Effect of grain size and texture on fracute toughness in magnesim and magnesium-aluminum-zinc (AZ31) alloy

Magnesium Technology

Volumn 2006, Issue , 2006, Pages 395-399

  Somekawa, Hidetoshi ^a   Mukai, Toshiji ^a  

^a NATIONAL INSTITUTE FOR MATERIALS SCIENCE   (Japan)

Author keywords

Extrusion; Grain refinement; Magnesium; Texture; Toughness

Indexed keywords

DUCTILITY; EXTRUSION; FRACTURE TOUGHNESS; TENSILE STRENGTH; TEXTURES; TOUGHNESS;

EXTRUSION DIRECTION; GRAIN REFINEMENT; HOT EXTRUSION; STRONG BASAL TEXTURE;

MAGNESIUM ALLOYS;

EID: 33646152954     PISSN: 15454150     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (34)

1. ASM Specialty Handbook, Magnesium and magnesium alloys, (Materials Park, OH, ASM International, 1999).
2. IC fracture parameters in a sand AZ91 magnesium alloy", Eng. Fail. Anal. 2004;11:127.
3. Lee S, Lee SH, Kim DH, "Effect of Y, Sr, and Nd additions on the microstructure mechanism of squeeze-cast AZ91-X magnesium alloys", Metal. Mater. Tran. 1998;29A:1221.
4. Purazrang K, Kainer KU, Mordike BL, "Fracture toughness behavior of a magnesium alloy metal-matrix composite produced by the infiltration technique", Composite 1991;22:456.
5. Purazrang K, Abachi P, Kainer KU, "Investigation of the mechanism behavior of magnesium composites", Composite 1994-25:296.
6. Sasaki T, Somekawa H, Takara A, Nishikawa Y, Higashi K, "Plane-strain fracture toughness on thin AZ31 wrought magnesium alloy sheet", Mater. Trans. 2003;44:986.
7. Somekawa H, Mukai T, "Effect of texture on fracture toughness in extruded AZ31 magnesium alloy", Scripta Mater. 2005;53:541.
8. Somekawa H, Mukai T, "Effect of grain refinement on fracture toughness in extruded pure magnesium", Scripta Mrter. 2005;53:1059.
9. Somekawa H, Mukai T, "Fracture toughness in Mg-Al-Zn alloy processed by equal-channel-angular extrusion", Scripta Mater. (in press).
10. Somekawa H, Mukai T, "Fracture toughness in ultra fine-grained magnesium alloy", Mater. Sci. Forum. 2006;503-504:155.
11. Somekawa H, Mukai T, "Fracture toughness in a rolled AZ31 magnesium alloy", J. Alloy. Comp. (in press).
12. ASM Specialty Handbook, Aluminum and aluminum alloys, (Materials Park, OH, ASM International, 1993).
13. Mukai T, Watanabe H, Higashi K, "Application of superplasticity in commercial magnesium alloy for fabrication of structural components", Mater. Sci. Tech. 2000;16:1314.
14. Somekawa H, Watababe H, Mukai T, Higasi K, "Low temperature diffusion bonding in a superplastic AZ31 magnesium alloy", Scripta Mater. 2003;48:1249.
15. Watanabe H, Mukai T, Ishikawa K, Higashi K, "Grain refinement and high-strain-rate superplasticity in an ingot metallurgy AZ91 magnesium alloy", Mater. Trans. 2002;43:78.
16. Reed Hill RE, Robertson WD, "The crystallographic characteristic of fracture in magnesium single crystals", Acta Metall. 1957;5:728.
17. Mukai T, Yamanoi M, Watanabe H, Higashi K, "Ductility enhancement in AZ31 magnesium alloy by controlling its grain structure", Scripta Mater. 2001;45:89.
18. Watanabe H, Takara A, Somekawa H, Mukai T, Higashi K, "Effect of texture on tensile properties at elevated temperatures in an AZ31 magnesium alloy", Scripta Mater. 2005;52:449.
19. Agnew SR, Horton JA, Lillo TM, Brown DB, "Enhanced ductility in strongly textured magnesium produced by equal channel angular processing", Scipta Mater. 2004;50:377.
20. Kim WJ, An CW, Kim YS, Hong SI, "Mechanical properties and microstructures of an AZ61 Mg alloy produced by equal channel angular pressing" Scripta Mater. 2002;47:39.
21. Armstrong R, Codd I, Douthwaite RM, Fetch NJ, "The plastic deformation of polycrystalline aggregates", Philos. Mag. 1962;7:45.
22. Ono N, Nowak R, Miura S, "Effect of deformation temperature on Hall-Petch relationship registered for polycrystalline magnesium", Mater. Lett. 2003;58:39.
23. Watanabe H, Somekawa H, Higashi K, "Fine-grain processing by equal channel angular extrusion of rapidly quenched bulk Mg-Y-Zn alloy", J. Mater. Res. 2005;20:93.
24. Mukai T, Yamanoi M, Watanabe H, Higashi K, "Effect of grain refinement of tensile ductility in ZK60 magnesiun alloy dynamic loading", Mater. Trans. 2001;42:1177.
25. Koike J, Ohyama R, Kobayashi T, Suzuki M, Maruyama K, "Grain-boundary sliding in AZ31 magnesium alloys at room temperature to 523 K", Mater. Trans. 2003;44:445.
26. Hwang S, Nishimura C, McCormick PG, "Deformation mechanism of nanocrystalline magnesium in compression", Scripta Mater. 2001;44:1507.
27. ASTM E399, Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials, American Society for Testing and Materials (West Conshohocken, PA).
28. Ohira T, Kishi T, "Effect of iron content on fracture toughness and cracking processes in high strength Al-Zn-Mg-Cu alloy", Mater. Sci. Eng. 1986;A78:9.
29. Knott JF, "Micromechanisms of fibrous crack extension in engineering alloys", Met. Sci. 1980;14:327.
30. Spizing WA: Electron Microfractography, (ASTM, STP 453 1969), pp.90-109.
31. Higashi K, Hirai Y, Ohnishi T, "Relationship between fracture toughness and impurity elements in Al-Zn-Mg-Cu alloys" J. Jpn. Inst. Light Metals 1985;35:520.
32. Griffith AA, "The phenomena of rupture and flow in solids", Phil. Trans. Roy. Soc. 1920;A221:163.
33. Baskes M, Johnson RA, "Modified embedded atom potentials for HCP metals", Mode. Simul. Mater. Sci. Eng. 1994;2:147.
34. Schwalbe KH, "On the influence of microstructure on crack propagation mechanisms and fracture toughness of metallic materials", Eng. Frac. Mech. 1977;9:795.