Plasma post oxidation of nitrocarburized hot work steel samples
Апстракт
Pulse plasma oxidation of untreated, salt bath nitrocarburized and plasma nitrided/nitrocarburized samples made of hot work steel grade H11 was investigated. A continuous multi-step plasma processing was performed consisting of a half an hour plasma nitriding at 520 degreesC followed by 3.5 h nitrocarburizing at the same temperature and by a subsequent post-oxidation in a low current density H2O glow discharge during 45 min at 450 degreesC. The salt bath nitrocarburizing was carried out at a temperature of 580 degreesC for 210 min and was followed by the oil quench. In order to compare the oxide layer growth on the base material and on the epsilon-Fe-2(N,C)(1-x) layer, the salt bath treated sample. was half cut and plasma post-oxidized in a 80% H2O-20% H-2 glow discharge for 45 min at the temperature of 480 degreesC. In plasma processing pulse power supply was used with 57 mus pulse duration and 3 mus pulse pause. The surface structures were analyzed by optical microscopy, SEM and XRD,... while Vickers microhardness test was used for measuring the surface microhardness and microhardness distribution over the sample cross sections. On the nitrocarburized surfaces XRD analyses revealed the existence of a superficial magnetite oxide layer and the presence of a e phase and a small amount of gamma phase, while a hematite Fe2O3 layer was formed on untreated sample surface. (C) 2003 Elsevier B.V. All rights reserved.
Кључне речи:
plasma nitrocarburizing / plasma post-oxidation / salt bath nitrocarburizing pulse plasma / magnetite / hematite / hot work steelИзвор:
Surface and Coatings Technology, 2004, 177, 277-283Напомена:
- 30th International Conference on Metallurgical Coatings and Thin Films, Apr 28-May 02, 2003, San Diego, CA
DOI: 10.1016/j.surfcoat.2003.09.012
ISSN: 0257-8972
WoS: 000189038100041
Scopus: 2-s2.0-1342310593
Колекције
Институција/група
VinčaTY - JOUR AU - Zlatanovic, M AU - Popovic, N AU - Bogdanov, Žarko AU - Zlatanovic, S PY - 2004 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6403 AB - Pulse plasma oxidation of untreated, salt bath nitrocarburized and plasma nitrided/nitrocarburized samples made of hot work steel grade H11 was investigated. A continuous multi-step plasma processing was performed consisting of a half an hour plasma nitriding at 520 degreesC followed by 3.5 h nitrocarburizing at the same temperature and by a subsequent post-oxidation in a low current density H2O glow discharge during 45 min at 450 degreesC. The salt bath nitrocarburizing was carried out at a temperature of 580 degreesC for 210 min and was followed by the oil quench. In order to compare the oxide layer growth on the base material and on the epsilon-Fe-2(N,C)(1-x) layer, the salt bath treated sample. was half cut and plasma post-oxidized in a 80% H2O-20% H-2 glow discharge for 45 min at the temperature of 480 degreesC. In plasma processing pulse power supply was used with 57 mus pulse duration and 3 mus pulse pause. The surface structures were analyzed by optical microscopy, SEM and XRD, while Vickers microhardness test was used for measuring the surface microhardness and microhardness distribution over the sample cross sections. On the nitrocarburized surfaces XRD analyses revealed the existence of a superficial magnetite oxide layer and the presence of a e phase and a small amount of gamma phase, while a hematite Fe2O3 layer was formed on untreated sample surface. (C) 2003 Elsevier B.V. All rights reserved. T2 - Surface and Coatings Technology T1 - Plasma post oxidation of nitrocarburized hot work steel samples VL - 177 SP - 277 EP - 283 DO - 10.1016/j.surfcoat.2003.09.012 ER -
@article{ author = "Zlatanovic, M and Popovic, N and Bogdanov, Žarko and Zlatanovic, S", year = "2004", abstract = "Pulse plasma oxidation of untreated, salt bath nitrocarburized and plasma nitrided/nitrocarburized samples made of hot work steel grade H11 was investigated. A continuous multi-step plasma processing was performed consisting of a half an hour plasma nitriding at 520 degreesC followed by 3.5 h nitrocarburizing at the same temperature and by a subsequent post-oxidation in a low current density H2O glow discharge during 45 min at 450 degreesC. The salt bath nitrocarburizing was carried out at a temperature of 580 degreesC for 210 min and was followed by the oil quench. In order to compare the oxide layer growth on the base material and on the epsilon-Fe-2(N,C)(1-x) layer, the salt bath treated sample. was half cut and plasma post-oxidized in a 80% H2O-20% H-2 glow discharge for 45 min at the temperature of 480 degreesC. In plasma processing pulse power supply was used with 57 mus pulse duration and 3 mus pulse pause. The surface structures were analyzed by optical microscopy, SEM and XRD, while Vickers microhardness test was used for measuring the surface microhardness and microhardness distribution over the sample cross sections. On the nitrocarburized surfaces XRD analyses revealed the existence of a superficial magnetite oxide layer and the presence of a e phase and a small amount of gamma phase, while a hematite Fe2O3 layer was formed on untreated sample surface. (C) 2003 Elsevier B.V. All rights reserved.", journal = "Surface and Coatings Technology", title = "Plasma post oxidation of nitrocarburized hot work steel samples", volume = "177", pages = "277-283", doi = "10.1016/j.surfcoat.2003.09.012" }
Zlatanovic, M., Popovic, N., Bogdanov, Ž.,& Zlatanovic, S.. (2004). Plasma post oxidation of nitrocarburized hot work steel samples. in Surface and Coatings Technology, 177, 277-283. https://doi.org/10.1016/j.surfcoat.2003.09.012
Zlatanovic M, Popovic N, Bogdanov Ž, Zlatanovic S. Plasma post oxidation of nitrocarburized hot work steel samples. in Surface and Coatings Technology. 2004;177:277-283. doi:10.1016/j.surfcoat.2003.09.012 .
Zlatanovic, M, Popovic, N, Bogdanov, Žarko, Zlatanovic, S, "Plasma post oxidation of nitrocarburized hot work steel samples" in Surface and Coatings Technology, 177 (2004):277-283, https://doi.org/10.1016/j.surfcoat.2003.09.012 . .