Novel (CoFe2NiV0.5Mo0.2)100-xNbx Eutectic High-Entropy Alloys with Excellent Combination of Mechanical and Corrosion Properties

doi:10.1007/s40195-020-01072-6

Abstract

Abstract:

The emergence of eutectic high-entropy alloys (EHEAs) offers new insights into the design of next generation structural alloys, which is due to their stable dual-phase microstructure and outstanding mechanical properties from room to elevated temperatures. In this work, a series of (CoFe₂NiV_0.5Mo_0.2)_100-_xNb_x (0 ≤ x ≤ 12) EHEAs were designed and prepared via vacuum arc-melting. Typical eutectic microstructure composing lamellar face-centered cubic solid solution phase and C14 Laves phase appears in the as-cast EHEA when x = 9. The microstructure turns to hypoeutectic or hypereutectic when x is below or beyond that critical value accordingly. The volume fraction of the hard Laves phase is proportional to the Nb addition, leading to the strength increment yet at the expense of ductility at room temperature. In particular, the EHEA having 4 at% Nb shows a compressive strength of 2.1 GPa with an elongation to fracture of 45%, while EHEAs containing 9 and 10 at% Nb exhibit ultrahigh yield strengths of over 1.4 GPa. The effect of Nb addition on the corrosion resistance of this Cr-free EHEA system was also studied. The EHEA containing 9 at% Nb has the best anti-corrosion performance in the 3.5 wt% NaCl solution at 298 ± 1 K, indicating a good combination of mechanical and corrosion properties.

Key words: Eutectic high entropy alloys, Laves phase, Microstructure, Mechanical properties, Corrosion property

Ren Li, Jing Ren, Guo-Jia Zhang, Jun-Yang He, Yi-Ping Lu, Tong-Min Wang, Ting-Ju Li. Novel (CoFe₂NiV_0.5Mo_0.2)_100-_xNb_x Eutectic High-Entropy Alloys with Excellent Combination of Mechanical and Corrosion Properties[J]. Acta Metallurgica Sinica (English Letters), 2020, 33(8): 1046-1056.

