标题：The effect of 0.40%Ce on the liquid structure of eutectic Fe-C alloy
作者：Teng, XY; Liu, HL; Shi, ZQ; Wang, HR; Min, GH; Ye, YF
作者机构：[Teng, X] Key Lab. Liquid Struct. Hered. Mat., Ministry of Education, Shandong University, Jinan 250061, China;[ Liu, H] College of Mechanical Enginee 更多
通讯作者地址：[Teng, XY]Shandong Univ, Minist Educ, Key Lab Liquid Struct & Hered Mat, Jinan 250061, Peoples R China.
来源：ACTA METALLURGICA SINICA
关键词：liquid structure; eutectic Fe-C alloy; Ce; pre-peak
摘要：The liquid structures of Fe-4.30C and Fe-4.30C-0.40Ce alloys are studied by 0-0 X-ray diffractometer. The nearest-neighbor distance in Fe-4.30C alloy is 0.259-0.260 nm at 1473-1673 K, which shows that the liquid Fe-4.30C alloy has fcc-like structure unit according to the Gauss separation of radial distribution function. At the same temperature, the nearest-neighbor distance increased to 0.269-0.271 nm for liquid Fe-4.30C-0.40Ce alloy. There is a pre-peak on the structure factor S(Q), which relates to the Fe-Ce cluster.