Abstract：The element distribution analysis for the Al-Si casting aluminum alloys has been done by metal original position analyzer(OPA). The quantitative distribution analysis results of Si, Fe, Cu, Mn and Ti have been obtained by selecting suitable spectrum reference materials and optimizing the instrumental parameters. The content results of five elements by OPA method have good coincidence with the values determined byspark source atomic emission spectrometer. The scanning analysis results show that the distribution of Si, Cu and Ti is homogeneous and some obvious segregation of Fe and Mn has been found in two real aluminum alloys and the content distributions of two elements are very similar. It can be concluded thatthere are some compound of Fe and Mn in casting aluminum alloys by the result of multi-element spectrum channel combination analysis. The conclusion also has good agreement with the results by scanning electron microscope and energy spectrum analysis.
李冬玲，程海明，司 红，张 勇，王海舟. 铝硅系铸造铝合金的原位统计分布分析[J]. 冶金分析, 2012, 32(10): 37-44.
LI Dong-ling, CHENG Hai-ming, SI Hong, ZHANG Yong, WANG Hai-zhou. Original position statistic distribution analysis for aluminum/silicon casting aluminum alloys. , 2012, 32(10): 37-44.
［7］ WANG Hai-zhou, Zhao Pei, CHEN Ji-wen. Original position statistic distribution analysis study of low alloy steel continuous casting billet ［J］. Science in China Ser. E Engineering & Materials Science, 2005, 48(1): 104-115.
［8］ GAO Hong-bin, YUAN Liang-jing, WANG Hai-zhou. Original position statistic distribution analysis for Al inclusion in continuous-casting thin slab［J］.Advanced Materials Research, 2007, (15-17):798-803.
［9］ LI Dong-ling, Wang Hai-zhou. Determination of inclusions of boron and titanium in steel by original position statistic distribution analysis technique［J］.Materials Science Forum, 2007, (539-543):4274-4276.
