Mechanical and Magnetic Properties of New (Fe,Co,Ni)-B-Si-Ta Bulk Glassy Alloys

doi:10.1007/s40195-017-0576-5

Abstract

Abstract:

The alloying effects of the like-atom substitution of Ni and Co for Fe on the various properties of Fe₇₀B_16.7Si_8.3Ta₅ metallic glass are investigated in this present work. New Fe-based bulk glassy alloys, namely Fe_60-_xCo_xNi₁₀B_16.7Si_8.3Ta₅ (at.%; x = 10, 20 and 30) with critical diameters up to 1.5 mm, were made by means of copper mold casting. A new glass-forming ability indicator, viz., the enthalpy of supercooled liquid, has been introduced for assessment of the glass-forming abilities (GFAs) of these Fe-based multi-component alloys. Nano-indentation results indicate that the calculated elastic modulus and hardness of the bulk glassy alloys are lower than those of the Fe₇₀B_16.7Si_8.3Ta₅ alloy. Among these bulk glassy alloys, Fe₇₀B_16.7Si_8.3Ta₅ exhibits the large elastic modulus and hardness with values of 178 ± 1 GPa and 12.9 ± 0.1 GPa, respectively. All the bulk glassy alloys exhibit good soft magnetic properties with high saturation magnetization B_s ~ 0.75-1.04 T but low coercive force H_c ~ 0.2-5.2 A/m.

Key words: (Fe,Co,Ni)-B-Si-Ta bulk glass alloys, Glass-forming ability, Mechanical property, Magnetic property

Yao-Xiang Geng, Xin Lin, Yu-Xin Wang, Jian-Bing Qiang, Ying-Min Wang, Chuang Dong. Mechanical and Magnetic Properties of New (Fe,Co,Ni)-B-Si-Ta Bulk Glassy Alloys[J]. Acta Metallurgica Sinica (English Letters), 2017, 30(7): 659-664.

Figures/Tables 7

Fig. 1 X-ray diffraction patterns of the melt-spun ribbons a, as-cast rods with the critical diameters b and the rod samples with a diameter larger than the critical value c of Fe70B16.7Si8.3Ta5 and Fe60-xCoxNi10B16.7Si8.3Ta5 (x = 0, 10, 20 and 30) alloys

Fig. 2 DSC a and DTA b curves of Fe70B16.7Si8.3Ta5 and Fe60-xCoxNi10B16.7Si8.3Ta5 (x = 0, 10, 20 and 30) glassy alloys

Table 1 Thermal, mechanical and soft magnetic properties of Fe70B16.7Si8.3Ta5 and Fe60-xCoxNi10B16.7Si8.3Ta5 glassy alloys

Compositions	x	d_c (mm)	T_g (K)	T_x (K)	ΔT_x (K)	ΔH_sup (J/g)	T_l (K)	T_rg	H_v (GPa)	H_N (GPa)	E (GPa)	B_s (T)	H_c (A/m)
Fe₇₀Ta₅B_16.67Si_8.33	-	1.0	858	889	31	0.7	1479	0.580	11.1 ± 0.2	12.9 ± 0.1	178 ± 1	1.02	1.0
Fe₆₀Ni₁₀Ta₅B_16.67Si_8.33	0	1.0	845	881	36	2.6	1438	0.588	10.7 ± 0.1	11.5 ± 0.3	163 ± 1	1.04	0.2
Fe₅₀Co₁₀Ni₁₀Ta₅B_16.67Si_8.33	10	1.5	850	885	35	4.6	1434	0.593	10.8 ± 0.3	12.1 ± 0.1	158 ± 1	0.93	1.1
Fe₄₀Co₂₀Ni₁₀Ta₅B_16.67Si_8.33	20	1.5	845	885	40	7.1	1405	0.601	10.9 ± 0.1	11.3 ± 0.4	144 ± 3	0.83	2.3
Fe₃₀Co₃₀Ni₁₀Ta₅B_16.67Si_8.33	30	1.5	849	886	37	8.2	1373	0.618	11.0 ± 0.2	12.7 ± 0.3	159 ± 3	0.75	5.2

Fig. 3 Variations of dc, Trg, ΔHsup and ΔTx against x in Fe60-xCoxNi10B16.7Si8.3Ta5a and [(Co1-xFex) 0.75B0.2Si0.05]96Nb4b glassy alloys

Fig. 4 Average load-displacement (P-h) curves of the Fe70B16.7Si8.3Ta5 and Fe60-xCoxNi10B16.7Si8.3Ta5 (x = 0, 10, 20 and 30) bulk glassy alloys measured by nano-indentation

