Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-28T07:10:08.732Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of volume fraction and geometry of pores on mechanical properties of porous bulk glassy Pd42.5Cu30Ni7.5P20 alloys

Published online by Cambridge University Press:  01 April 2006

Takeshi Wada ,
Makoto Kinaka  and
Akihisa Inoue
Takeshi Wada*
Affiliation:
Department of Materials Science, Graduate School of Engineering, Tohoku University, Aoba-ku, Sendai 980-8577, Japan
Makoto Kinaka
Affiliation:
Department of Materials Science, Graduate School of Engineering, Tohoku University, Aoba-ku, Sendai 980-8577, Japan
Akihisa Inoue
Affiliation:
Institute for Materials Research, Tohoku University, Aoba-ku, Sendai 980-8577, Japan
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

Porous Pd42.5Cu30Ni7.5P20 bulk glassy alloy rods with porosities up to 71% were successfully prepared by water quenching in a 15 MPa hydrogen atmosphere, followed by heat treatment in a supercooled liquid state. Pores with sizes up to 80 μm were homogeneously distributed over the whole cross-sectional area. Under compressive deformation, the porous alloys with porosities exceeding 41% did not show macroscopic fracture in a wide compressive strain range up to 0.6. Mechanical tests with porous alloy rods whose pores are anisotropically oriented indicate that the plasticity of the porous alloy is strongly affected by stress concentration factor.

Keywords

AmorphousFoamStrength
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 4 , April 2006 , pp. 1041 - 1047
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.Ashby, M.F., Evans, A.G., Fleck, N.A., Gibson, L.J., Hutchinson, J.W., Wadley, H.N.G.: Metal Foams: A Design Guide (Butterworth– Heinemann, Boston, 2000).Google Scholar
2.Gibson, L.J., Ashby, M.F.: Cellular Solids: Structure and Properties, 2nd ed. (Cambridge University Press, Cambridge, UK, 1997).CrossRefGoogle Scholar
3.Banhart, J.: Manufacture, characterisation and application of cellular metals and metal foams. Prog. Mater. Sci. 46, 559 (2001).CrossRefGoogle Scholar
4.Inoue, A., Kato, A., Zhang, T., Kim, S.G., Masumoto, T.: Mg-Cu-Y amorphous alloys with high mechanical strengths produced by a metallic mold casting method. Mater. Trans. JIM. 32, 609 (1991).CrossRefGoogle Scholar
5.Inoue, A., Zhang, T., Masumoto, T.: Production of amorphous cylinder and sheet of La55Al25Ni20 alloy by a metallic mold casting method. Mater. Trans. JIM. 31, 425 (1990).CrossRefGoogle Scholar
6.Inoue, A., Zhang, T., Masumoto, T.: Preparation of bulky amorphous Zr-Al-Co-Ni-Cu alloys by copper mold casting and their thermal and mechanical properties. Mater. Trans. JIM. 36, 391 (1995).CrossRefGoogle Scholar
7.Pecker, A., Johnson, W.L.: A highly processable metallic glass: Zr41.2Ti13.8Cu12.5Ni10.0Be22.5. Appl. Phys. Lett. 63, 2342 (1993).CrossRefGoogle Scholar
8.Inoue, A., Zhang, W., Zhang, T., Kurosaka, K.: Thermal and mechanical properties of Cu-based Cu-Zr-Ti bulk glassy alloys. Mater. Trans. 42, 1149 (2001).CrossRefGoogle Scholar
9.Inoue, A., Nishiyama, N., Matsuda, T.: Preparation of bulk glassy Pd40Ni10Cu30P20 alloy of 40 mm in diameter by water quenching. Mater. Trans. JIM. 37, 181 (1996).CrossRefGoogle Scholar
10.Inoue, A., Murakami, A., Zhang, T., Takeuchi, A.: Thermal stability and magnetic properties of bulk amorphous Fe-Al-Ga-P-C-B-Si alloys. Mater. Trans. JIM. 38, 189 (1997).CrossRefGoogle Scholar
11.Inoue, A., Shen, B., Koshiba, H., Kato, H., Yavari, A.R.: Cobalt-based bulk glassy alloy with ultrahigh strength and soft magnetic properties. Nat. Mater. 2, 661 (2003).CrossRefGoogle ScholarPubMed
12.Inoue, A.: Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta Mater. 48, 279 (2000).CrossRefGoogle Scholar
13.Johnson, W.L.: Bulk glass-forming metallic alloys: Science and technology. MRS Bull. 24, 42 (1999).CrossRefGoogle Scholar
14.Schroers, J., Veazey, C., Johnson, W.L.: Amorphous metallic foam. Appl. Phys. Lett. 82, 370 (2003).CrossRefGoogle Scholar
15.Wada, T., Inoue, A.: Fabrication, thermal stability and mechanical properties of porous bulk glassy Pd-Cu-Ni-P alloys. Mater. Trans. 44, 2228 (2003).CrossRefGoogle Scholar
16.Wada, T., Inoue, A.: Formation of porous Pd-based bulk glassy alloys by a high hydrogen pressure melting-water quenching method and their mechanical properties. Mater. Trans. 45, 2761 (2004).CrossRefGoogle Scholar
17.Wada, T., Inoue, A., Greer, A.L.: Enhancement of room-temperature plasticity in a bulk metallic glass by finely dispersed porosity. Appl. Phys. Lett. 86, 251907 (2005).CrossRefGoogle Scholar
18.Brothers, A.H., Dunand, D.C.: Syntactic bulk metallic glass foam. Appl. Phys. Lett. 84, 1108 (2004).CrossRefGoogle Scholar
19.Brothers, A.H., Scheunemann, R., DeFouw, J.D., Dunand, D.C.: Processing and structure of open-celled amorphous metal foams. Scripta Mater. 52, 335 (2005).CrossRefGoogle Scholar
20.Brothers, A.H., Dunand, D.C.: Ductile bulk metallic glass foams. Adv. Mater. 17, 484 (2005).CrossRefGoogle Scholar
21.Inoue, A., Amiya, K., Katsuya, A., Masumoto, T.: Mechanical properties and thermal stability of Ti- and Al-based amorphous wires prepared by a melt extraction method. Mater. Trans. JIM 36, 858 (1995).CrossRefGoogle Scholar
22.Conner, R.D., Johnson, W.L., Paton, N.E., Nix, W.D.: Shear bands and cracking of metallic glass plates in bending. J. Appl. Phys. 94, 904 (2003).CrossRefGoogle Scholar
23.Goodier, J.N.: Concentration of stress around spherical and cylindrical inclusion and flaws. J. Appl. Mech. Trans. ASME 1, 39 (1933).CrossRefGoogle Scholar
24.Edwards, R.H.: Stress concentrations around spheroidal inclusion and cavities. J. Appl. Mech. Trans. ASME 19, 18 (1951).Google Scholar