采用铜模吸铸法制备φ2 mm的Fe61Co10Zr5W4B20块体非晶合金,采用XRD、SEM、DSC、硬度和压缩实验研究了非晶合金的结构组织、热稳定性、晶化特征、硬度和压缩性能.该块体非晶合金表现出二级晶化,其玻璃转变温度为561.1℃,晶化温度为619.0℃,第一晶化峰温度为632.6℃,第二晶化峰比之高约117℃;用Kissinger和Ozawa方法获得的玻璃转变激活能分别为595.1 kJ/mol,578.7 kJ/mol,晶化激活能分别为413.9 kJ/mol,407.4 kJ/mol;非晶合金的晶化行为比其玻璃转变表现出更为明显的动力学效应;非晶合金的显微硬度为1207 HV,压缩强度为1707.6 MPa,呈典型的脆性断裂,断口中光滑区与脉状花纹区并存.
参考文献
[1] | R. Hasegawa .Applications of amorphous magnetic alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(0):90-97. |
[2] | Akihisa Inoue;Yoshiyuki Shinohara;Jin Seon Gook .Thermal and Magnetic Properties of Bulk Fe-Based Glassy Alloys Prepared by Copper Mold Casting[J].Materials Transactions, JIM,1995(12):1427-1433. |
[3] | Inoue A;Zhang T;Takeuchi A .Bulk amorphous alloys with high mechanical strength and good soft magnetic properties in Fe-TM-B (TM=IV-VIII group transition metal) system[J].Applied physics letters,1997(4):464-466. |
[4] | T. D. Shen;R. B. Schwarz .Bulk ferromagnetic glasses prepared by flux melting and water quenching[J].Applied physics letters,1999(1):49-51. |
[5] | T. D. SHEN;R. B. SCHWARZ .BULK FERROMAGNETIC GLASSES IN THE Fe-Ni-P-B SYSTEM[J].Acta materialia,2001(5):837-847. |
[6] | Role of yttrium in glass formation of Fe-based bulk metallic glasses[J].Applied physics letters,2003(13):2581-2583. |
[7] | Ponnambalam V;Poon S J et al.Synthesis of iron-based bulk metallic glass as nonferromagntic amorphous steel alloys[J].Applied Physics Letters,2003,83(06):1131-1133. |
[8] | 刘冬艳,王成,张海峰,胡壮麒.铁基块状非晶合金的制备及性能[J].金属学报,2005(02):209-213. |
[9] | Pawlik P;Davies H A et al.Magnetic properties and glass formability Fe61Co10Zr5W4B20 bulk metallic glassy alloy[J].Applied Physics Letters,2003,83(14):2775-2777. |
[10] | Wang WH;Pan MX;Zhao DQ;Hu Y;Bai HY .Enhancement of the soft magnetic properties of FeCoZrMoWB bulk metallic glass by microalloying[J].Journal of Physics. Condensed Matter,2004(21):3719-3723. |
[11] | Yong Hu;Ming Xiang Pan;Lin Liu .Synthesis of Fe-based bulk metallic glasses with low purity materials by multi-metalloids addition[J].Materials Letters,2003(18):2698-2701. |
[12] | Yuan Zizhou;Chen Xueding et al.Kinetics study of non-isothermal crystallization of the metallic Co43Fe20Ta5.5B31.5 glass[J].Alloys and Compounds,2006,407:163-169. |
[13] | Zhang Z F;Eckert J et al.Difference in compressive and tensile fracture mechanisms of Zr59Cu20Al10Ni8Ti3 metallic glass[J].Acta Materialia,2003,51:1167-1179. |
[14] | 郭秀丽,李德俊,王英敏,羌建兵,董闯.块状非晶态合金Zr65Al7.5Ni10Cu17.5的室温单轴压缩断裂行为[J].金属学报,2003(10):1089-1093. |
[15] | 张庆生,张海峰,王爱民,丁炳哲,胡壮麒.Zr55Al10Ni5Cu30块状非晶合金的高温压缩断裂[J].金属学报,2002(08):835-838. |
[16] | Xi XK;Zhao DQ;Pan MX;Wang WH;Wu Y;Lewandowski JJ .Fracture of brittle metallic glasses: Brittleness or plasticity[J].Physical review letters,2005(12):5510-1-5510-4-0. |
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