Results 271 to 280 of about 8,270 (316)

Active Screen Plasma Nitriding

AM&P Technical Articles, 2013
Abstract Active screen plasma nitriding and nitrocarburizing are relatively new processes in which a plasma discharge is applied to a metal screen surrounding the workload, generating highly reactive gas species that flow to the component surface.
H.-J. Spies, H. Biermann, I. Burlacov, K. Börner   +3 more
openaire   +1 more source

The Influence of Plasma Nitriding Time on Mechanical Properties of Plasma Nitriding steel

The aim of this study is to investigate the effect of plasma nitriding time on mechanical and tribological behavior of nitriding coatings produced by plasma-assisted chemical vapor deposition (PACVD). The heat treatment of quench and temper was carried out on hot work AISI H12 (DIN 1.2606) steel samples. A group of samples was plasma nitrided at 470 °C
Shafiei, Seyed Mohammad, Raeisifard, Hamed, Tejareh, Sara Sadat   +2 more
openaire   +1 more source

Plasma nitriding of Inconel 625

Surface Technology, 1979
Abstract Inconel 625 was nitrided in an N 2 + H 2 d.c. glow discharge, with the samples of Inconel being bombarded at a high temperature of about 500 °C and a high gas pressure of 3 Torr. Treatment for 10 h under these conditions enhanced the hardness by a factor of about 4.5 compared with the untreated alloy.
A.S. Rizk, D.J. McCulloch
openaire   +1 more source

Plasma Nitriding Characteristics of Sm2Fe17Nx

Chemistry Letters, 1992
Abstract Nitriding characteristics of Sm2Fe17Nx were studied by applying a plasma technique to Sm2Fe17 in a stream of N2-H2 mixed gas. The reaction took place even at room temperature, but the formation of nitride was limited around the surface region. Some mild heating was required to realize the well-nitriding up to bulk level.
Ken-ichi Machida, Eiji Yamamoto, Kuniaki Murase, Gin-ya Adachi, Masahiro Taniguchi, Ken-ichi Tanaka   +5 more
openaire   +1 more source

Plasma Nitridation of Metal Oxides

Chemistry of Materials, 1996
Three binary nitride materials (TiN, AlN, and GaN) were prepared by reaction of a microwave generated nitrogen/hydrogen plasma with TiO2, Al(OH)3, and Ga2O3, respectively.
Joel D. Houmes, Hans-Conrad zur Loye
openaire   +1 more source

Decarburization during plasma nitriding

Surface and Coatings Technology, 1999
Abstract This work reports on the decarburization of steel surfaces nitrided in d.c. plasma discharges. Mass spectrometry was used to detect the presence of chemical species, such as C and CH 3 , in plasma atmospheres containing hydrogen, and CO 2 in those containing oxygen.
P. Egert, A.M. Maliska, H.R.T. Silva, C.V. Speller   +3 more
openaire   +1 more source

Plasma-assisted nitriding of aluminum

Surface and Coatings Technology, 1994
Abstract Three aluminium materials, Al 99.5, AlMgSi 0.5 and AlZnMgCu 1.5 (1050, 6063 and 7075), were nitrited in a modified plasma- nitriding unit with a pulsating d.c. power supply. Prior to nitriding, the samples were cleaned in a plasma-assisted sputtering process in gas mixtures of argon and hydrogen.
H.-Y. Chen, H.-R. Stock, P. Mayr
openaire   +1 more source

[The effect of plasma nitriding on tungsten burs].

Stomatologia mediterranea : SM, 1989
The authors have experimented the nitriding's effects on some cilindrical burs carbide utilized in dentistry after disamination on the applications methodics on plasma nitriding in neurosurgery, orthopedic surgery and in odontotherapy. This reacherys point out that nitriding plasma a durings increase and cutis greater capacity establish.
CICCIU', Domenico, Russo S, Grasso C.
openaire   +2 more sources

Plasma electrolytic nitriding of steels

Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques, 2017
This review deals with the current scientific and technical results of the plasma electrolytic nitriding of constructional steels. The physicochemical features of diffusion saturation from vapor‒gas media are revealed and developed electrolyte compositions and nitriding modes are presented.
P. N. Belkin, S. A. Kusmanov
openaire   +1 more source

Plasma nitriding of microalloyed steel

Surface and Coatings Technology, 1995
Abstract 3icroalloyed or high strength low alloy (HSLA) steels are carbon-manganese steels containing small amounts of Nb, V or Ti. The excellent mechanical properties of these alloys, particularly high yield strength, usually obviate the need for expensive quench and tempering operations.
F. Mahboubi, M. Samandi, D. Dunne, A. Bloyce, T. Bell   +4 more
openaire   +1 more source