CAJ | 학술논문

研究晶界工程处理过程中的冷轧变形量和再结晶退火对白铜B10合金晶界特征分布的影响，采用电子背散射衍射(EBSD)技术表征分析晶界网络的变化。结果表明：白铜B10合金经冷轧7%后在800℃退火10 min可使低ΣCSL(Coincidence site lattice，Σ≤29)晶界比例提高到75%以上，同时形成尺寸较大的“互有Σ3n取向关系晶粒的团簇”显微组织。当变形量小于7%时，经800℃退火后没有完全再结晶；当变形量大于7%时，低ΣCSL晶界比例和平均晶粒团簇的尺寸随冷轧变形量的增加而下降。
연구정계공정처리과정중적랭알변형량화재결정퇴화대백동B10합금정계특정분포적영향，채용전자배산사연사(EBSD)기술표정분석정계망락적변화。결과표명：백동B10합금경랭알7%후재800℃퇴화10 min가사저ΣCSL(Coincidence site lattice，Σ≤29)정계비례제고도75%이상，동시형성척촌교대적“호유Σ3n취향관계정립적단족”현미조직。당변형량소우7%시，경800℃퇴화후몰유완전재결정；당변형량대우7%시，저ΣCSL정계비례화평균정립단족적척촌수랭알변형량적증가이하강。
The effects of cold rolling deformation and annealing on the grain boundary character distribution (GBCD) during grain boundary engineering (GBE) treatment were investigated by electron backscatter diffraction (EBSD) in cupronickel B10 alloy. The results show that the proportion of low-Σ CSL (Coincidence site lattice, Σ≤29) grain boundaries increase to more than 75% by 7% cold rolling and subsequent annealing at 800 ℃. In this case, the grain boundary network (GBN) is featured by the formation of highly twinned large size grain-clusters produced by multiple twinning during recrystallization. When the cold rolling deformation amount is less than 7%, the 800℃annealing can not induce perfect recrystallization. The perfect recrystallization occurs when the deformation amount is more than 7%, and the proportion of low-ΣCSL grain boundaries and the average size of grain-clusters decrease with the increase of the cold rolling reduction ratio.