Carl Koch

Kobe Steel Distinguished Professor

  • 919-515-7340
  • Engineering Building I (EB1) 3006

Carl Koch was a research group leader with the Metals and Ceramics Division of Oak Ridge National Laboratory before he joined the NCSU faculty in 1983.

Koch’s research in recent years has focused on the synthesis, characterization and properties of metastable materials. Metastable materials with unique structures or microstructures that we have studied include metallic glasses, intermetallic compounds, nanocrystalline materials and polymer alloys. The chief nonequilibrium processing methods used to prepare metastable materials are rapid solidification from the liquid phase (at about 106 oC/s) and mechanical attrition of powders in high-energy ball mills. Koch was the first researcher to demonstrate that amorphous alloys metallic glasses could be made by ball milling certain elemental powder mixtures by the technique known as mechanical alloying. Recent research has turned to nanocrystalline materials prepared by either mechanical attrition or controlled crystallization of amorphous precursors formed by rapid solidification. His group’s interest in these materials is due to their special mechanical and soft magnetic properties.

Education

Ph.D. 1964

Metallurgy

Case Institute of Technology

M.S. 1961

Metallurgy

Case Institute of Technology

B.S. 1959

Metallurgy

Case Institute of Technology

Publications

Achieving Gradient Martensite Structure and Enhanced Mechanical Properties in a Metastable beta Titanium Alloy
Ma, X., Li, F., Sun, Z., Hou, J., Fang, X., Zhu, Y., & Koch, C. C. (2019), METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 50A(5), 2126–2138. https://doi.org/10.1007/s11661-019-05157-5
Mechanical behavior of bulk ultrafine-grained and nanocrystalline Zn
Zhang, X., Wang, H., & Koch, C. C. (2019), Reviews on Advanced Materials Science, 6(2), 53–93.
High strength, ductility, and electrical conductivity of in-situ consolidated nanocrystalline Cu-1%Nb
Youssef, K. M., Abaza, M. A., Scattergood, R. O., & Koch, C. C. (2018), Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing, 711, 350–355. https://doi.org/10.1016/j.msea.2017.11.060
Bulk nanostructured materials
Koch, C. C., Langdon, T. G., & Lavernia, E. J. (2017), Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, 48A(11), 5181–5199. https://doi.org/10.1007/s11661-017-4298-0
Effect of oxygen content on thermal stability of grain size for nanocrystalline Fe10Cr and Fe14Cr4Hf alloy powders
Roodposhti, P. S., Saber, M., Koch, C., Scattergood, R., & Shahbazmohamadi, S. (2017), Journal of Alloys and Compounds, 720, 510–520. https://doi.org/10.1016/j.jallcom.2017.05.261
Nanocrystalline high-entropy alloys
Koch, C. C. (2017), Journal of Materials Research. https://doi.org/10.1557/jmr.2017.341
On the origin and behavior of irradiation-induced c-component dislocation loops in magnesium
Xu, W., Zhang, Y., Cheng, G., Mathaudhu, S. N., Scattergood, R. O., Koch, C. C., … Zhu, Y. T. (2017), Acta Materialia, 131, 457–466. https://doi.org/10.1016/j.actamat.2017.04.015
Self-organizing maps for pattern recognition in design of alloys
Jha, R., Dulikravich, G. S., Chakraborti, N., Fan, M., Schwartz, J., Koch, C. C., … Egorov, I. N. (2017), Materials and Manufacturing Processes, 32(10), 1067–1074. https://doi.org/10.1080/10426914.2017.1279319
Algorithms for design optimization of chemistry of hard magnetic alloys using experimental data
Jha, R., Dulikravich, G. S., Chakraborti, N., Fan, M., Schwartz, J., Koch, C. C., … Egorov, I. N. (2016), Journal of Alloys and Compounds, 682, 454–467. https://doi.org/10.1016/j.jallcom.2016.04.218
Effect of nano-oxide particle size on radiation resistance of iron-chromium alloys
Xu, W. Z., Li, L. L., Valdez, J. A., Saber, M., Zhu, Y. T., Koch, C. C., & Scattergood, R. O. (2016), Journal of Nuclear Materials, 469, 72–81. https://doi.org/10.1016/j.jnucmat.2015.11.044

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