细化剂对5052铝合金铸轧板材组织性能的影响  

Effect of Grain-refiner on Microstructure and mechanical properties of Roll-casting 5052 Aluminum Alloy

作　　者：吕野楠[1] 丁韧[1] 许光明 LYU Yenan;DING Ren;XU Guangming(Liaoning Provincial College of Communication, Mechatronic Department, Shenyan 110122, China;Key Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang 110819, China)

机构地区：[1]辽宁省交通高等专科学校机电系,辽宁沈阳110122 [2]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110819

出　　处：《铸造技术》2018年第6期1218-1220,共3页Foundry Technology

摘　　要：研究了Al-Ti-C细化剂对双辊铸轧5052铝合金微观组织的影响。结果表明,添加了细化剂的铸轧组织晶粒明显细化,细化剂对改善铸轧板偏析有一定的作用,但作用效果不明显。铸轧板坯冷轧后去应力退火处理的微观组织仍保留了铸轧态组织,添加细化剂对冷轧后再结晶组织仍有一定的遗传性。加入细化剂板坯的抗拉强度和屈服强度显著提高,伸长率没有变化。Effect of Al-Ti-B grain-refiner on microstructure of 5052 aluminum alloy sheets by twin-roll casting （TRC） was studied. The results show that microstructure grain of sheets has been refined significantly when the Al-Ti-B grain-refiner has been added. A small quantity of cast-rolling microstructure has been retained after the annealing treatment. The cast-rolling microstructure added grain-refiner has been inherited after rolling. The grain-refiner can help increase the mechanical properties of aluminum alloy sheet, but the elongation does not change.

关 键 词：细化剂 5052铝合金 双辊铸轧 微观组织 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TG113[金属学及工艺—金属材料]