Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-28T16:24:45.338Z Has data issue: false hasContentIssue false
  • English
  • Français

Hot pressing and characterizations of mechanically alloyed Zr52Al6Ni8Cu14W20 glassy powders.

Published online by Cambridge University Press:  01 April 2006

M. Sherif El-Eskandarany  and
A. Inoue
M. Sherif El-Eskandarany*
Affiliation:
Mining, Metallurgical and Petroleum Engineering Department, Faculty of Engineering, Al-Azhar University, Nasr City 11371, Cairo, Egypt
A. Inoue
Affiliation:
Institute for Materials Research, Tohoku University, Miyagi 980-8577, Japan
*
a) Address all correspondence to this author. Present Address: Technology Development & Scientific Services Sector, Academy of Scientific Research & Technology, Ministry of Scientific Research, 101 Kasr Al-Aini St., Cairo 11516, Egypt. e-mail: msherif@eleskandarany.com
Get access

Abstract

Low-energy ball milling technique was successfully used to synthesis new glassy Zr52Al6Ni8Cu14W20 multicomponent alloy powders using mechanical alloying method. During the intermediate stage of milling the atoms of Zr, Al, Ni, and Cu migrated and diffused into the W lattice to form a body-centered cubic solid solution phase. As the milling time increases, the obtained metastable powders are subsequently subjected to continuous defects and lattice imperfections that lead to a gradual change in the free energy so that solid solution phase transformed to another metastable phase (glassy). The glassy powders that were obtained after 720 ks milling are fully amorphous and have spherical-like morphology with an average particle size of 0.60 μm in diameter. The synthetic glassy Zr52Al6Ni8Cu14W20 alloy powder, which exhibits a glass transition temperature of 811 K, crystallizes at a high temperature (884 K) through a single sharp exothermic peak with an enthalpy change of crystallization of −5.48 kJ/mol. Whereas the supercooled liquid region before crystallization of the obtained glassy powders is 73 K, the reduced glass transition temperature (ratio between Tg and liquidus temperatures) was found to be 0.46. The fabricated glassy powders were consequently hot-pressed into bulk samples in an argon gas atmosphere at several temperatures with a pressure of 936 MPa. The samples that were consolidated within the temperature of the supercooled liquid region are fully dense, with relative density above ∼99.82%, and maintain their original homogeneous glassy structure. They have high Vickers microhardness values in the range between 8.46 and 8.62 GPa. They also show very high fracture strength (2.13 GPa) with an extraordinary high Young's modulus of 138 GPa. Neither yielding stress, nor plastic strain could be detected for this glassy alloy, the elastic strain of which is 1.47%.

