摘要
选用含钛量为0 1%～0 3%的电解低钛铝合金,分别研究了钛对合金晶粒的细化效果和熔体保温时间对晶粒细化的衰退行为的影响,并与利用熔配加钛方法制得的相应含钛量的低钛铝合金进行了对比。结果表明,随着Ti含量的增加,两种加钛方式获得的低钛铝合金晶粒得到明显细化,晶粒尺寸随Ti含量的变化趋势相同。随着保温时间的延长,所有合金的晶粒尺寸均不同程度发生了粗化,Ti对晶粒的细化效果明显发生了衰退。电解加Ti的合金晶粒细化效果的抗衰退能力优于熔配加Ti的合金,这种趋势对含Ti量为0 1%～0 2%的合金特别明显。
The effects of titanium content on the grain refinement and the holding time in melt furnace on its fading behavior have been investigated by using two series of lowtitanium aluminum alloy(containing 01%～03%Ti) produced by electrolytic method and molten method, respectively.The difference of grain refinement effect between two series of alloys is compared.The results show that the grain size of alloys obviously decreases with raising titanium content and their grain refinement trend is similar.But the grain size evidently increases with prolonging the holding time of melt.The fading behavior of grain refinement effect is distinct for all kinds of alloys.It is also showed that the fading resistance of alloys produced by electrolytic method is superior to that of alloys produced by melting method, especially for the alloys containing 01% ～02% Ti.
出处
《铸造》
CAS
CSCD
北大核心
2003年第9期687-690,共4页
Foundry
关键词
电解生产低钛铝合金
晶粒细化
保温时间
衰退
directly electrolytic producing low-titanium aluminum alloy
grain refinement
holding time
fading
