Search Results - "Mills, M.J."

The evolution of the deformation substructure in a Ni-Co-Cr equiatomic solid solution alloy by Miao, J., Slone, C.E., Smith, T.M., Niu, C., Bei, H., Ghazisaeidi, M., Pharr, G.M., Mills, M.J.

“…The equiatomic NiCoCr alloy exhibits an excellent combination of strength and ductility, even greater than the FeNiCrCoMn high entropy alloy, and also displays…”
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Influence of deformation induced nanoscale twinning and FCC-HCP transformation on hardening and texture development in medium-entropy CrCoNi alloy by Slone, C.E., Chakraborty, S., Miao, J., George, E.P., Mills, M.J., Niezgoda, S.R.

“…Texture evolution during room-temperature tensile testing of recrystallized equimolar CrCoNi was studied using electron backscatter diffraction and electron…”
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Atomic-scale characterization and modeling of 60° dislocations in a high-entropy alloy by Smith, T.M., Hooshmand, M.S., Esser, B.D., Otto, F., McComb, D.W., George, E.P., Ghazisaeidi, M., Mills, M.J.

“…High-entropy alloys (HEAs) are an exciting new class of multi-component alloys some of which have unusual and remarkable properties. As of yet, little is…”
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An origin of functional fatigue of shape memory alloys by Gao, Y., Casalena, L., Bowers, M.L., Noebe, R.D., Mills, M.J., Wang, Y.

“…Functional fatigue (FF) during thermal and mechanical cycling, which leads to the generation of macroscopic irrecoverable strain and the loss of dimensional…”
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Ultra-high strength and ductility from rolling and annealing of a Ni-Cr-Co superalloy by Slone, C.E., Miao, J., Mills, M.J.

“…A new processing route is demonstrated for producing a nickel-based alloy with 1099 MPa tensile yield strength and 30% elongation. A chromium- and cobalt-rich…”
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Microtwinning and other shearing mechanisms at intermediate temperatures in Ni-based superalloys by Kovarik, L., Unocic, R.R., Li, Ju, Sarosi, P., Shen, C., Wang, Y., Mills, M.J.

“…In Ni-based superalloys, microtwinning is observed as an important deformation mechanism at intermediate temperature and low stress and strain rate conditions…”
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Structure analysis of a precipitate phase in an Ni-rich high-temperature NiTiHf shape memory alloy by Yang, F., Coughlin, D.R., Phillips, P.J., Yang, L., Devaraj, A., Kovarik, L., Noebe, R.D., Mills, M.J.

“…Thermal aging of the high-temperature shape memory alloy 50.3Ni–29.7Ti–20Hf (at.%) introduces a novel precipitate phase that plays an important role in…”
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Creep lifetime and microstructure evolution in boron-added 9Cr–1Mo heat-resistant steel by Matsunaga, Tetsuya, Hongo, Hiromichi, Tabuchi, Masaaki, Souissi, Maaouia, Sahara, Ryoji, Whitt, Collin, Zhang, Wei, Mills, M.J.

“…The relationship between creep lifetime and microstructure, especially precipitate morphology, of a new 9Cr heat-resistant steel containing 0.011 wt% boron was…”
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High-resolution electron microscopy of dislocation ribbons in a CMSX-4 superalloy single crystal by Vorontsov, V.A., Kovarik, L., Mills, M.J., Rae, C.M.F.

“…High-resolution scanning transmission electron microscopy (STEM) has been used to study the structure of dislocations in single crystal superalloy samples that…”
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Effect of Ni4Ti3 precipitation on martensitic transformation in Ti-Ni by ZHOU, N, SHEN, C, WAGNER, M. F.-X, EGGELER, G, MILLS, M. J, WANG, Y

“…Precipitation of Ni4Ti3 plays a critical role in determining the martensitic transformation path and temperature in Ni-Ti shape memory alloys. In this study,…”
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Transformation-induced plasticity during pseudoelastic deformation in Ni–Ti microcrystals by Norfleet, D.M., Sarosi, P.M., Manchiraju, S., Wagner, M.F.-X., Uchic, M.D., Anderson, P.M., Mills, M.J.

“…[1 1 0]-oriented microcrystals of solutionized 50.7 at.% Ni–Ti were prepared by focused ion beam machining and then tested in compression to investigate the…”
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Diffraction contrast STEM of dislocations: Imaging and simulations by Phillips, P.J., Brandes, M.C., Mills, M.J., De Graef, M.

“…The application of scanning transmission electron microscopy (STEM) to crystalline defect analysis has been extended to dislocations. The present contribution…”
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Characterization of the microstructure and mechanical properties of a 50.3Ni–29.7Ti–20Hf shape memory alloy by Coughlin, D.R., Phillips, P.J., Bigelow, G.S., Garg, A., Noebe, R.D., Mills, M.J.

“…The alloy 50.3Ni–29.7Ti–20Hf (at.%) exhibits attractive high-temperature shape memory properties. To determine the effect of aging on the behavior of this…”
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Ab initio analysis of Guinier–Preston–Bagaryatsky zone nucleation in Al–Cu–Mg alloys by Kovarik, L., Mills, M.J.

“…Due to the inherit difficulties associated with microstructure characterization in the early stages of aging, the origin of rapid hardening in Al–Cu–Mg alloys…”
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Atomic-resolution defect contrast in low angle annular dark-field STEM by Phillips, P.J., De Graef, M., Kovarik, L., Agrawal, A., Windl, W., Mills, M.J.

“…While traditional high-resolution STEM is performed by exclusively collecting electrons which have been scattered to high angles (i.e., HAADF), the present…”
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GPB zones and composite GPB/GPBII zones in Al–Cu–Mg alloys by Kovarik, L., Court, S.A., Fraser, H.L., Mills, M.J.

“…The needle-like, nanometer-scale metastable particles which are present after prolonged aging in an Al–1Cu–3Mg (wt.%) were investigated using high resolution…”
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Structural relationship between one-dimensional crystals of Guinier–Preston–Bagaryatsky zones in Al–Cu–Mg alloys by Kovarik, L., Mills, M.J.

“…► This work identifies and fully describes a new type of 1D-crystalof the GPB zone family based on high-resolution Scanning TransmissionElectron Microscopy. ►…”
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Characterization and modeling of defects generated in pseudoelastically deformed NiTi microcrystals by Bowers, M.L., Chen, X., De Graef, M., Anderson, P.M., Mills, M.J.

“…[110]-Oriented micropillars of 50.7at.% NiTi were compressed to stress-induce a single martensite plate. Scanning transmission electron microscopy identified…”
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An examination of the use of the Modified Jogged-Screw model for predicting creep behavior in Zircaloy-4 by Morrow, B.M., Kozar, R.W., Anderson, K.R., Mills, M.J.

“…The alloy Zircaloy-4 is used primarily as a structural material in nuclear reactors. A thorough understanding of the thermal creep response of such materials…”
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Role of aging time on the microstructure and shape memory properties of NiTiHfPd single crystals by Acar, E., Karaca, H.E., Basaran, B., Yang, F., Mills, M.J., Noebe, R.D., Chumlyakov, Y.I.

“…Shape memory properties of [111] oriented NiTiHfPd single crystals aged at 600°C for 48 and 72h were investigated through isobaric thermal cycling and…”
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