US 11,685,976 B2
Method for preparing amorphous particle-modified magnesium alloy surface-gradient composites
Jun Tan, Chongqing (CN); Jiaxing Peng, Chongqing (CN); Jiarong Gao, Chongqing (CN); Hang Zhou, Chongqing (CN); Yiming Chen, Anxiang (CN); Jianbo Li, Chongqing (CN); Xianhua Chen, Chongqing (CN); and Fusheng Pan, Chongqing (CN)
Assigned to Chongqing University, Chongqing (CN)
Filed by Chongqing University, Chongqing (CN)
Filed on Dec. 8, 2022, as Appl. No. 18/77,256.
Claims priority of application No. 202111558992.6 (CN), filed on Dec. 20, 2021.
Prior Publication US 2023/0100782 A1, Mar. 30, 2023
Int. Cl. C22C 23/04 (2006.01); C22C 1/03 (2006.01); C22C 1/11 (2023.01)
CPC C22C 23/04 (2013.01) [C22C 1/03 (2013.01); C22C 1/11 (2023.01)] 5 Claims
OG exemplary drawing
 
1. A method for preparing amorphous particle-modified magnesium alloy surface-gradient composites, wherein the method comprises steps of:
S1 weighing pure magnesium, pure zinc, pure aluminum, pure copper, Mg-5 wt % Mn alloy, and FeCrMoBC amorphous alloy particles;
S2 holding the temperature at 150˜350° C. for the FeCrMoBC amorphous alloy particles weighed at step (1);
S3 mixing the pure magnesium, pure zinc, pure aluminum, pure copper, and Mg-5 wt % Mn alloy weighed at step (1), putting the mixture in a melting and heating furnace under continuous protective gases, gradually raising temperature to 720˜760° C. and melting at a constant temperature for 15˜25 min to obtain a magnesium alloy melt; and
S4 cooling the magnesium alloy melt obtained at step (3) to 600˜635° C., starting mechanical stirring till the temperature is cooled to 570˜615° C., slowly adding the FeCrMoBC amorphous alloy particles obtained at step (2), holding for 2˜5 min after mixing evenly, and cooling the crucible with water to obtain an amorphous particle-modified magnesium alloy surface-gradient composite.