Tensile microcrack initiation at γ-γ boundaries in TiAl

Proceedings of the TMS Fall Meeting

Volumn , Issue , 2002, Pages 309-314

  Simkin, B A ^a   Bieler, T R ^a   Crimp, M A ^a  

^a Michigan State University   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CRACK INITIATION; CRYSTAL ORIENTATION; GRAIN BOUNDARIES; MICROCRACKS; SCANNING ELECTRON MICROSCOPY; STRESS CONCENTRATION; TRANSMISSION ELECTRON MICROSCOPY;

DECOHESION; DEFORMATION DEFECTS; ELECTRON CHANNELING CONTRAST IMAGING; GEOMETRIC COMPATIBILITY FACTOR; GRAIN ORIENTATIONS; MICROCRACK NUCLEATION; SELECTED AREA CHANNELING PATTERNS;

TITANIUM ALLOYS;

EID: 0036919180     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (14)

1. N. A. Walker and N. E. Glover, "Applications of Intermetallics in the Gas Turbine", Structural Intermetallics 2001, ed. K. J. Hemker, et al. (Warrendale, PA: The Minerals, Metals & Mechanics Society, 2001), 19-24.
2. W. Smarsly, H. Baur, G. Glitz, H. Clemens, T. Kahn, M. Thomas, "Titanium Aluminides for Automotive and Gas Turbine Applications", Structural Intermetallics 2001, ed. K. J. Hemker, et al. (Warrendale, PA: The Minerals, Metals & Mechanics Society, 2001), 25-34.
3. B. A. Simkin, B. C. Ng, T. R. Bieler, M. A. Crimp, D. E. Mason, "Orientation Determination and Defect Analysis in the Near-Cubic Intermetallic □-TiAl Using SACP" (submitted to Intermetallics).
4. J. Luster and M. A. Morris, "Compatibility of Deformation in Two-Phase Ti-Al Alloys: Dependence on Microstructure and Orientation Relationships", Metallurgical and Materials Transactions A, 26A (1995), 1745-1756.
5. B. A. Simkin, M. A. Crimp, T. R. Bieler, D. E. Mason, "The Effect of Crystal Orientation on Deformation Transfer at γ-γ Boundaries in a Near-γ TiAl Based Alloy", Structural Intermetallics 2001, ed. K. J. Hemker, et al. (Warrendale, PA: The Minerals, Metals & Mechanics Society, 2001), 391-400.
6. T. M. Pollock, D. R. Mumm, K. Muraleedharan, P. L. Martin, "In-Situ Observations of Crack Initiation and Growth at Notches in Cast Ti-48Al-2Cr-2Nb", Scr. Mater., 35 (1996), 1311-1316.
7. N.Biery, M. De Graef, T. M. Pollock, "Study of Localized Strain at Notches in Gamma-TiAl Alloys Using Displacement Mapping and Microstructural Characterization", Gamma Titanium Aluminides 1999, ed. Y. W. Kim, D. M. Dimiduk, M. H. Loretto (Warrendale, PA: The Minerals, Metals & Mechanics Society, 2001), 557-564.
8. L. L. Rishel, N. E. Biery, R. Raban, V. Z. Gandelsman, T. M. Pollock, A. W. Cramb, "Cast Structure and Property Variability in Gamma Titanium Aluminides", Intermetallics, 6 (1998), 629-636.
9. B. A. Simkin and M. A. Crimp, "An Experimentally Convenient Configuration for Electron Channeling Contrast Imaging", Ultramicroscopy, 77 (1999), 65-75.
10. J. Zhang, J. D. Shi, D. X. Zou, "A Fractographic Study on Tensile Fracture Surface of Duplex Microstructure TiAl Alloy", Scripta Materiala, 34 (12) (1996), 1815-1818.
11. M. Yamaguchi and Y. Umakoshi, "The Deformation Behavior of Intermetallic Superlattice Compounds", Progress in Materials Science, 34 (1990), 1-148.
12. J. D. Livingston and B. Chalmers, "Multiple Slip in Bicrystal Deformation", Acta Metallurgica, 5 (1957), 322-327.
13. Z. Shen, R. H. Wagoner and W. A. T. Clark, "Dislocation and Grain Boundary Interactions in Metals", Acta Metallurgica, 36 (12) (1988), 3231-3242.
14. W. A. T. Clark, R. H. Wagoner, Z. Y. Shen, T. C. Lee, I. M. Robertson, H. K. Birnbaum, "On the Criteria for Slip Transmission Across Interfaces in Polycrystals", Scripta Metallurgica et Materialia, 26 (1992), 203-206.