特种铸造及有色合金
特種鑄造及有色閤金
특충주조급유색합금
SPECIAL CASTING & NONFERROUS ALLOYS
2010年
1期
67-70
,共4页
均匀化%铸轧%AA3003铝合金%再结晶
均勻化%鑄軋%AA3003鋁閤金%再結晶
균균화%주알%AA3003려합금%재결정
Homogenization%Twin Rolling-casting%AA3003 Aluminum Alloy%Recrystallization
通过光学显微镜、硬度测试仪、扫描电镜、双臂电桥等研究了AA3003铝合金铸轧板经不同均匀化处理后,预析出第二相颗粒对再结晶组织和再结晶温度的影响.试验表明,高温均匀化过程中析出的第二相对冷轧试样的再结晶具有显著的作用.经580℃均匀化处理的试样的再结晶温度降低了大约100℃,并且在520℃退火过程中得到了尺寸梯度很小的细小等轴晶组织.
通過光學顯微鏡、硬度測試儀、掃描電鏡、雙臂電橋等研究瞭AA3003鋁閤金鑄軋闆經不同均勻化處理後,預析齣第二相顆粒對再結晶組織和再結晶溫度的影響.試驗錶明,高溫均勻化過程中析齣的第二相對冷軋試樣的再結晶具有顯著的作用.經580℃均勻化處理的試樣的再結晶溫度降低瞭大約100℃,併且在520℃退火過程中得到瞭呎吋梯度很小的細小等軸晶組織.
통과광학현미경、경도측시의、소묘전경、쌍비전교등연구료AA3003려합금주알판경불동균균화처리후,예석출제이상과립대재결정조직화재결정온도적영향.시험표명,고온균균화과정중석출적제이상대랭알시양적재결정구유현저적작용.경580℃균균화처리적시양적재결정온도강저료대약100℃,병차재520℃퇴화과정중득도료척촌제도흔소적세소등축정조직.
Effects of pre-precipitates on recrystallization structure and recrystallization temperature of AA3003 twin roll cast aluminum strip treated by different hom-ogenization were investigated by optical microscope, hardness tester, scanning electron microscope and the Kelvin bridges. The results show that recrystallization structure in the cold rolled strips is closely related to the precipitated secondary phase during high temperature homogenization. The recrystallization temperature of the strips treated by homogenization at 580℃ is decreased approximately 100℃. Furthermore, fine e-quiaxed structure with very small size gradient can be observed in the strips after annealed at 520℃.
