Acta Metall Sin  2012, Vol. 48 Issue (3): 351-356    DOI: 10.3724/SP.J.1037.2011.00689

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STUDY OF THE PHASE TRANSFORMATION FROM (Fe, Mn)Al6 TO α-Al12(Fe, Mn)3Si IN AA3104 ALUMINUM ALLOY DURING HOMOGENIZATION

ZHANG Yonghao, ZHANG Zhiqing, Robert E. SANDERS, LIU Qing

College of Materials Science and Engineering, Chongqing University, Chongqing 400044

ZHANG Yonghao ZHANG Zhiqing Robert E. SANDERS LIU Qing. STUDY OF THE PHASE TRANSFORMATION FROM (Fe, Mn)Al₆ TO α-Al₁₂(Fe, Mn)₃Si IN AA3104 ALUMINUM ALLOY DURING HOMOGENIZATION. Acta Metall Sin, 2012, 48(3): 351-356.

Abstract References Related Articles Recommended Metrics Download:  PDF(2332KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The effect of heating temperature and holding time on the phase transformation from (Fe, Mn)Al6 to α-Al12(Fe, Mn)3Si in AA3104 aluminum alloy during homogenization was studied by BSE and EDS in SEM. The 3D morphology of the eutectic phases heated at 600 ℃ for different holding times was reconstructed by a novel serial sectioning method. Evolution of the microstructure could be revealed in 3D for the first time. Al spots were observed within the α-Al12(Fe, Mn)3Si phase and counted during different transformation stages. Large number of Al spots disappeared by diffusing into the neighboring matrix after extended heating times, while the volume of the α phase was also decreased at the same time. The microstructure of the α phase after transformation was analyzed, showing ‘duplex interfaces’created by partly transformed particles. The dense holes within α phase particles are believed to promote particle break up during hot rolling of the omogenized material. Key words:  AA3104 aluminum alloy      omogenization      utectic phase      hase transformation      Received:  07 November 2011      ZTFLH:  TG146.2   Fund:  Supported by Fundamental Research Funds for the Central Universities No.CDJRC10130008) Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors ZHANG Yong-Hao ZHANG Zhi-Qing LIU Qiang URL:  https://www.ams.org.cn/EN/10.3724/SP.J.1037.2011.00689     OR     https://www.ams.org.cn/EN/Y2012/V48/I3/351 [1] Engler O, Kong X W, Yang P. Scr Mater, 1997; 37: 1665 [2] Humphreys F J. Acta Metall, 1977; 25: 1323 [3] Vatne H E, Engler O, Nes E. Mater Sci Technol, 1997; 13: 3 [4] Yang P, Engler O. Acta Metall Sin, 1998; 34: 785 (杨平, Engler O. 金属学报, 1998; 34: 785) [5] Alexander D T L, Greer A L. Philos Mag, 2004; 84: 3051 [6] Hamerton R, Cama H, Meredith M W. 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