Zobrazeno 1 - 10
of 39
pro vyhledávání: '"R. E. Schacherl"'
Publikováno v:
HTM Journal of Heat Treatment and Materials. 71:181-190
The evolution of the microstructure and the surface residual stress upon controlled gaseous nitriding of quenched and tempered 31CrMoV9 steel was investigated by varying the nitriding potential and the nitriding time at the nitriding temperature of 5
Publikováno v:
Metallurgical and Materials Transactions A. 46:328-336
Internal nitride development in iron-based quaternary Fe-Cr-Mo-V alloy, as a model alloy for 31CrMoV9 steel, was investigated by performing controlled gaseous nitriding experiments. The nitride-precipitation process starts with the development of nan
Publikováno v:
Metallurgical and Materials Transactions A. 45:6173-6186
Pure iron and a series of iron-based Fe-Me alloys (with Me = Al, Si, Cr, Co, Ni, and Ge) were nitrided in a NH3/H2 gas mixture at 923 K (650 °C). Different nitriding potentials were applied to investigate the development of pores under ferrite and a
Publikováno v:
Acta Materialia. 76:394-403
Iron-based ternary Fe–V–Si and binary Fe–Si alloy specimens were nitrided in a NH 3 /H 2 gas mixture at 580 °C (853 K) with a nitriding potential of r N = 0.1 atm −1/2 until nitrogen saturation in the specimens was achieved. In contrast to p
Autor:
R. E. Schacherl, Benjamin Schwarz, Ewald Bischoff, Eric J. Mittemeijer, Sai Ramudu Meka, Louis Straßberger, Paul Rossi, Felix Jörg
Publikováno v:
Philosophical Magazine. 94:3098-3119
Specimens of iron-based binary Fe–Si alloy and ternary Fe–Me–Si alloys (with Me = Ti, Cr and V) were nitrided at 580 °C in a NH3/H2-gas mixture applying a nitriding potential of 0.1 atm−1/2 until nitrogen saturation in the specimens was atta
Autor:
Sai Ramudu Meka, Eric J. Mittemeijer, Bastian Rheingans, Jendrik Stein, R. E. Schacherl, Minsu Jung
Publikováno v:
International Journal of Materials Research. 104:1053-1065
To accurately define important phase boundaries in the iron–nitrogen (temperature–composition) phase diagram as well as the (temperature–potential) Lehrer diagram, the solubility of nitrogen in ferrite was determined as a function of the nitrid
Autor:
Thomas Waldenmaier, R. E. Schacherl, Ewald Bischoff, E. J. Mittemeijer, Sai Ramudu Meka, H. Selg
Publikováno v:
Metallurgical and Materials Transactions A. 44:4059-4070
Nitriding of recrystallized and cold-rolled Fe-1 at. pct Mo alloy at 853 K (580 °C) in a NH3/H2 gas mixture leads to the formation of cubic nanometer-sized Mo2N-type precipitate platelets. These platelets obey a Baker–Nutting orientation relations
Autor:
Sai Ramudu Meka, T. Woehrle, H. Selg, I. Bernstein, Thomas Waldenmaier, R. E. Schacherl, E. J. Mittemeijer, Ewald Bischoff
Publikováno v:
Philosophical Magazine. 93:2133-2160
Upon nitriding of binary Fe–1 at.% Mo alloy in a NH3/H2 gas mixture under conditions (thermodynamically) allowing γ′-Fe4N1– x compound layer growth (nitriding potential: 0.7 atm−1/2 at 753 K (480 °C) – 823 K (550 °C)), a strong dependenc
Publikováno v:
Journal of Materials Science. 48:4321-4335
The microstructure and the kinetics of growth of the nitrided zone of a Mo-containing maraging steel were investigated by performing gaseous nitriding at temperatures between 713 K (440 °C) and 793 K (520 °C) and at nitriding potentials up to 0.5 a
Publikováno v:
Defect and Diffusion Forum. :284-289
The precipitation of tungsten nitride upon internal nitriding of ferritic Fe-0.5 at.% W alloy was investigated at 610°C in a flowing NH3/H2 gas mixture. Different tungsten nitrides developed successively; the thermodynamically stable hexagonal δ-WN