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Al3Ti基有序金属间化合物的无序化转变和非晶化
DISORDERING AND AMORPHIZATION OF Al3Ti-BASED INTERMETALLICS
【摘要】 经5h的高能球磨,A175Ti25合金由铸态时的四方有序DO22结构转变为无序FCC过饱和固溶体;球磨60h后,仍保持FCC结构待态时具有立方有序L12结构的单相Al67Ti25Mn8合金,其结构随球磨时间的变化步骤为:有序FCC→无序FCC→FCC超微晶+非晶→非晶.
【Abstract】 Upon 5h of milling, the structure of stoichiometric Al3Ti transformed from the as-cast ordered DO22 to disordered FCC and remains unchanged till milling time of 60h. The structural evolution of Al67Ti23Mn8 alloy with ordered L12 was as follows: ordered FCC-disordered FCC→supersaturatedFCC solid solution+partial amorphous→complete amorphous.
【关键词】 金属间化合物;
Al3Ti;
有序—无序转变;
非晶态;
【Key words】 intermetallic compound; Al3Ti; order-disorder transformation; amorphization;
【Key words】 intermetallic compound; Al3Ti; order-disorder transformation; amorphization;
【基金】 国家博士后科学基金
- 【文献出处】 材料研究学报 ,CHINESE JOURNAL OF MATERIAL RESEARCH , 编辑部邮箱 ,1998年05期
- 【分类号】TG111
- 【被引频次】3
- 【下载频次】141