Keywords

AmorphousCalorimetryMetal
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 4 , April 2006 , pp. 976 - 987
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Inoue, A.: Bulk Amorphous Alloys: Practical Characteristics and Applications, 1st ed., edited by Magini, M. and Wöhlbier, F.H. (Trans Tech Publications, Switzerland, 1999), p. 140.Google Scholar
2.El-Eskandarany, M. Sherif: Mechanical Alloying for Fabrication of Advanced Engineering Materials, 1st ed. (William Andrew Publishing, New York, 2001), p. 5.Google Scholar
3.Wang, W.H., Dong, C., Shek, C.H.: Bulk metallic glasses. Mater. Sci. Eng. R 44, 45 (2004).CrossRefGoogle Scholar
4.Koshiba, H., Inoue, A.: Preparation and magnetic properties of Co-based bulk glassy alloys. Mater. Trans. JIM 42, 2572 (2001).CrossRefGoogle Scholar
5.Shen, B., Kimura, H., Inoue, A., Mizushima, T.: Bulk glassy Fe–Ga–P–C–B alloys with high saturation magnetization and good soft magnetic properties synthesized by fluxing treatment and copper mold casting. Mater. Trans. JIM 42, 660 (2001).CrossRefGoogle Scholar
6.Shen, B., Kimura, H., Inoue, A., Omori, M., Okubo, A.: Preparation of Fe65Co10Ga5P12C4B4 bulk glassy alloy with good soft magnetic properties by spark-plasma sintering of glassy powder. Mater. Trans. JIM 43, 1961 (2002).CrossRefGoogle Scholar
7.Ishihara, S., Zhang, W., Inoue, A.: Hot pressing of Fe–Co–Nd– Dy–B glassy powders in supercooled liquid state and hard magnetic properties of the consolidated alloys. Scripta Metall. 47, 231 (2002).CrossRefGoogle Scholar
8.Duan, G., Xu, D., Johnson, W.L.: High copper bulk glass formation in bimetallic Cu–Hf system.. Metall. Trans. 36A, 455 (2005).CrossRefGoogle Scholar
9.Gu, X., Shiflet, G.J.: Mg–Ca–Zn bulk metallic glasses with high strength and significant ductility. J. Mater. Res. 20, 1935 (2005).CrossRefGoogle Scholar
10.Xi, X.K., Li, S., Wang, R.J., Zhao, D.Q., Pan, M.X., Wang, W.H.: Bulk scandium-based metallic glasses. J. Mater. Res. 20, 2243 (2005).CrossRefGoogle Scholar
11.Ma, H., Zheng, Q., Xu, J., Li, Y., Ma, E.: Doubling the critical size for bulk metallic glass formation in the Mg–Cu–Y ternary system. J. Mater. Res. 20, 2252 (2005).CrossRefGoogle Scholar
12.Zhang, J., Zhao, Y.: Formation of zirconium metallic glass. Nature 430, 332 (2004).CrossRefGoogle ScholarPubMed
13.El-Eskandarany, M. Sherif, Zhang, W., Inoue, A.: Mechanically induced solid-state reaction for synthesizing of glassy Co75Ti25 soft magnet alloy powders with wide supercooled liquid region. J. Mater. Res. 17, 2447 (2002).CrossRefGoogle Scholar
14.El-Eskandarany, M. Sherif, Ishihara, S., Inoue, A.: Mechanism of solid-state reaction for fabrication of new glassy V45Zr22Ni22Cu11 alloy powders and subsequent consolidation. J. Mater. Res. 18, 2435 (2003).CrossRefGoogle Scholar
15.El-Eskandarany, M. Sherif, Ishihara, S., Zhang, W., Inoue, A.: Fabrication and characterizations of new glassy Co71Ti24B5 alloy powders and subsequent hot pressing into a fully dense bulk glass. Metall. Trans. 36A, 141 (2005).CrossRefGoogle Scholar
16.Shen, B., Inoue, A.: Fabrication of large-size-Fe-based glassy cores with good soft magnetic properties by spark plasma sintering. J. Mater. Res. 18, 2115 (2003).CrossRefGoogle Scholar
17.Kawamura, Y., Shibata, T., Inoue, A., Masumoto, T.: Superplastic deformation of Zr65Al10Ni10Cu15 metallic glass. Scripta Metall. 37, 431 (1997).CrossRefGoogle Scholar
18.Itoi, T., Takamizawa, T., Kawamura, Y., Inoue, A.: Fabrication of Co40Fe22Nb8B30 bulk metallic glasses by consolidation of gas-atomized powders and their soft-magnetic properties. Scripta Metall. 45, 1131 (2001).CrossRefGoogle Scholar
19.Li, F., Zhang, T., Guan, S., Ningfu, : A novel dual-amorphous-phased bulk metallic glass with soft magnetic properties. Mater. Lett. 59, 1453 (2005).CrossRefGoogle Scholar
20.Inoue, A., Shen, B.: Soft magnetic properties of nanocrystalline Fe–Co–B–Si–Nb–Cu alloys in ribbon and bulk forms. J. Mater. Res. 18, 2799 (2003).CrossRefGoogle Scholar
