Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, Sep 1, 2001
... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Prope... more ... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Properties of Nanocrystalline Materials, The Minerals, Metals and Materials Society, 1996, p. 93.. [9] C. Xiao, RA Mirshams, SH Whang, WM Yin, Mater. Sci. Eng. A 301 (1) (2001) 35.. ...
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, Mar 1, 2001
... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (... more ... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (1999), p. 743. [10] N Wang, ZR Wang, KT Aust and U Erb. Acta Mater., 45 4 (1997), p. 1655. [11] U Klement, U Erb, AM El-Sherik and KT Aust. Mater. Sci. Eng., A203 (1995), p. 177. ...
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, Mar 1, 2001
The potential engineering applications of nanocrystalline materials need more detailed study on d... more The potential engineering applications of nanocrystalline materials need more detailed study on deformation and fracture mechanisms at room and elevated temperatures under tensile loading. This paper reports results of a series of experiments carried out on nickel and carbon doped nanocrystalline nickel with different carbon concentrations from 500 to 1000 ppm at room temperature to 300°C. Grain growth was observed in nanocrystalline nickels as the testing temperature increases. A fast grain growth was noticed at 300°C. Pure nanocrystalline nickel experienced an abnormal grain growth at 500°C and its tensile properties reduced to a very low level. The addition of carbon exerted a potential effect to enhance the stability of the microstructure in nanocrystalline nickel at intermediate temperatures. However, carbon doped nickels exhibited lower tensile properties. Nanocrystalline nickels displayed a conventional Hall–Petch relationship. The results are discussed in relation to microstructural characteristics by using TEM and SEM.
The potential engineering applications of nanocrystalline materials need more detailed study on d... more The potential engineering applications of nanocrystalline materials need more detailed study on deformation and fracture mechanisms at room and elevated temperatures under tensile loading. This paper reports results of a series of experiments carried out on nickel and carbon doped nanocrystalline nickel with different carbon concentrations from 500 to 1000 ppm at room temperature to 300°C. Grain growth was observed in nanocrystalline nickels as the testing temperature increases. A fast grain growth was noticed at 300°C. Pure nanocrystalline nickel experienced an abnormal grain growth at 500°C and its tensile properties reduced to a very low level. The addition of carbon exerted a potential effect to enhance the stability of the microstructure in nanocrystalline nickel at intermediate temperatures. However, carbon doped nickels exhibited lower tensile properties. Nanocrystalline nickels displayed a conventional Hall–Petch relationship. The results are discussed in relation to microstructural characteristics by using TEM and SEM.
... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Prope... more ... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Properties of Nanocrystalline Materials, The Minerals, Metals and Materials Society, 1996, p. 93.. [9] C. Xiao, RA Mirshams, SH Whang, WM Yin, Mater. Sci. Eng. A 301 (1) (2001) 35.. ...
... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (... more ... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (1999), p. 743. [10] N Wang, ZR Wang, KT Aust and U Erb. Acta Mater., 45 4 (1997), p. 1655. [11] U Klement, U Erb, AM El-Sherik and KT Aust. Mater. Sci. Eng., A203 (1995), p. 177. ...
ABSTRACT A pulsed TEA-CO2 laser in combination with the dynamic fluidized bed powder feeder was e... more ABSTRACT A pulsed TEA-CO2 laser in combination with the dynamic fluidized bed powder feeder was employed to deposit a thin CeO2 buffer layer on the polycrystalline Ni-substrate in a non-vacuum environment. Use of the 30° powder jet inclination with respect to the laser beam axis along with the nano size precursor powder deposited a smooth layer on the entire surface of the substrate. Both EDS and X-ray diffractometry analyses were employed to confirm the stoichiometric nature of the deposited CeO2 buffer layer.