Fig. 5 Optical micrographs of the Vicker’s hardness indentation of a Fe70B16.7Si8.3Ta5, b Fe60Ni10B16.7Si8.3Ta5, c Fe50Ni10Co10B16.7Si8.3Ta5, d Fe30Ni10Co30B16.7Si8.3Ta5 bulk glassy alloys under a 500 g load

Fig. 6 Hysteresis B-H curves of the Fe70B16.7Si8.3Ta5 and Fe60-xCoxNi10B16.7Si8.3Ta5 glassy ribbons

References

[1]	T. Egami, Rep. Prog. Phys. 47, 1605(1984)
[2]	R. Hasegawa, J. Magn. Magn. Mater. 100, 1(1991)
[3]	M.E. Prog. Mater Sci. 44, 300(1999)
[4]	G.E. Fish, Proc. IEEE 78, 947 (1990)
[5]	A. Inoue, Y. Shinohara, J.S. Gook, JIM 36, 1427 (1995)
[6]	C. Suryanarayana, A. Inoue, Int. Mater. Rev. 58, 131(2013)
[7]	A. Inoue, B.L. Shen, Mater. Trans. 43, 766(2002)
[8]	Y.X. Geng, Y.M. Wang, J.B. Qiang, G.F. Zhang, C. Dong, O. Tegus, J.Z. Sun, Intermetallics 67, 138 (2015)
[9]	Y.X. Geng, Y.M. Wang, Z.R. Wang, H.B. Wang, J.B. Qiang, C. Dong, O. Tegus, Mater. Des. 106, 69(2016)
[10]	Y.X. Geng, K.M. Han, Y.M. Wang, J.B. Qiang, Q. Wang, C. Dong, G.F. Zhang, O. Tegus, P. H?ussler, Acta Metall. Sin. 51, 1017-1024 (2015). (in Chinese)
[11]	S. Báez, I. Betancourt, I.A. Figueroa, Acta Metall. Sin. 23, 401 (2010). (Engl. Lett)
[12]	A. Takeuchi, A. Inoue, Mater. Trans. 46, 2817(2005)
[13]	R. Li, S. Kumar, M. Stoica, S. Roth, J. Eckert, J. Phys. D Appl. Phys. 42, 085006(2009)
[14]	J. Torrens-Serra, P. Bruna, M. Stoica, S. Roth, J. Eckert, J. Non-Cryst, Solids 367, 30 (2013)
[15]	C. Dong, Q. Wang, J.B. Qiang, Y.M. Wang, N. Jiang, G. Han, Y.H. Li, J. Wu, J.H. Xia, J. Phys. D Appl. Phys. 40, R273(2007)
[16]	W.C. Oliver, G.M. Pharr, J. Mater. Res. 19, 3(2004)
[17]	B. Shen, A. Inoue, C. Chang, Appl. Phys. Lett. 85, 4911(2004)
[18]	T. Bitoh, A. Makino, A. Inoue, A.L. Greer, Appl. Phys. Lett. 88, 182510(2006)
[19]	C.T. Chang, B.L. Shen, A. Inou, Appl. Phys. Lett. 88, 11901(2006)
[20]	B.L. Shen, C.T. Chang, A. Inoue, Intermetallics 15, 9 (2007)
[21]	H.X. Li, S.L. Wang, S. Yi, Z.B. Jiao, Y. Wu, Z.P. Lu, J. Magn. Magn. Mater. 321, 2833(2009)
[22]	H.X. Li, H.Y. Jung, S. Yi, J. Magn. Magn. Mater. 320, 241(2008)
[23]	H. Ling, Q. Li, H. Li, J. Zhang, Y. Dong, C. Chang, Y. Seonghoon, J. Appl. Phys. 115, 204901(2014)
[24]	F.X. Qin, Y. Zhou, C. Ji, Z.H. Dan, G.Q. Xie, S. Yang, Acta Metall. Sin. 29, 1101 (2016). (Engl. Lett)
[25]	J.J. Si, T. Wang, Y.D. Wu, Y.H. Cai, X.H. Chen, W.Y. Wang, Z.K. Liu, D. Hui, Appl. Phys. Lett. 106, 251905(2015)
[26]	H.W. Zhang, G. Subhash, L.J. Kecskes, R.J. Dowding, Scr. Mater. 49, 447(2003)
[27]	S. Bhattacharya, E.A. Lass, S.J. Poon, G.J. Shiflet, M. Rawlings, M. Daniil, M.A. Willard, J. Appl. Phys. 111, 63906(2012)
[28]	K. Amiya, A. Urata, N. Nishiyama, A. Inoue, J. Appl. Phys. 97, 10F913 (2005)