21.Bednarčik, J., Kollár, P., Roth, S., Eckert, J.: Co-based soft magnetic bulk amorphous ferromagnets prepared by powder consolidation. Phys. Status Solidi 199, 299 (2003).CrossRefGoogle Scholar
22.Ponnambalam, V., Poon, S.J., Shiflet, J.G.: Fe-based bulk metallic glasses with diameter thickness larger than one centimeter. J. Mater. Res. 19, 1320 (2004).CrossRefGoogle Scholar
23.Kollár, P., Bednarčik, J., Roth, S., Grahl, H., Eckert, J.: Structure and magnetic properties of hot pressed Co-based powder. J. Magn. Magn. Mater. 278, 373 (2004).CrossRefGoogle Scholar
24.El-Eskandarany, M. Sherif, Saida, J., Inoue, A.: Structural and calorimetric evolutions of mechanically-induced solid-state devitrificated Zr70Ni25Al15 glassy alloy powder. Acta Mater. 51, 148 (2003).CrossRefGoogle Scholar
25.El-Eskandarany, M. Sherif, Saida, J., Inoue, A.: Mechanically induced devitrifications of ball-milled Zr70Pd20Ni10 glassy alloy powders. J. Mater. Res. 18, 250 (2003).CrossRefGoogle Scholar
26.El-Eskandarany, M. Sherif, Saida, J., Inoue, A.: Room-temperature mechanically induced solid state devitrifications of glassy Zr65Al 7.5Ni10Cu 12.5Pd 5 alloy powders. Acta Mater. 51, 4519 (2003).CrossRefGoogle Scholar
27.Sunol, J.J., Gonzalez, A., Clavaguera-Mora, M.T., Clavaguera, N.: Mechanically induced thermal changes in amorphous metallic melt-spun alloys. Mater. Lett. 57, 4222 (2003).CrossRefGoogle Scholar
28.Zhang, L.C., Xu, J.: Formation of glassy Ti50Cu20Ni24Si4B2 alloy by high-energy ball milling. Mater. Lett. 56, 615 (2002).CrossRefGoogle Scholar
29.Liu, Y.J., Chang, I.T.H.: The correlation of microstructural development and thermal stability of mechanically alloyed multicomponent Fe–Co–Ni–Zr–B alloys. Acta Mater. 50, 2747 (2002).CrossRefGoogle Scholar
30.Lin, C-K., Wang, C-C., Jeng, R-R., Lin, Y-L., Yeh, C-H., Chu, J.P., Lee, P-Y.: Prepartation and thermal stability of mechanically alloyed Ni–Zr–Ti–Y amorphous powders. Intermetallics 12, 1011 (2004).CrossRefGoogle Scholar
31.Scudino, S., Eckert, J., Mickel, C., Schultz, L.: On the amorphous-to-quasicrystalline phase transformation in ball-milled and melt-spun Zr58.5Ti8.2Cu14.2Ni11.4Al7.7 glassy alloys. J. Non-Cryst. Solids 351, 856 (2005).CrossRefGoogle Scholar
32.El-Eskandarany, M. Sherif, Omori, M., Inoue, A.: Solid-state synthesizing of new glassy Co65Ti20W15 alloy powders and subsequent densification into a fully dense bulk glass. J. Mater. Res. 20, 2845 (2005).CrossRefGoogle Scholar
33.Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000).CrossRefGoogle Scholar
34.Boer, F.R., Boom, R., Mattens, W.C., Miedema, A.R., Nissen, A.K. Cohesion in metals, in Transition Metal Alloys 1st ed. Vol. 1 (North-Holland, Amsterdam, The Netherlands, 1988).Google Scholar
35.Kittel, C.: Introduction to Solid State Physics 6th ed. (John Wiley & Sons Inc., New York, 1986), p. 76.Google Scholar
36.Schwarz, R.B., Johnson, W.L.: Formation of an amorphous alloy by solid-state reaction of the pure polycrystalline metals. Phys. Rev. Lett. 51, 415 (1983).CrossRefGoogle Scholar
37.Sagel, A., Wunderlich, R.K., Fecht, H.J.: Investigation of amorphization in an intermetallic powder mixture of bulk glass forming composition. Mater. Sci. Forum 269–272, 81 (1998).CrossRefGoogle Scholar
38.Sagel, A., Sieber, H., Fecht, H-J., Perepezko, J.H.: Synthesis of an amorphous Zr–Al–Ni–Cu alloy with large supercooled liquid region by cold-rolling of elemental foils. Acta Mater. 46, 4233 (1998).CrossRefGoogle Scholar
39.Sagel, A., Wunderlich, R.K., Perepezko, J.H., Fecht, H-J.: Glass formation in a multicomponent Zr-based alloy by mechanical attrition and liquid undercooling. Appl. Phys. Lett. 70, 580 (1997).CrossRefGoogle Scholar
40.Schwarz, R.B., Petrich, R.R., Saw, C.K.: The synthesis of amorphous Ni–Ti alloy powders by mechanical alloying. J. Non-Cryst. Solids 76, 281 (1985).CrossRefGoogle Scholar