John Evans Professor Emeritus

BEng, Metallurgy, 1954

MS, metallurgy, 1956 Osaka University

Ph.D., materials science and engineering, 1959 Northwestern University

Contact Info

 

Amorphization; composite materials; surface coatings

     We have developed a technique to determine the microstructure of various galvanneal coatings by cross-sectional TEM and AEM. We are developing a numerical technique to predict the resulting microstructures with varying galvannealing parameters and steel chemistry. The mechanical behavior of the coatings during automated stamping operation is also being studied (by in situ deformation in SEM, nanoindentation, and shear tests) and is being correlated with the microstructures.
     Nondestructive evaluation (NDE) techniques and microscopic investigation are used to develop an NDE procedure that assesses integrity and the interface in P/M metal matrix composites. The crack sizes, numbers, and distribution are determined at various stages of fatigue by a scanning electron microscope. The same technique is also employed to examine nickel superalloys.
     We study crystalline-to-amorphous transition by means of irradiation-induced morphization of intermetallic compounds and mechanical alloying. We investigate the structural evolution and nature of transition by high-voltage electron microscopy, analytical electron microscopy, and X-ray diffraction.

Associations and Awards

ASM International Albert White Distinguished Teacher Award 2008

John Evans Professor of Materials Science and Engineering

Henry Marion Howe Medal from ASM, 1968

Achievement Award from the Japan Institute of Metals, 1972

Technological Institute Teaching Award, 1978

Fellow, ASM, 1983; Japan Society for the Promotion of Science, 1985

Founders Award from the Midwest Society of Electron Microscopists, 1987

Acta Metallurgica International Lecturer, 1993–95

Best Academic Paper Award, 10th Annual Advanced Composites Conference on Composites in Transportation, 1994

Publications

Complete list of publications.

"Boron-Implantation-Induced Crystalline-to-Amorphous Transition in Nickel:  An Experimental Verification of the Generalized Lindemann Criterion", Physical Review B 60 (1999) pages 800-814 (w/ P. C. Liu, P. R. Okamoto, and N. J. Zaluzec).

"Near-Threshhold Fatigue: A Review", International Journal of Fatigue:  Fatigue Damage of Structural Materials II (volume 21, Supplement, November 1999) pages S15-S34 (w/ L. Lawson and E. Y. Chen).

"Development of multimedia teaching materials for introductory Materials Science course--Project to develop teaching materials at the Department of Materials Science and Engineering, Northwestern University", Bulletin of Takaoka National College, Takaoka, Japan, vol 12 (1998) pages 27-38 (w/ T. Fujita).

"Microstructural Development of Galvanneal Coatings: A Review", Proceedings of the 4th International Conference on Zinc and Zinc Alloy Coated Steel Sheet, GALVATECH '98, pages 791-796 (1998).