Figures/Tables 14

References 40

[1]	J.W. Yeh, S.K. Chen, S.J. Lin, J.Y. Gan, T.S. Chin, T.T. Shun, C.H. Tsau, S.Y. Chang, Adv. Eng. Mater. 6, 299 (2004) DOI URL
[2]	B. Cantor, I.T.H. Chang, P. Knight, A.J.B. Vincent, Mater. Sci. Eng. A 375, 213 (2004)
[3]	Y. Zhang, T.T. Zuo, Z. Tang, M.C. Gao, K.A. Dahmen, P.K. Liaw, Z.P. Lu, Prog. Mater. Sci. 61, 1 (2014)
[4]	Z.M. Li, K.G. Pradeep, Y. Deng, D. Raabe, C.C. Tasan, Nature 534, 227 (2016) URL PMID
[5]	J.Y. He, H. Wang, H.L. Huang, X.D. Xu, M.W. Chen, Y. Wu, X.J. Liu, T.G. Nieh, K. An, Z.P. Lu, Acta Mater. 102, 187 (2016)
[6]	Y.P. Lu, X.Z. Gao, L. Jiang, Z.N. Chen, T.M. Wang, J.C. Jie, H.J. Kang, Y.B. Zhang, S. Guo, H.H. Ruan, Y.H. Zhao, Z.Q. Cao, T.J. Li, Acta Mater. 124, 143 (2017)
[7]	Y.X. Zhuang, W.J. Liu, P.F. Xing, F. Wang, J.C. He, Acta Met- all. Sin. (Engl. Lett.) 25, 124 (2012)
[8]	J.B. Cheng, D. Liu, X.B. Liang, B.S. Xiu, Acta Metall. Sin. (Engl. Lett.) 27, 1031 (2014)
[9]	X.L. Shang, Z.J. Wang, Q.F. Wu, J.C. Wang, J.J. Li, J.K. Yu, Acta Metall. Sin. (Engl. Lett.) 32, 41 (2018) DOI URL
[10]	F. He, Z.J. Wang, P. Cheng, Q. Wang, J.J. Li, Y.Y. Dang, J.C. Wang, C.T. Liu, J. Alloys Compd. 656, 284 (2016) DOI URL
[11]	W.Y. Huo, H. Zhou, F. Fang, Z.H. Xie, J.Q. Jiang, Mater. Des. 134, 226 (2017)
[12]	W.Y. Huo, H. Zhou, F. Fang, X.F. Zhou, Z.H. Xie, J.Q. Jiang, J. Alloys Compd. 735, 897 (2018)
[13]	D.L. Anton, D.M. Shah, Mater. Sci. Eng. A 410, 153 (1992)
[14]	L. Machon, G. Sauthoff, Intermetallics 4, 469 (1996)
[15]	D.J. Thoma, F. Chu, P. Peralta, P.G. Kotula, K.C. Chen, T.E. Mitchell, Mater. Sci. Eng. A 239, 251 (1997)
[16]	B.A. Senior, Mater. Sci. Eng. A 119, L5 (1989)
[17]	D.C. Kong, C.F. Dong, X.Q. Ni, L. Zhang, C. Man, J.Z. Yao, Y.C. Ji, Y.P. Ying, K. Xiao, X.Q. Cheng, X.G. Li, J. Alloys Compd. 785, 826 (2019)
[18]	Y. Zhang, Y.J. Zhou, J.P. Lin, G.L. Chen, P.K. Liaw, Adv. Eng. Mater. 10, 534 (2008) DOI URL
[19]	X. Yang, Y. Zhang, Mater. Chem. Phys. 132, 233 (2012)
[20]	M.C. Troparevsky, J.R. Morris, P.R.C. Kent, A.R. Lupini, G.M. Stocks, Phys. Rev. X 5, 11 (2015)
[21]	M.C. Troparevsky, J.R. Morris, M. Daene, Y. Wang, A.R. Lupini, G.M. Stocks, JOM 67, 2350 (2015) DOI URL
[22]	R. Sriharitha, B.S. Murty, R.S. Kottada, Intermetallics 32, 119 (2013) DOI URL
[23]	G.A. Salishchev, M.A. Tikhonovsky, D.G. Shaysultanov, N.D. Stepanov, A.V. Kuznetsov, I.V. Kolodiy, A.S. Tortika, O.N. Sen- kov, J. Alloys Compd. 591, 11 (2014)
[24]	S.Q. Fang, W.P. Chen, Z.Q. Fu, Mater. Des. 54, 973 (2014)
[25]	C.M. Liu, H.M. Wang, S.Q. Zhang, H.B. Tang, A.L. Zhang, J. Alloys Compd. 583, 162 (2014)
[26]	C. Ng, S. Guo, J. Luan, S.Q. Shi, Intermetallics 31, 165 (2012) DOI URL
[27]	Z. Wang, Y. Huang, Y. Yang, J. Wang, C.T. Liu, Scr. Mater. 94, 28 (2012) DOI URL
[28]	S. Guo, C. Ng, J. Lu, C.T. Liu, J. Appl. Phys. 109, 103505 (2011)
[29]	Z. Wu, H. Bei, F. Otto, G.M. Pharr, E.P. George, Intermetallics 46, 131 (2014)
[30]	C. Pang, Q. Wang, R.Q. Zhang, Q. Li, X. Dai, C. Dong, P.K. Liaw, Mater. Sci. Eng. A 626, 369 (2015)
[31]	Y. Dong, Y.P. Lu, L. Jiang, T.M. Wang, T.J. Li, Intermetallics 52, 105 (2014)
[32]	Y.P. Lu, Y. Dong, L. Jiang, T.M. Wang, T.J. Li, Y. Zhang, Entropy 17, 2355 (2015)
[33]	H.T. Zheng, R.R. Chen, G. Qin, X.Z. Li, Y.Q. Su, H.S. Ding, J.J. Guo, H.Z. Fu, Intermetallics 113, 106569 (2019)
[34]	K.G. Kreider, Metallic Matrix Composites: Composite Materials (Academic Press, New York, 1974)
[35]	M. Alger, Polymer Science Dictionary (Springer, Dordrecht, 1996)
[36]	B.J. Shaw, Acta Metall. 15, 1169 (1967)
[37]	G.A. Chadwick, Acta Metall. 24, 1137 (1976)
[38]	H.P. Chou, Y.S. Chang, S.K. Chen, J.W. Yeh, Mater. Sci. Eng. B 163, 184 (2009)
[39]	M.S. Lucas, G.B. Wilks, L. Mauger, J.A. Muñoz, O.N. Senkov, E. Michel, J. Horwath, S.L. Semiatin, M.B. Stone, D.L. Abernathy, E. Karapetrova, Appl. Phys. Lett. 100, 251 (2012)
[40]	L.J. Santodonato, Y. Zhang, M. Feygenson, C.M. Parish, M.C. Weber, R.J.K. Gao, J.C. Neuefeind, Z. Tang, P.K. Liaw,, Nat. Com- mun. 6, 59 (2015)

Alloys	Region	Co	Fe	Ni	V	Mo	Nb
Nb0	DR	21.36	44.27	21.07	9.37	3.94	-
Nb0	ID	20.02	39.10	18.86	13.63	8.40	-
Nb2	DR	20.91	42.64	20.34	10.28	4.58	1.26
	ID	21.83	39.36	19.91	10.62	6.07	2.21
	E	16.49	34.56	19.25	12.19	9.89	7.62
Nb4	DR	19.83	43.63	20.49	9.94	3.88	2.24
	ID	20.08	42.31	18.72	11.53	4.66	2.70
	E	17.50	31.13	13.96	7.02	10.50	19.89
Nb6	A	20.41	42.23	19.36	10.61	3.96	3.42
Nb6	E	18.36	35.32	17.15	8.82	5.63	14.71
Nb8	A	18.91	43.00	20.60	10.60	3.36	3.53
Nb8	E	19.33	30.20	14.03	6.77	5.88	23.79
Nb9	E	19.00	35.25	17.38	8.59	5.29	14.49
Nb10	E	19.15	35.79	18.46	9.72	4.49	12.37
Nb10	B	17.97	34.15	12.19	5.04	7.56	23.08
Nb12	E	18.60	37.15	24.86	13.64	2.10	3.65
Nb12	B	18.31	33.72	11.55	5.01	6.62	24.80

