摘要
对比研究了Zr、超声以及Zr和超声复合处理对长周期结构Mg97Y2Cu1合金凝固组织的影响,同时考察了复合处理条件下,不同的超声输出功率、处理时间和施振温度对合金凝固组织的影响。结果表明,Zr和超声均可以显著细化合金的凝固组织,且Zr和超声复合处理对合金凝固组织的细化效果最佳;在复合处理条件下,当超声输出功率在0-900 W范围内,超声处理时间在0-120s范围内,随着输出功率或处理时间的增加,合金的晶粒逐渐细化;在660-730℃范围内,随着超声施振温度的降低,合金的晶粒逐渐细化。
The effects of Zr,ultrasonic and compound treatment of Zr and ultrasonic on solidification structure of Mg97Y2Cu1 alloy with long-period ordered structure were investigated comparatively.Meanwhile,the influences of different ultrasonic power,treating time and vibration temperature on solidifification structure of Mg97Y2Cu1 alloy with compound treatment of Zr and ultrasonic were investigated.The results show that Zr or ultrasonic can refine solidification structure of Mg97Y2Cu1 alloy significantly.Furthermore,effect of compound treatment on refinement of solidified structure exhibits desirable.Under the condition of compound treatment,when the ultrasonic power is at 0-900 Wor treating time is at 0-120s,with the increase of power or treating time,grain of the alloy is refined gradually.When the vibration temperature of ultrasonic is at 660-730 ℃,with the decrease of vibration temperature,grain of the alloy is refined gradually.
作者
刘峰
周全
黄曼青
黄金角
王俊
Liu Feng Zhou Quan Huang Manqing Huang Jinjiao Wang Jun(School of Aeronautical Manufacturing Engineering,Nanchang Hangkong Universit)
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2016年第10期1107-1111,共5页
Special Casting & Nonferrous Alloys
基金
国家自然科学基金资助项目(51261026)
