金属玻璃基复合材料的制备及断裂韧性测试

功能材料, 2012, 43(10): 1344-1347.

金属玻璃基复合材料的制备及断裂韧性测试

李春燕 ^1, , 寇生中 ^2, , 赵燕春 ^3, , 刘广桥 ^4, , 丁雨田 ^5,

1.兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050 兰州理工大学有色金属合金及加工教育部重点实验室,甘肃兰州730050

2.兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050 兰州理工大学有色金属合金及加工教育部重点实验室,甘肃兰州730050

3.兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050 兰州理工大学有色金属合金及加工教育部重点实验室,甘肃兰州730050

4.兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050 兰州理工大学有色金属合金及加工教育部重点实验室,甘肃兰州730050

5.兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050 兰州理工大学有色金属合金及加工教育部重点实验室,甘肃兰州730050

基金项目: 国家重点基础研究发展计划(973计划)前期研究专项资助项目(201ICB612203) 国家自然科学基金资助项目(50961008,51061008)

关键词：金属玻璃 , 复合材料 , 制备 , 微观组织 , 断裂韧性

Preparation of metallic glass based composites and measurement of the fracture toughness

Keywords： metallic glass , composites , preparation , microstructure , fracture toughness

采用铜模吸铸法制备了（Zr0.55Al0.1Ni0.05Cu0.30）100-xTix（x=0、2、4、6、8）板状哑铃型金属玻璃基复合材料试样。用X射线衍射（XRD）、岛津AG-10TA万能材料力学试验机和JSM-6700F场发射扫描电子显微镜（SEM）对试样的组织结构以及断裂韧性进行了测试。结果表明,当x=0、2、4时,试样为非晶-晶体复合材料,当x=6、8时,试样为晶体材料。表明通过调整Ti的含量可以制备出金属玻璃基复合材料。采用三点弯曲法测定了复合材料的断裂韧性,当x=0、2、4时,试样的断裂韧性KIC值分别为10.529、5.142和3.446MPa.m1/2。

The dumbbell-shaped metallic glass based composites of （Zr0.55Al0.1Ni0.05Cu0.30）100-xTix（x=0、2、4、6、8）were prepared by copper mold casting method. Microstructure and fracture toughness of samples were studied by X-ray diffraction （XRD）, universal testing machine and scanning electron microscope（SEM）. The results in- dicate that metallic glass based composites can be fabricated by adjusting Ti addition. The structure of the alloys were composed of metallic glass and crystal when the Ti content was x= 0,2,4 and the structure of the alloys were crystal when the Ti content was x = 6,8. The fracture toughness of composites which Ti content was x = 0, 2,4 were measured by three point bending method,and the K,c value were 10. 529,5. 142 and 3. 446 MPa · m^1/2 respectively.

参考文献

[1]	胡壮麒,张海峰.块状非晶合金及其复合材料研究进展[J].金属学报,2010(11):1391-1421.
[2]	Inoue A.;Zhang T. .Impact Fracture Energy of Bulk Amorphous Zr_(55)Al_(10)Cu_(30)Ni_5 Alloy[J].Materials transactions,1996(11):1726-1729.
[3]	Inoue A.;Kawamura Y. .Viscous Flow Deformation in Supercooled Liquid State of Bulk Amorphous Zr_(55)A1_(10)Ni_5Cu_(30) Alloy[J].Materials transactions,1996(6):1337-1341.
[4]	Inoue A .[J].Materials Science and Engineering,1999,A267(02):171-183.
[5]	M. W. Chen;T. Zhang;A. Inoue .Quasicrystals in a partially devitrified Zr_(65)Al_(7.5)Ni_(10)Cu_(12.5)Ag_(5) bulk metallic glass[J].Applied physics letters,1999(12):1697-1699.
[6]	Fan C;Ott R T;Hufnagel T C.[J].Applied Physics Letters,2002(81):1020-1022.
[7]	Hays CC.;Johnson WL.;Kim CP. .Microstructure controlled shear band pattern formation and enhanced plasticity of bulk metallic glasses containing in situ formed ductile phase dendrite dispersions[J].Physical review letters,2000(13):2901-2904.
[8]	He G;Eckert J .[J].Materials Research Society Symposi-um Proceedings,2003,754:327-330.
[9]	束德林.工程材料力学性能[M].北京:机械工业出版社,2006
[10]	周玉.材料分析方法[M].北京:机械工业出版社,2004

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