7075-T7651铝合金厚板热处理工艺研究  

Study of Heat Treatment Process of 7075-T7651Aluminium Alloy Plate

作　　者：张华[1] 谢延翠[1] 于洪伟[1] 

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2002年第3期12-14,11,共4页Light Alloy Fabrication Technology

摘　　要：研究了7075合金淬火温度、转移时间、停放时间、双级时效等因素与组织性能的关系,确定了7075-T7651厚板的生产制度:淬火温度为470℃,转移时间25s内,拉伸量1.5%～2.5%,淬火到时效的间隔时间24h内,双级时效制度为120℃5h+160℃18h,其中二级时效温度是影响板材综合性能的主要因素。The relations of quenching temperature,transfer time,double aging with structure and properties of Alloy7075,are studied.The production institutions of7075-T7651plate are determined.The quenching temperature is470℃.The transfer time is within25seconds.The pre-stretching deformation is1.5%～2.5%.The interval time from quenching to aging is less than24h.The double aging institutions are at120℃for5h and160℃for18h.Among them,the second aging temperature is the primary factor to affect general properties of the plate.

关 键 词：铝合金 厚板 热处理 7075铝合金 T7651状态 飞机 

分 类 号：TG166.3[金属学及工艺—热处理]