Abstract��The semisolid slurry of A356�� modified by cerium�� was manufactured by self-developed forced convection rheoforming machine (FCR)�� then the slurry was squeeze casting. Influences of cerium on the primary ��-Al phases��eutectic silicon phases and mechanical properties of semisolid A356 alloy produced by rheo-extrusion casting process were researched. The results indicated that the addition of cerium modified the ��-Al grains and eutectic silicon phases. When the content of cerium was 0.6%�� the refining effect was the best��and the tensile strength of A356 alloy reached 216 MPa and 299 MPa�� respectively�� in the as-cast and T6 state�� which was increased 12.6% and 15.2%�� respectively��compared with the alloy without adding cerium element. Moreover�� the elongation of A356 was greatly improved after the T6 heat treatment.
�ո�����: 2016-04-05
��������: 2017-02-21
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E-mail: kangylin@ustb.edu.cn
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�����ܣ������֣��������������. ϡ��Ce���̬A356�Ͻ����伷ѹ��֯����Ӱ��[J]. �й������ڿ���, 2017, 35(1): 8-13.
LIAO Wan-neng��KANG Yong-lin��QI Ming-fan��WEN Yu-hui. Influence of cerium on the microstructure and mechanical properties of semisolid A356 alloy produced by rheo-extrusion casting process. Chinese Journal of Iron and Steel, 2017, 35(1): 8-13.
2017, Vol. 35 
