退火处理对TP2铜管材组织与性能的影响  

Effect of annealing treatment on microstructure and mechanical properties of TP2 copper tubes

作　　者：刘劲松[1,2] 陈大勇[2] 陈立鹏[1] 张士宏[2] 

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159 [2]中国科学院金属研究所,辽宁沈阳110016

出　　处：《材料热处理学报》2016年第3期107-113,共7页Transactions of Materials and Heat Treatment

基　　金：中国科学院战略性新兴产业科技行动计划专项项目(46300378-5)

摘　　要：针对两种不同变形量的TP2铜管材,进行不同退火温度和保温时间的热处理实验。对两种不同管材进行显微组织和力学性能实验,得到温度和保温时间对该管材的组织和性能的影响规律。结果表明,退火温度为影响TP2铜管材组织和性能的主要因素,适当提高温度可以增加试样伸长率;在一定范围内增加保温时间可以有效降低维氏显微硬度。对于大变形量管材,可以适当降低退火温度或者减少保温时间,该两种管坯较为理想退火工艺为退火温度400℃保温时间30-60 min。Influence of annealing temperature and holding time on microstructure and mechanical properties of the TP2 copper tubes was investigated by optical microscope observation,tensile and hardness tests. The results show that the microstructure and mechanical properties of the TP2 copper tubes mainly depend on the annealing temperature. The elongation of the tubes increases by the increasing annealing temperature and the hardness is effectively reduced with the increasing annealing temperature. For the heavily deformed tubes,the annealing temperature and holding time can be decreased moderately. The annealing process parameters with annealing temperature of400 ℃ and holding time of 30 to 60 min are recommended for the drawn TP2 copper tubes based on the experiments.

关 键 词：TP2铜管材 退火温度 保温时间 组织和性能 

分 类 号：TG146.1[一般工业技术—材料科学与工程]