Acta Metall Sin  2004, Vol. 40 Issue (3): 245-250     DOI:

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Formation of （Ca n-x, Na x）Pm Compounds in Eutectic Al--Si Piston Alloys and Invalidation of Phosphorus Modification Effect

LIU Xiangfa; QIAO Jinguo; ZHANG Xihua; LIU Xiangjun; BIAN Xiufang

Key Laboratory of Liquid Structure and Heredity of Materials; Ministry of Education

LIU Xiangfa; QIAO Jinguo; ZHANG Xihua; LIU Xiangjun; BIAN Xiufang. Formation of （Ca n-x, Na x）Pm Compounds in Eutectic Al--Si Piston Alloys and Invalidation of Phosphorus Modification Effect. Acta Metall Sin, 2004, 40(3): 245-250 .

Abstract References Related Articles Recommended Metrics Download:  PDF(25645KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The influence of Ca and Na on phosphorus modification performance, the relation between constitution of compounds containing--phosphorus and modification performance in eutectic Al--Si piston alloys were investigated by optical microscopy and electron probe microanalyzers (EPMA). It has been shown that Ca or (and) Na can make phosphorus modification inefficiency and even Na modification efficiency appears, the abnormal phenomena is due to the formation of (Ca n-x, Na x)P m compounds which is more stable than AlP phases in the melt. However, the phosphorus modification efficiency can recover after refining treatment by C 2 Cl 6, because of (Ca n-x, Na x)P changing to (Al 5, Mg 0.85, Ca 0.15) P 3.4which can serve as the nuclei of primary Si phases. Key words:  eutectic Al--Si alloy      phosphorus modification treatment       Received:  26 February 2003      ZTFLH:  TG146.2   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors LIU Xiangfa QIAO Jinguo ZHANG Xihua LIU Xiangjun BIAN Xiufang URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2004/V40/I3/245 [1] Ben H. In: Reidar H ed, Light Metals 1997, Orlando, Florido: The Mineral Metals Society, 1997:801 [2] United editing group of Cast Nonferrous Alloys and Melting. Cast Nonferrous Alloys and Melting. Beijing; National Defense Industry Press, 1980:13(《铸造有色合金及其熔炼》联合编写组编.铸造有色合金及其熔炼.北京:国防工业出版社,1980:13) [3] Cantor B. Mater Sci Eng, 1997: 226-228:151 [4] Li H, Bian X F, Liu X F, Ma J J. Chin J Nonferrous Met. 1996; 6(4) : 43(李辉,边秀房,刘相法,马家骥.中国有色金属学报,1996;6(4) :43) [5] Liu X F, Qiao J G, Song X G, Bian X F, Zhu L M, Zhang Y L. Spec Cast Nonferrous Alloys, 2002; (6) : 43(刘相法,乔进国,宋西贵,边秀房,朱利民,张屹林.特种铸造及有色合金,2002;(6) :43) [6] David W. Mason. In: Evans J ed, Light Metals 1995, Las Vegas, Nevada: The Mineral Metals Society, 1995:1019 [1] . Microstructure and Mechanical Properties of As-cast and Laser Powder Bed Fused AlCoCrFeNi2.1 Eutectic High Entropy Alloy[J]. 金属学报, 0, (): 0-0. [2] ZHU Zhihao, CHEN Zhipeng, LIU Tianyu, ZHANG Shuang, DONG Chuang, WANG Qing. Microstructure and Mechanical Properties of As-Cast Ti-Al-V Alloys with Different Proportion of α / β Clusters[J]. 金属学报, 2023, 59(12): 1581-1589. [3] MA Guonan, ZHU Shize, WANG Dong, XIAO Bolv, MA Zongyi. Aging Behaviors and Mechanical Properties of SiC/Al-Zn-Mg-Cu Composites[J]. 金属学报, 2023, 59(12): 1655-1664. [4] LOU Feng, LIU Ke, LIU Jinxue, DONG Hanwu, LI Shubo, DU Wenbo. Microstructures and Formability of the As-Rolled Mg- xZn-0.5Er Alloy Sheets at Room Temperature[J]. 金属学报, 2023, 59(11): 1439-1447. [5] . Hot Deformation Behavior of Ti30Ni50Hf20 High Temperature Shape Memory Alloy[J]. 金属学报, 0, (): 0-0. [6] QI Zhao, WANG Bin, ZHANG Peng, LIU Rui, ZHANG Zhenjun, ZHANG Zhefeng. Effects of Stress Ratio on the Fatigue Crack Growth Rate Under Steady State of Selective Laser Melted TC4 Alloy with Defects[J]. 金属学报, 2023, 59(10): 1411-1418. [7] LI Xiaobing, QIAN Kun, SHU Lei, ZHANG Mengshu, ZHANG Jinhu, CHEN Bo, LIU Kui. Effect of W Content on the Phase Transformation Behavior in Ti-42Al-5Mn- xW Alloy[J]. 金属学报, 2023, 59(10): 1401-1410. [8] LI Jingren, XIE Dongsheng, ZHANG Dongdong, XIE Hongbo, PAN Hucheng, REN Yuping, QIN Gaowu. Microstructure Evolution Mechanism of New Low-Alloyed High-Strength Mg-0.2Ce-0.2Ca Alloy During Extrusion[J]. 金属学报, 2023, 59(8): 1087-1096. [9] . Research Progress on Additive Manufacturing TiAl Alloy[J]. 金属学报, 0, (): 0-0. [10] . Evolution of Macrosegregation During Three-Stage Vacuum Arc Remelting of Titanium Alloys[J]. 金属学报, 0, (): 0-0. [11] FENG Aihan, CHEN Qiang, WANG Jian, WANG Hao, QU Shoujiang, CHEN Daolun. Thermal Stability of Microstructures in Low-Density Ti2AlNb-Based Alloy Hot Rolled Plate[J]. 金属学报, 2023, 59(6): 777-786. [12] WANG Furong, ZHANG Yongmei, BAI Guoning, GUO Qingwei, ZHAO Yuhong. First Principles Calculation of Al-Doped Mg/Mg2Sn Alloy Interface[J]. 金属学报, 2023, 59(6): 812-820. [13] . Effect of powder particle size on Forming of shrouded impeller[J]. 金属学报, 0, (): 0-0. [14] ZHANG Dongyang, ZHANG Jun, LI Shujun, REN Dechun, MA Yingjie, YANG Rui. Effect of Heat Treatment on Mechanical Properties of Porous Ti55531 Alloy Prepared by Selective Laser Melting[J]. 金属学报, 2023, 59(5): 647-656. [15] LIU Manping, XUE Zhoulei, PENG Zhen, CHEN Yulin, DING Lipeng, JIA Zhihong. Effect of Post-Aging on Microstructure and Mechanical Properties of an Ultrafine-Grained 6061 Aluminum Alloy[J]. 金属学报, 2023, 59(5): 657-667. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed