Search Results - "Koch, C.C."

Deformation twinning in a nanocrystalline hcp Mg alloy by Wu, X.L., Youssef, K.M., Koch, C.C., Mathaudhu, S.N., Kecskés, L.J., Zhu, Y.T.

“…Nanocrystalline (nc) hexagonal close-packed (hcp) metals are rarely observed to deform by twinning, which is contrary to face-centered cubic metals. Here we…”
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Stabilized nanocrystalline iron-based alloys: Guiding efforts in alloy selection by Darling, K.A., VanLeeuwen, B.K., Semones, J.E., Koch, C.C., Scattergood, R.O., Kecskes, L.J., Mathaudhu, S.N.

“…► A regular solution model for solute segregation is capable of estimating the effect of solutes on the stability of nanocrystalline Fe. ► Stability increases…”
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Effect of annealing on microstructure, grain growth, and hardness of nanocrystalline Fe–Ni alloys prepared by mechanical alloying by Kotan, H., Saber, M., Koch, C.C., Scattergood, R.O.

“…► Iron–nickel powders were hardened to 9.5GPa by the mechanism of grain refinement strengthening using ball-milling. ► We annealed the prepared powders and…”
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Effect of stacking fault energy on deformation behavior of cryo-rolled copper and copper alloys by Bahmanpour, H., Kauffmann, A., Khoshkhoo, M.S., Youssef, K.M., Mula, S., Freudenberger, J., Eckert, J., Scattergood, R.O., Koch, C.C.

“…► Rolling of pure copper and Cu–12.1%Al–4.1%Zn at liquid nitrogen temperature. ► TEM observation shows that reduced stacking fault energy results in…”
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Evaluation of mechanical properties using shear–punch testing by Guduru, R.K., Darling, K.A., Kishore, R., Scattergood, R.O., Koch, C.C., Murty, K.L.

“…The evaluation of mechanical properties like yield and ultimate tensile strengths from shear–punch tests is important when the availability of material is…”
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Improved corrosion behavior of nanocrystalline zinc produced by pulse-current electrodeposition by Youssef, Kh.M.S, Koch, C.C, Fedkiw, P.S

“…Pulse electrodeposition was used to produce nanocrystalline (nc) zinc from zinc chloride electrolyte with polyacrylamide and thiourea as additives. Field…”
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Grain growth in nanocrystalline iron prepared by mechanical attrition by Malow, T.R, Koch, C.C

“…The grain growth in nanocrystalline Fe produced by high energy ball milling is investigated. Grain growth data are analysed using two different models of grain…”
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Influence of pulse plating parameters on the synthesis and preferred orientation of nanocrystalline zinc from zinc sulfate electrolytes by Youssef, K.M., Koch, C.C., Fedkiw, P.S.

“…The influence of pulse electrodeposition parameters (current on-time T on, current off-time T off, and pulse current density J p) was investigated on the…”
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Intermetallic matrix composites prepared by mechanical alloying—a review by Koch, C.C

“…This paper reviews research on intermetallic matrix composites synthesized by mechanical alloying. Mechanical alloying, as a powder processing method, results…”
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Severe deformation twinning in pure copper by cryogenic wire drawing by Kauffmann, A., Freudenberger, J., Geissler, D., Yin, S., Schillinger, W., Sarma, V. Subramanya, Bahmanpour, H., Scattergood, R., Khoshkhoo, M.S., Wendrock, H., Koch, C.C., Eckert, J., Schultz, L.

“…The effect of low-temperature on the active deformation mechanism is studied in pure copper. For this purpose, cryogenic wire drawing at liquid nitrogen…”
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The role of new particle surfaces in synthesizing bulk nanostructured metallic materials by powder metallurgy by Zhang, D.L., Koch, C.C., Scattergood, R.O.

“…The role of new particle surfaces in synthesizing bulk nanostructured metallic materials by consolidation of nanostructured powders and nanopowders is analysed…”
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Studies of deformation mechanisms in ultra-fine-grained and nanostructured Zn by Zhang, X, Wang, H, Scattergood, R.O, Narayan, J, Koch, C.C, Sergueeva, A.V, Mukherjee, A.K

“…The temperature, strain rate, grain size and grain size distribution effects on plastic deformation in ultra-fine-grained (UFG) and nanocrystalline Zn are…”
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Mechanical milling/alloying of intermetallics by Koch, C.C., Whittenberger, J.D.

“…Recent research on the structure and properties of intermetallic compounds processed by ball milling—i.e. mechanical attrition—is reviewed. Mechanical…”
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Evidence for the formation mechanism of nanoscale microstructures in cryomilled Zn powder by Zhang, X., Wang, H., Narayan, J., Koch, C.C.

“…Nanocrystalline Zn powder has been synthesized by a cryomilling method. The average grain size decreased exponentially with the cryomilling time and reached a…”
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Mechanical Properties of Bulk Nanocrystalline Aluminum-Tungsten Alloys by Rajulapati, K.V., Scattergood, R.O., Murty, K.L., Horita, Z., Langdon, T.G., Koch, C.C.

“…The Al-W alloy powders containing up to 4 at. pct W particles in a nanocrystalline Al matrix were synthesized by ball milling and then hot compacted (HC) at…”
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Mechanical properties of nanocrystalline Fe-Pb and Fe-Al2O3 by GUDURU, R. K, SCATTERGOOD, R. O, KOCH, C. C, MURTY, K. L, GURUSWAMY, S, MCCARTER, M. K

“…Fe, Fe-Al2O3, and Fe-Pb nanocrystalline alloys were prepared using ball milling. Fe-Al2O3 forms a nanocomposite and rule-of-mixtures hardening occurs with an…”
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On the elastic moduli of nanocrystalline Fe, Cu, Ni, and Cu–Ni alloys prepared by mechanical milling/alloying by Shen, T.D., Koch, C.C., Tsui, T.Y., Pharr, G.M.

“…Young's moduli of nanocrystalline Fe, Cu, Ni, and Cu-Ni alloys prepared by mechanical milling/alloying have been measured by the nanoindentation technique. The…”
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High-energy mechanical milling of poly(methyl methacrylate), polyisoprene and poly(ethylene-alt-propylene) by SMITH, A. P, SHAY, J. S, SPONTAK, R. J, BALIK, C. M, ADE, H, SMITH, S. D, KOCH, C. C

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The structure and property characteristics of amorphous/nanocrystalline silicon produced by ball milling by Shen, T.D., Koch, C.C., McCormick, T.L., Nemanich, R.J., Huang, J.Y., Huang, J.G.

“…The structural transformation of polycrystalline Si induced by high energy ball milling has been studied. The structure and property characteristics of the…”
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Tensile properties of low-stacking fault energy high-entropy alloys by Zaddach, A.J., Scattergood, R.O., Koch, C.C.

“…An equiatomic NiFeCrCoMn alloy, two non-equiatomic NiFeCrCoMn alloys optimized for low stacking fault energy, and an equiatomic NiFeCrCo alloy were produced by…”
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