Mechanical and Electrical Properties of the Ternary Ag–Sb–Zn System

doi:10.1007/s40195-013-0016-0

Abstract

Abstract:

This paper presents comparative review of experimental and thermodynamic assessment of ternary Ag–Sb–Zn system. Isothermal section of the Ag–Sb–Zn system at 300 °C has been calculated by CALPHAD method using thermodynamic parameters from literature. Microstructural analysis of a number of alloys was carried out by scanning electron microscopy and optical microscopy, whereas chemical composition of observed phases was analyzed using energy-dispersive X-ray spectroscopy. Hardness of selected alloys from four vertical sections was determined using Brinell hardness test and additionally by micro Vickers hardness test. Electrical conductivity of a number of alloys in the ternary Ag–Sb–Zn system was experimentally determined. Good overall agreement between experimental and calculated values was obtained.

Key words: Ag–Sb–Zn system, Isothermal section, Microstructure, Brinell hardness, Micro Vickers hardness, Electrical conductivity

M. Premović, D. Minić, D. Manasijević, Vladan Ćosović, D. Živković, I. Dervišević, N. Talijan. Mechanical and Electrical Properties of the Ternary Ag–Sb–Zn System[J]. Acta Metallurgica Sinica (English Letters), 2014, 27(1): 47-54.

Figures/Tables 11

References 20

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COST 531 thermodynamic database name	Common name	Struktur-bericht symbol	Pearson symbol
LIQUID	Liquid
RHOMBO_A7	(Sb)	A7	hR2
FCC_A1	(Ag)	A1	cF4
HCP_A3	ζ	A3	hP2
AGSB_ORTHO	ε (LT)	–	oP4
AGSB_ORTHO	ε (HT)	D0	oP8
HCP_ZN	(Zn)	A3 mod	hP2
BCC_A2	β	A2	cl2
AGZN_ZETA	ζ′	B_b	hP9
AGZN_BRASS	γ	D82	cl52
SBZN_BETA	β′	B_e	oP16
SBZN_GAMMA	γ′	–	–
SBZN_DELTA	δ	–	–
SBZN_EPSILON	ε′	–	–
SBZN_ZETA	ζ′′	–	ol*
SBZN_ETA	η	–	oP30

COST 531 thermodynamic database name	Common name	Struktur-bericht symbol	Pearson symbol
LIQUID	Liquid
RHOMBO_A7	(Sb)	A7	hR2
FCC_A1	(Ag)	A1	cF4
HCP_A3	ζ	A3	hP2
AGSB_ORTHO	ε (LT)	–	oP4
AGSB_ORTHO	ε (HT)	D0	oP8
HCP_ZN	(Zn)	A3 mod	hP2
BCC_A2	β	A2	cl2
AGZN_ZETA	ζ′	B_b	hP9
AGZN_BRASS	γ	D82	cl52
SBZN_BETA	β′	B_e	oP16
SBZN_GAMMA	γ′	–	–
SBZN_DELTA	δ	–	–
SBZN_EPSILON	ε′	–	–
SBZN_ZETA	ζ′′	–	ol*
SBZN_ETA	η	–	oP30

Sample	Phase	Composition
		Ag		Sb		Zn
		exp.	calc.	exp.	calc.	exp.	calc.
I (Ag₆₀Sb₂₀Zn₂₀)	(Ag)	80.72	81.64	2.97	1.801	16.31	16.56
	β′	1.325	–	50.54	50	48.13	50
	ε	74.4	77.07	25.37	22.93	0.23	–
II (Ag₆₀Sb₂₈Zn₁₂)	(Sb)	1.92	–	96.95	100	1.13	–
	β′	1.723	–	51.72	50	46.65	50
	ε	75.24	76.19	24.33	23.81	0.43	–
III (Ag₁₈Sb₂₈Zn₅₄)	β′	1.36	–	63.24	65.06	35.4	34.94
III (Ag₁₈Sb₂₈Zn₅₄)	γ	51.82	50.66	2.48	–	45.7	45.34
IV (Ag₅₁Sb_8.5Zn_40.5)	(Ag)	72.46	73.22	1.04	0.12	26.5	26.66
IV (Ag₅₁Sb_8.5Zn_40.5)	β′	0.14	–	64.24	65.06	35.62	34.94

Sample	Phase	Composition
		Ag		Sb		Zn
		exp.	calc.	exp.	calc.	exp.	calc.
I (Ag₆₀Sb₂₀Zn₂₀)	(Ag)	80.72	81.64	2.97	1.801	16.31	16.56
	β′	1.325	–	50.54	50	48.13	50
	ε	74.4	77.07	25.37	22.93	0.23	–
II (Ag₆₀Sb₂₈Zn₁₂)	(Sb)	1.92	–	96.95	100	1.13	–
	β′	1.723	–	51.72	50	46.65	50
	ε	75.24	76.19	24.33	23.81	0.43	–
III (Ag₁₈Sb₂₈Zn₅₄)	β′	1.36	–	63.24	65.06	35.4	34.94
III (Ag₁₈Sb₂₈Zn₅₄)	γ	51.82	50.66	2.48	–	45.7	45.34
IV (Ag₅₁Sb_8.5Zn_40.5)	(Ag)	72.46	73.22	1.04	0.12	26.5	26.66
IV (Ag₅₁Sb_8.5Zn_40.5)	β′	0.14	–	64.24	65.06	35.62	34.94

Sample	Phase	Vickers microhardness of different tests (HV)					Mean value (HV)
Sample	Phase	No.1	No.2	No.3	No.4	No.5	Mean value (HV)
6	White phase	188.27	194.98	199.53	192.45	–	193.8
6	Mixed phase	232.36	243.23	244.56	259.48	246.43	241.64
9	Light phase	119.26	121.43	127.67	–	–	122.78
	Gray phase	147.26	148.42	141.29	–	–	145.65
	Dark phase	165.33	166.24	156.39	–	–	162.65