Search Results - "HEUER, A. H"

Oxygen and aluminum diffusion in α-Al2O3 : How much do we really understand? by HEUER, A. H

“…Research activities relating to oxygen and aluminium diffusion in doped and undoped alpha-alumina, both polycrystalline and single crystal, are reviewed…”
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Structural basis for the fracture toughness of the shell of the conch Strombus gigas by Heuer, A. H, Kamat, S, Su, X, Ballarini, R

“…Natural composite materials are renowned for their mechanical strength and toughness: despite being highly mineralized, with the organic component constituting…”
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Carbon supersaturation due to paraequilibrium carburization: Stainless steels with greatly improved mechanical properties by Michal, G.M., Ernst, F., Kahn, H., Cao, Y., Oba, F., Agarwal, N., Heuer, A.H.

“…Low-temperature gas-phase carburization has been used to generate very high surface interstitial carbon contents, up to ∼12 at.%, in a 316L austenitic…”
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Core Structure of Basal Dislocations in Deformed Sapphire (α-Al₂O₃) by Heuer, A.H, Jia, C.L, Lagerlöf, K.P.D

“…The atomic structure of dislocation cores is decisive for the understanding of plasticity in crystalline solids. The core structure of dislocations in sapphire…”
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Enhanced fatigue resistance in 316L austenitic stainless steel due to low-temperature paraequilibrium carburization by Agarwal, N., Kahn, H., Avishai, A., Michal, G., Ernst, F., Heuer, A.H.

“…Fully reversed fatigue tests have been performed on wrought 316L stainless steel samples after low-temperature carburization. The resulting 25 μm case depth,…”
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Carbide precipitation in austenitic stainless steel carburized at low temperature by Ernst, F., Cao, Y., Michal, G.M., Heuer, A.H.

“…Low-temperature gas-phase carburization can significantly improve the surface mechanical properties and corrosion resistance of austenitic stainless steel by…”
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Orientation dependence of nitrogen supersaturation in austenitic stainless steel during low-temperature gas-phase nitriding by Wu, D., Kahn, H., Dalton, J.C., Michal, G.M., Ernst, F., Heuer, A.H.

“…A hardened surface layer was produced on 316L austenitic stainless steel via low-temperature gas-phase nitriding. The effects of nitriding temperature,…”
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Fatigue Failure in Polysilicon Not Due to Simple Stress Corrosion Cracking by Kahn, H., Ballarini, R., Bellante, J. J., Heuer, A. H.

“…In the absence of a corrosive environment, brittle materials such as silicon should be immune to cyclic fatigue. However, fatigue effects are well known in…”
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Mechanical fatigue of polysilicon: Effects of mean stress and stress amplitude by Kahn, H., Chen, L., Ballarini, R., Heuer, A.H.

“…Polycrystalline silicon (polysilicon) fatigue specimens with micrometer-sized dimensions were fabricated and subjected to cyclic loading using an integrated…”
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Enhanced corrosion resistance of interstitially hardened stainless steel: Implications of a critical passive layer thickness for breakdown by Heuer, A.H., Kahn, H., Ernst, F., Michal, G.M., Hovis, D.B., Rayne, R.J., Martin, F.J., Natishan, P.M.

“…Immense interstitial hardening of 316L austenitic stainless steel via low-temperature paraequilibrium carburization also leads to greatly improved corrosion…”
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Poisson Effects on X-Ray Diffraction Patterns in Low-Temperature-Carburized Austenitic Stainless Steel by Kahn, H., Michal, G. M., Ernst, F., Heuer, A. H.

“…Austenitic stainless steel was carburized at low temperature to generate a hard surface layer. X-ray diffractometry (XRD) revealed that this “case” contained…”
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Carbon paraequilibrium in austenitic stainless steel by MICHAL, G. M, ERNST, F, HEUER, A. H

“…Carburization of uustenitic stainless steels under paraequilibrium conditions-i.e., at (low) temperatures where there is essentially no substitutional…”
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Electrostrictive stresses and breakdown of thin passive films on stainless steel by Heuer, A.H., Kahn, H., Natishan, P.M., Martin, F.J., Cross, L.E.

“…A chemomechanical model of passive film breakdown (pitting corrosion) of stainless steel undergoing anodic oxidation is presented; it also likely has validity…”
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Enhanced Carbon Diffusion in Austenitic Stainless Steel Carburized at Low Temperature by Ernst, F., Avishai, A., Kahn, H., Gu, X., Michal, G.M., Heuer, A.H.

“…Austenitic stainless steel AISI 316L was carburized by a novel, low-temperature gas-phase process. Using a calibrated scanning Auger microprobe (SAM) analysis…”
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Transient Oxidation of a γ-Ni–28Cr–11Al Alloy by Hu, L., Hovis, D. B., Heuer, A. H.

“…γ-NiCrAl alloys with relatively low Al contents tend to form a layered oxide scale during the early stages of oxidation, rather than an exclusive α-Al 2 O 3…”
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Enhanced Corrosion Resistance of Stainless Steel Carburized at Low Temperature by Martin, F.J., Natishan, P.M., Lemieux, E.J., Newbauer, T.M., Rayne, R.J., Bayles, R.A., Kahn, H., Michal, G.M., Ernst, F., Heuer, A.H.

“…The pitting corrosion resistance of surface-modified 316L austenitic stainless steel and N08367 (a “superaustenitic” stainless steel) were evaluated in 0.6 M…”
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Interstitial Hardening of Type 316L Stainless Steel to Improve Corrosion Resistance and Mechanical Properties by NATISHAN, P. M, BAYLES, R. A, RAYNE, R, LONGAZEL, T, MARTIN, F. J, KAHN, H, HEUER, A. H

“…A low-temperature (450°C to 500°C), gas-phase interstitial hardening (IH) process that introduces substantial amounts of carbon, without carbide formation,…”
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Paraequilibrium Carburization of Duplex and Ferritic Stainless Steels by Michal, G. M., Gu, X., Jennings, W. D., Kahn, H., Ernst, F., Heuer, A. H.

“…AISI 301 and E-BRITE stainless steels were subjected to low-temperature (743 K) carburization experiments using a commercial technology developed for…”
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Tissue Regeneration in the Shell of the Giant Queen Conch, Strombus gigas by Su, Xiao-Wei, Zhang, Dong-Mei, Heuer, A. H

“…The crossed-lamellar microarchitecture (microstructure) of the shell of Strombus gigas, the giant Queen conch native to Caribbean habitats, is the most common…”
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Fatigue crack growth in interstitially hardened AISI 316L stainless steel by Hsu, J.-P., Wang, D., Kahn, H., Ernst, F., Michal, G.M., Heuer, A.H.

“…► Carburization-induced residual stresses improve fatigue behavior in air and NaCl. ► Low temperature carburization increases the fatigue stress intensity…”
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