Current Research or Professional Activities

Current Research Projects:  Intermetallic Materials, Deformation and Fracture of Materials, Materials Testing

Publications:

T.R. Bieler, B.C. Ng, A.U. Telang, and M.A. Crimp, "Application of OIM to Study Heterogeneous Deformation in the Vicinity of Grain Boundaries," In A Collection of OIM Applications, ed. S. I. Wright, EDAX Inc., 2005, pp. 73-78.

B.C. Ng, T.R. Bieler and M.A. Crimp, D.E. Mason, "Prediction of crack paths based upon detailed microstructure characterization in a near-g-TiAl Alloy," Materials Damage Prognosis Edited by J.M .Larsen, J.R. Calcaterra, L. Christodoulou, M.L. Dent, W.J. Hardman, J.W. Jones, S.M. Russ, TMS (The Minerals, Metals & Materials Society), pp.307-314, 2005.

T.R. Bieler, A. Fallahi, B.C. Ng, D. Kumar, M.A, Crimp, B.A. Simkin, A. Zamiri, F. Pourboghrat, D.E. Mason, "Fracture Initiation/Propagation Parameters for Duplex TiAl Grain Boundaries Based on Twinning, Slip, Crystal Orientation, and Boundary Misorientation." Intermetallics 13(9), pp. 979-984 (2005).

S. Robin, B.C. Ng and P. Polidoro, "Failure in Internally Pressurized Bent Tubes," Metallurgical and Materials Transactions A, Vol. 35A, March 2004, pp. 1151-1158.

B.C. Ng, T. R. Bieler, M. A. Crimp, D.E. Mason, "Twin Activity At The Crack Tip In Near-Gamma TiAl Using Electron Channeling Contrast Imaging." Gamma Titanium Aluminides 2003, eds Y.W. Kim et al, TMS, Warrendale, PA. 2004, pp. 503-508.

B.C. Ng, B.A. Simkin, M.A. Crimp, T.R. Bieler," The Role of Mechanical Twinning on Microcrack Nucleation and Crack Propagation in a Near-Gamma TiAl Alloy, Intermetallics, 12 (2004) 1317-1323.

B.A. Simkin, B.C. Ng, T.R. Bieler, M.A. Crimp, and D.E. Mason, "Orientation determination and defect analysis in the near-cubic intermetallic g-TiAl using SACP, ECCI, and EBSD," Intermetallics 11 (2003) pp.215-223.

M.A. Crimp, B.C. Ng, B.A. Simkin, and T.R. Bieler, "Microcrack Nucleation and Crack Propagation in g TiAl", Defect Properties and Related Phenomena in Intermetallic Alloys, E.P. George, M.J. Mills, H. Inui, and G. Eggeler eds, MRS Proceedings, Vol. 753, pp. 143-148 (2003).

M.A. Crimp, B.A. Simkin, B.C. Ng, D.E. Mason, and T.R. Bieler, "Microscale Characterization of Deformation Defects in Bulk Intermetallic Alloys using Electron Channeling Contrast Imaging," Proc. THERMAC 2003, T. Chandra, J.M. Torralba, and T. Sakai eds., TransTech Pub., Zurich, pp. 1885-1890 (2003).

B.C. Ng, T. R. Bieler, M. A. Crimp, "The Effect of Crystal Orientation on Crack Nucleation and Arrest in a Near-Gamma TiAl Alloy," Mechanisms and Mechanics of Fracture: The John Knott Symposium, eds, W.O. Soboyejo, J.J. Lewandowski, and R.O. Ritchie, TMS, Warrendale, PA, pp. 303-308 2002.