bulk metallic glass;
continuous casting;
composite water cold copper-graphite mold;
numerical simulation of casting process;
temperature field;
THERMAL-STABILITY;
FORMING ABILITY;
30;
MM;
DIAMETER;
ALLOYS;
COMPOSITE;
MOLD;
D O I:
10.1590/1516-1439.319814
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
A numerical simulation method was used to analyze the solidification process of Zr-based bulk metallic glass (BMG) during the horizontal continuous casting (HCC) process. The large-scale general-purpose finite element analysis software ANSYS was adopted to develop a temperature field model. The variation of temperature field in the specific area at different time was studied. Its accuracy was verified by the experimental results of Zr48Cu36Ag8Al8 bulk metallic glass continuous casting solidification process. The effects of casting parameters include intermittent casting procedure (drawing and stopping), casting speed, pouring temperature and cooling rate. The results show that the optimum casting speed range is 1-2 mm/s, pouring temperature is 1223 K and cooling rate of 10 mm rod casting is 5 L/min respectively. A fully Zr-based bulk metallic glass whose diameter is 10 mm and length has no limitation has been successfully fabricated.
机构:
Huazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R ChinaHuazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
Zhu, Zhijing
Yi, Chuanyun
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Huazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R ChinaHuazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
Yi, Chuanyun
Shi, Tielin
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Huazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R ChinaHuazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
Shi, Tielin
Gao, Yang
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机构:
Jiangxi Prov Key Lab Numer Control Technol & Appl, Jiujiang 332005, Jiangxi, Peoples R ChinaHuazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
Gao, Yang
Wen, Chi
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机构:
Huazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R ChinaHuazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
Wen, Chi
Liao, Guanglan
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Huazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R ChinaHuazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
机构:
Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R ChinaChinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China
Dai, LH
Liu, LF
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机构:Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China
Liu, LF
Yan, M
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机构:Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China
Yan, M
Wei, BC
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机构:Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China
Wei, BC
Jürgen, E
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机构:Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China