| NEW AMORPHOUS Al-La-Y-Ni(Fe)QUATERNARY ALLOYS WITH SUPERIOR STRENGTH AND DUCTILITY |
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| 作者姓名： | LIU Chaosan ZHANG Yongchang SHI Changxu Institute of Metal Research Academia Sinica Shenyang China professor Institute of Metal Reserach Academia Sinica Shenyang China |
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| 作者单位： | LIU Chaosan ZHANG Yongchang SHI Changxu Institute of Metal Research，Academia Sinica，Shenyang，China professor，Institute of Metal Reserach，Academia Sinica，Shenyang，China |
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| 摘 要： | The melt spun ribbons of Al-La-Y-Ni(Fe)quaternary alloys were prepared by a single-roller melt spinning technique in vacuum.Their amorphous nature,mechanical propertiesand tensile fracture surface morphology were investigated.The experimental results showthat amorphous alloys with high strength and good ductility as well as good thermalstability can be achieved in Al-La-Y-Ni(Fe)system,when the alloy contains 85—90at.-% Al and less than 10 at.-% La+Y.The maximum tensile fracture strength(σ_f)and microhardness(HV)are as high as 760 MPa and 294 DPN,respectively.The as-quenched ribbons can be bent 180 degree without fracturing.The dominant factors forformation of amorphous Al-La-Y-Ni(Fe)are the strong attractive interaction among Al,La,Y and a decrease of melting temperature.
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| 收稿时间： | 1993-12-11 |
| 修稿时间： | 1993-12-11 |
NEW AMORPHOUS Al-La-Y-Ni(Fe)QUATERNARY ALLOYS WITH SUPERIOR STRENGTH AND DUCTILITY |
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| LIU Chaosan ZHANG Yongchang SHI Changxu Institute of Metal Research,Academia Sinica,Shenyang,China professor,Institute of Metal Reserach,Academia Sinica,Shenyang,China.NEW AMORPHOUS Al-La-Y-Ni(Fe)QUATERNARY ALLOYS WITH SUPERIOR STRENGTH AND DUCTILITY[J].Acta Metallurgica Sinica(English Letters),1993,6(12):442-446. |
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| Authors: | LIU Chaosan ZHANG Yongchang SHI Changxu Institute of Metal Research Academia Sinica Shenyang China professor |
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| Affiliation: | LIU Chaosan ZHANG Yongchang SHI Changxu Institute of Metal Research,Academia Sinica,Shenyang,China professor,Institute of Metal Reserach,Academia Sinica,Shenyang,China |
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| Abstract: | The melt spun ribbons of Al-La-Y-Ni(Fe)quaternary alloys were prepared by a single- roller melt spinning technique in vacuum.Their amorphous nature,mechanical properties and tensile fracture surface morphology were investigated.The experimental results show that amorphous alloys with high strength and good ductility as well as good thermal stability can be achieved in Al-La-Y-Ni(Fe)system,when the alloy contains 85—90 at.-% Al and less than 10 at.-% La+Y.The maximum tensile fracture strength(σ_f) and microhardness(HV)are as high as 760 MPa and 294 DPN,respectively.The as- quenched ribbons can be bent 180 degree without fracturing.The dominant factors for formation of amorphous Al-La-Y-Ni(Fe)are the strong attractive interaction among Al, La,Y and a decrease of melting temperature. |
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| Keywords: | single-roller melt spinning Al-base quaternary amorphous alloys strength ductility |
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