization samples. Point to point misorientation files confirm the high grain boundary angle of these cube grains, which strongly boost the cube texture formation during subsequent recrystallization.
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Source :
RARE METAL MATERIALS AND ENGINEERING
ISSN: 1002-185X
Year: 2018
Issue: 10
Volume: 47
Page: 2936-2941
0 . 7 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:260
JCR Journal Grade:4
Cited Count:
WoS CC Cited Count: 1
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 4
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