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, Sep 1, 2001
... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Prope... more ... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Properties of Nanocrystalline Materials, The Minerals, Metals and Materials Society, 1996, p. 93.. [9] C. Xiao, RA Mirshams, SH Whang, WM Yin, Mater. Sci. Eng. A 301 (1) (2001) 35.. ...
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, Mar 1, 2001
... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (... more ... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (1999), p. 743. [10] N Wang, ZR Wang, KT Aust and U Erb. Acta Mater., 45 4 (1997), p. 1655. [11] U Klement, U Erb, AM El-Sherik and KT Aust. Mater. Sci. Eng., A203 (1995), p. 177. ...
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, Mar 1, 2001
The potential engineering applications of nanocrystalline materials need more detailed study on d... more The potential engineering applications of nanocrystalline materials need more detailed study on deformation and fracture mechanisms at room and elevated temperatures under tensile loading. This paper reports results of a series of experiments carried out on nickel and carbon doped nanocrystalline nickel with different carbon concentrations from 500 to 1000 ppm at room temperature to 300°C. Grain growth was observed in nanocrystalline nickels as the testing temperature increases. A fast grain growth was noticed at 300°C. Pure nanocrystalline nickel experienced an abnormal grain growth at 500°C and its tensile properties reduced to a very low level. The addition of carbon exerted a potential effect to enhance the stability of the microstructure in nanocrystalline nickel at intermediate temperatures. However, carbon doped nickels exhibited lower tensile properties. Nanocrystalline nickels displayed a conventional Hall–Petch relationship. The results are discussed in relation to microstructural characteristics by using TEM and SEM.
The potential engineering applications of nanocrystalline materials need more detailed study on d... more The potential engineering applications of nanocrystalline materials need more detailed study on deformation and fracture mechanisms at room and elevated temperatures under tensile loading. This paper reports results of a series of experiments carried out on nickel and carbon doped nanocrystalline nickel with different carbon concentrations from 500 to 1000 ppm at room temperature to 300°C. Grain growth was observed in nanocrystalline nickels as the testing temperature increases. A fast grain growth was noticed at 300°C. Pure nanocrystalline nickel experienced an abnormal grain growth at 500°C and its tensile properties reduced to a very low level. The addition of carbon exerted a potential effect to enhance the stability of the microstructure in nanocrystalline nickel at intermediate temperatures. However, carbon doped nickels exhibited lower tensile properties. Nanocrystalline nickels displayed a conventional Hall–Petch relationship. The results are discussed in relation to microstructural characteristics by using TEM and SEM.
... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Prope... more ... [8] U. Erb, G. Plumbo, R. Zugic, KT Aust, in: SJ Singh, FH Fores (Eds.), Processing and Properties of Nanocrystalline Materials, The Minerals, Metals and Materials Society, 1996, p. 93.. [9] C. Xiao, RA Mirshams, SH Whang, WM Yin, Mater. Sci. Eng. A 301 (1) (2001) 35.. ...
... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (... more ... Stat. Commun., 79 (1991), p. 683. [9] R Hayes, V Tellkamp and E Lavernia. Scr. Mater., 41 7 (1999), p. 743. [10] N Wang, ZR Wang, KT Aust and U Erb. Acta Mater., 45 4 (1997), p. 1655. [11] U Klement, U Erb, AM El-Sherik and KT Aust. Mater. Sci. Eng., A203 (1995), p. 177. ...
ABSTRACT A pulsed TEA-CO2 laser in combination with the dynamic fluidized bed powder feeder was e... more ABSTRACT A pulsed TEA-CO2 laser in combination with the dynamic fluidized bed powder feeder was employed to deposit a thin CeO2 buffer layer on the polycrystalline Ni-substrate in a non-vacuum environment. Use of the 30° powder jet inclination with respect to the laser beam axis along with the nano size precursor powder deposited a smooth layer on the entire surface of the substrate. Both EDS and X-ray diffractometry analyses were employed to confirm the stoichiometric nature of the deposited CeO2 buffer layer.
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