Alloys	Region	Co	Fe	Ni	V	Mo	Nb
Nb0	DR	21.36	44.27	21.07	9.37	3.94	-
Nb0	ID	20.02	39.10	18.86	13.63	8.40	-
Nb2	DR	20.91	42.64	20.34	10.28	4.58	1.26
	ID	21.83	39.36	19.91	10.62	6.07	2.21
	E	16.49	34.56	19.25	12.19	9.89	7.62
Nb4	DR	19.83	43.63	20.49	9.94	3.88	2.24
	ID	20.08	42.31	18.72	11.53	4.66	2.70
	E	17.50	31.13	13.96	7.02	10.50	19.89
Nb6	A	20.41	42.23	19.36	10.61	3.96	3.42
Nb6	E	18.36	35.32	17.15	8.82	5.63	14.71
Nb8	A	18.91	43.00	20.60	10.60	3.36	3.53
Nb8	E	19.33	30.20	14.03	6.77	5.88	23.79
Nb9	E	19.00	35.25	17.38	8.59	5.29	14.49
Nb10	E	19.15	35.79	18.46	9.72	4.49	12.37
Nb10	B	17.97	34.15	12.19	5.04	7.56	23.08
Nb12	E	18.60	37.15	24.86	13.64	2.10	3.65
Nb12	B	18.31	33.72	11.55	5.01	6.62	24.80

	Co	Fe	Ni	V	Mo	Nb
Co (1.251 Å)	0	- 1	0	- 14	- 5	- 25
Fe (1.241 Å)	-	0	- 2	- 7	- 2	- 16
Ni (1.246 Å)	-	-	0	- 18	- 7	- 30
V (1.316 Å)	-	-	-	0	0	- 1
Mo (1.363 Å)	-			-	0	- 6
Nb (1.429 Å)	-		-	-	-	0

	Co	Fe	Ni	V	Mo	Nb
Co (1.251 Å)	0	- 1	0	- 14	- 5	- 25
Fe (1.241 Å)	-	0	- 2	- 7	- 2	- 16
Ni (1.246 Å)	-	-	0	- 18	- 7	- 30
V (1.316 Å)	-	-	-	0	0	- 1
Mo (1.363 Å)	-			-	0	- 6
Nb (1.429 Å)	-		-	-	-	0

Alloys	ΔH_mix (kJ/mol)	δ (%)	ΔS_mix (J/(K mol))	VEC	ΔX	$\stackrel{-}{Md}$	T_m (K)	Ω
Nb0	- 5.831	3.00	11.60	8.23	0.103	0.915	1867.1	3.71
Nb2	- 7.079	3.64	12.18	8.17	0.107	0.939	1884.6	3.24
Nb4	- 8.272	4.16	12.53	8.10	0.111	0.963	1902.1	2.88
Nb6	- 9.410	4.59	12.79	8.04	0.115	0.987	1919.6	2.61
Nb8	- 10.491	4.96	12.99	7.98	0.119	1.011	1937.0	2.40
Nb9	- 11.011	5.13	13.07	7.94	0.121	1.023	1945.8	2.31
Nb10	- 11.517	5.29	13.14	7.91	0.123	1.035	1954.5	2.23
Nb12	- 12.487	5.58	13.26	7.85	0.126	1.060	1972.0	2.09

Novel (CoFe₂NiV_0.5Mo_0.2)_100-_xNb_x Eutectic High-Entropy Alloys with Excellent Combination of Mechanical and Corrosion Properties

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Figures/Tables 14

References 40

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Alloys	Yield strength (MPa)	Compressive strength (MPa)	Plastic strain (%)	Fracture strain (%)	Vickers hardness (HV)
Nb0	199.0	-	> 60	> 60	147.6
Nb2	261.7	-	> 60	> 60	216.6
Nb4	476.4	2120.1	35.3	45.3	270.6
Nb6	883.4	2059.7	23.1	32.7	342.7
Nb8	1118.2	2050.8	19.3	28.2	393.5
Nb9	1449.2	2191.7	17.4	26.7	501.8
Nb10	1469.3	2433.2	19.4	27.7	476.1
Nb12	1310.5	1704.2	3.7	10.5	524.9

Sample	E_corr (mV)	i_corr (μA cm^-2)	E_pit (mV)	Average E_pit- E_corr (mV)
Nb0	- 252.36	4.2606	- 43.25	209.11
Nb2	- 318.8	4.0963	20.48	339.28
Nb4	- 322.87	3.1789	79.19	402.06
Nb6	- 310.18	3.4967	132.5	442.68
Nb8	- 287.15	3.2805	199.9	487.05
Nb9	- 337.46	4.6428	195.9	533.36
Nb10	- 294.55	5.0078	261.1	555.65
Nb12	- 351.21	7.1288	247.3	598.51

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