Microstructure Evolution of Semi-solid ZCuSn10 Alloy Prepared by Rheological Squeeze Casting
LI Yongkun1, LI Lu1,2, ZHOU Rongfeng1,2, ZHANG Yanfeng1, XIAO Han1, JIANG Yehua1, LU Denghong1
1 School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093; 2 Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093
Abstract: The ZCuSn10 alloy was prepared by conventional casting and the stainless steel rotating-rod induced nucleation(RRIN) in the experiment. The effect of process parameters on the microstructure of ZCuSn10 alloy semi-solid squeeze part was investigated. The microstructure evolution of semi-solid ZCuSn10 flange part produced by the optimum process parameters were analyzed. The results show that the effect of different process parameters on the microstructure of extruded ZCuSn10 alloy is different, and the internal structure of squeeze part is consistent with the slurry. The microstructure of the slurry prepared at the speed of 500 r/min was used to obtain the microstructure with good solid-liquid synergetic liquidity. The heat dissipation of the specimen was faster near punch position and the microstructure was mainly solid phase. The microstructure at the middle and at the front of the sample are solid-liquid two-phase coexistence of granular or near spherical semi-solid microstructure.
1 Çuvalc H, Çelik H S. Investigation of the abrasive wear behaviour of ZA-27 alloy and CuSn10 bronze[J]. J Mater Sci,2011,46(14):4850. 2 ünlü B S, Atik E. Evaluation of effect of alloy elements in copper based CuSn10 and CuZn30 bearings on tribological and mechanical properties[J]. J Alloys Compd,2010,489(1):262. 3 Wang C C, Jia C C, Shen C X, et al. CuSn10 oilless bearings prepared by sphericized powder[J]. Mater Sci Eng Powder Metall,2013,18(4):572(in Chinese). 王聪聪, 贾成厂, 申承秀, 等. 球形化处理铜锡粉末制备 CuSn10 含油轴承[J]. 粉末冶金材料科学与工程,2013,18(4):572. 4 Afshari E, Ghambari M, Abdolmalek H. Production of CuSn10 bronze powder from machining chips using jet milling[J]. Int J Adv Manufactur Technol,2017,88(3):1. 5 Ünlü B S, Atik E, Meric C. Effect of loading capacity (pressure-velocity) to tribological properties of CuSn10 bearings[J]. Mater Design,2007,28(7):2160. 6 Chen X, Wang Z, Ding D, et al. Strengthening and toughening strategies for tin bronze alloy through fabricating in-situ nanostructured grains[J]. Mater Design,2015,66(2):60. 7 Blawert C. Metal matrix composites: Custom-made materials for automotive and aerospace engineering[M].Berlin:Wiley-VCH,2006:295. 8 Wu P A. Centrifugal casting large copper sleeves[J]. Spec Cast Nonferrous Alloys,2014,34(5):517(in Chinese). 吴平安. 大型铜套的离心铸造[J]. 特种铸造及有色合金,2014,34(5):517. 9 Spencer D B, Mehrabian R, Flemings M C. Rheological behavior of Sn-15 pct Pb in the crystallization range [J]. Metall Trans A,1972,3(7):1925. 10 Flemings M C. Behavior of metal alloys in the semi-solid state [J]. Metall Trans A,1991,22(5):957. 11 Fan Z . Semisolid metal processing [J]. Int Mater Rev,2002,47(2):49. 12 毛卫民. 半固态金属成形技术[M]. 北京:机械工业出版社,2004:43. 13 Zhou R F, Jiang Y H, Zhou R. Refining and spheroidizing of primary phase in high Cr cast iron during inclined plate cooling [J]. Trans Mater Heat Treatment,2008,29(6):126(in Chinese). 周荣锋,蒋业华,周荣. 高铬铸铁过流冷却过程中初生相的细化球化 [J]. 材料热处理学报,2008,29(6):126. 14 Lu S L, Wu S S, Dai W, et al. Preparation of 5052 aluminum alloy semi-solid slurry by ultrasonic vibration[J]. Spec Cast Nonferrous Alloys,2010,30(4):326(in Chinese). 吕书林, 吴树森, 戴维, 等. 超声振动制备 5052 合金半固态浆料的研究[J]. 特种铸造及有色合金,2010,30(4):326. 15 Mao W M. Progress in semi-solid metal rheocasting technologies [J]. Spec Cast Nonferrous Alloys,2010,30(1):24(in Chinese). 毛卫民. 半固态金属流变铸造技术的研究进展[J]. 特种铸造及有色合金,2010,30(1):24. 16 Zhong Z L, Zuo X Q, Dong X R, et al. Progress in semi-solid for-ming technology for high strength aluminum alloy[J]. Mater Rev:Rev,2013,27(19):122(in Chinese). 钟子龙, 左孝青, 董晓蓉, 等. 高强铝合金半固态成形技术研究进展[J]. 材料导报:综述篇,2013,27(10):122. 17 Li M Q, Lu Y L, Jiang H T, et al. Modeling and application of deformation behavior for the semi-solid forming [J]. Mater Rev:Rev,2009,23(2):1(in Chinese). 李淼泉, 卢雅琳, 江海涛, 等. 半固态流变行为模型及应用[J]. 材料导报:综述篇,2009,23(2):1. 18 Jirková H, Aišman D, Rubešová K, et al. Semi-solid processing of high-chromium tool steel to obtain microstructures without carbide network[J]. Mater Sci Eng,2017,179(1):1. 19 Chen Z B, Li L, Zhou R F, et al. Influence of rotating-rod induced nucleation on solidification microstructure of Al-25％Si alloy [J]. Trans Mater Heat Treatment,2014,35(9):39(in Chinese). 陈宗宝,李璐,周荣锋,等. 转棒诱导形核对Al-25%Si合金凝固组织的影响[J]. 材料热处理学报,2014,35(9):39. 20 Li Y K, Li L, Zhou R F, et al. Preparation of semi-solid Al-23Si-4.4Fe-3Cu-1Mg alloy slurry by rotating-rod induced nucleation[J]. Spec Cast Nonferrous Alloys,2016,36(1):31(in Chinese). 李永坤, 李璐, 周荣锋, 等. 转棒诱导形核法制备 Al-23Si-4.4 Fe-3Cu-1Mg 合金半固态浆料[J]. 特种铸造及有色合金,2016,36(1):31. 21 Huang W S, Yan H, Huang B H. Numerical simulation of rheoforming of Al2Y/AZ91 magnesium matrix composites[J]. Chinese J Rare Metals,2016,40(8):776(in Chinese). 黄文先,闫洪,黄碧浩. Al2Y/AZ91镁基复合材料流变成形数值模拟[J]. 稀有金属,2016,40(8):776. 22 Xiao H, Chen Z B, Lu C W, et al. Microstructure evolution of ZCuSn10 copper alloy prepared by semi-solid squeeze casting[J]. Trans Mater Heat Treatment,2015,36(12):37(in Chinese). 肖寒,陈泽邦,陆常翁,等. 半固态挤压铸造ZCuSn10铜合金的组织演变[J]. 材料热处理学报,2015,36(12):37.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2017, Vol. 31 
