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利用X射线衍射、TEM、EPMA、SEM等研究了含Nb堆焊金属中的碳化物分布形态及基体组织,分析了碳化物形成过程.结果表明,Nb的加入有利于形成大量碳化物硬质相,但Nb含量过多时,会形成铁素体基体及大量共晶碳化物,导致堆焊金属硬度过低;适量Ti、Nb、V共同作用时,能获得大量均匀分布的颗粒碳化物及马氏体或贝氏体基体,颗粒碳化物是以氧化物为核心的复合碳化物,内层Ti含量高于Nb,外层Nb含量高于Ti.
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材料导报
ISSN: 1005-023X
Year: 2006
Issue: z1
Volume: 20
Page: 408-409,412
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 17
Chinese Cited Count:
30 Days PV: 9
Affiliated Colleges: