Annealing characteristics of nanostructured Cu-Fe-P alloy processed by accumulative roll-bonding.
Annealing characteristics of a nanostructured copper alloy processed by accumulative roll-bonding (ARB) were studied. A nano-grained Cu-Fe-P alloy processed by 8 cycles of the ARB was annealed at various temperatures ranging from 100 to 400 degrees C for 0.6 ks. The sample still showed an ultrafine grained (UFG) structure up to 250 degrees C, however above 300 degrees C it began to replace by equiaxed and coarse grains due to an occurrence of the conventional static recrystallization. The hardness of the annealed copper decreased largely above 300 degrees C. These annealing characteristics of the UFG copper alloy were compared to those of a high purity copper.
Lee
Seong-Hee
SH
Department of Advanced Materials Science and Engineering, Mokpo National University, Muan-gun 534-729, Chonnam, Korea.
Lee
Chung-Hyo
CH
Yoon
Suk-Ja
SJ
Han
Seung-Zeon
SZ
Lim
Cha-Yong
CY
D000497:Alloys / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D006358:Hot Temperature; D007501:Iron / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008669:Metallurgy / Q000379:methods; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D010758:Phosphorus / Q000737:chemistry*; D011312:Pressure; D013499:Surface Properties; D013696:Temperature
D000497:Alloys; D046911:Macromolecular Substances; D010758:Phosphorus; D003300:Copper; D007501:Iron