Study on the adiabatic temperature of Al-Ti-C grain refiner synthesized by SHS technique
SHS technique and conventional melting and casting technology were combined and used for the preparation of Al-Ti-C grain refiner alloy.Experimental results show that when SHS reaction occurs to the Al,Ti and C powder reactant in Almelt and the composition proportion factor,n,is between 4 and 10,the effect of composition on the initial temperature of SHS reaction is small and its initial temperature ranges from 810 to 815℃.However,the highest temperature of the melt increases with increasing n values and increases gradually from 845 to 1370℃.in the meantime,when the composition proportion factor for Al,Ti and C powder reactant,n,is greater than 5.95,its adiabatic temperature Td>1800K which conforms to the empirical criterion proposed by Merzhanov et al.The SHS reaction of reactant can accomplish by self-maintenance.
SHS technique Al-Ti-C grain refiner composition proportion factor adiabatic temperature
Li Y L Zhou T G
School of Materials and Metallurgy Northeastern University Shenyang 110004,P.R.China School of Mechanical Engineering Shengyang University Shenyang 110044,P.R.China
国际会议
杭州
英文
3058-3061
2013-03-22（万方平台首次上网日期，不代表论文的发表时间）