Formation of nanocrystalline during flash welding of 0Cr16Ni22Mo2Ti steel  

Formation of nanocrystalline during flash welding of OCrl6Ni22Mo2Ti steel

作　　者：ZHANG Fucheng, ZHANG Ming, HU Baitao & WANG TianshengCollege of Materials Science and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China 

出　　处：《Chinese Science Bulletin》2001年第3期210-212,共3页

摘　　要：A nanocrystalline layer was fabricated in bond area of OCrl6Ni22Mo2Ti austenite steel using flash welding. The mean grain size near bond line is about 20 nm, and the farther the distance from bond line, the larger the size of the nanocrystalline. The thickness of the nanocrystalline layer is about 50 um. The formation mechanism of the nanocrystalline may be that the metal in semisolid state is deformed severely and its solid grains are fragmented.A nanocrystalline layer was fabricated in bond area of OCrl6Ni22Mo2Ti austenite steel using flash welding. The mean grain size near bond line is about 20 nm, and the farther the distance from bond line, the larger the size of the nanocrystalline. The thickness of the nanocrystalline layer is about 50 um. The formation mechanism of the nanocrystalline may be that the metal in semisolid state is deformed severely and its solid grains are fragmented.

关 键 词：NANOCRYSTALLINE materials FLASH WELDING PLASTIC deformation. 

分 类 号：TG401[金属学及工艺—焊接]