电弧高温制备Al-Ti-C中间合金  

Synthesis of Al-Ti-C Master Alloy by High Temperature Arc

作　　者：张胜全[1] 王鹏[1,2] 王准[1] 

机构地区：[1]兰州理工大学有色金属先进材料加工与再利用省部共建国家重点实验室 [2]兰州理工大学有色金属合金及加工教育部重点实验室

出　　处：《特种铸造及有色合金》2018年第1期96-99,共4页Special Casting & Nonferrous Alloys

基　　金：甘肃省科技重大专项计划资助项目(145RTSA004)

摘　　要：研究了新型Al-Ti-C中间合金的制备方法。电弧高温能使Al与C更好地熔合,解决了Al与C润湿性差的问题。利用SEM、XRD、EDS对制备的Al-Ti-C中间合金进行分析。结果表明,电弧高温下制备的Al-Ti-C中间合金由Al、TiAl_3和TiC组成。经过HF酸处理的石墨、钛粉在电流为75A,铝液温度为800℃条件下与纯铝反应,制备出效果最好的AlTi-C中间合金。A new method to prepare Al-Ti-C master alloy was proposed. Arc temperature can make graphite and aluminum better mix together, which can resolve the problems of poor wettability between graphite and aluminum. By using scanning electron microscopy （SEM）, X ray diffraction （XRD）, energy spectrum analysis （EDS） , Al-Ti-C master alloy prepared was analyzed. It can be seen that Al-Ti-C master alloy prepared by high temperature arc in pure molten aluminum is composed of Al, TiAl3 and TiC. The Al-Ti-C master alloy with desirable effects was prepared by reaction of carbon and titanium with aluminum under current of 75 A and molten aluminum temperature of 800℃.

关 键 词：电弧高温 AL-TI-C TIAL3 TIC 

分 类 号：TB331[一般工业技术—材料科学与工程] TG146.21[金属学及工艺—金属材料]