Results 261 to 270 of about 1,350,570 (299)
Some of the next articles are maybe not open access.
Decarburization during plasma nitriding
Surface and Coatings Technology, 1999Abstract 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 +3 more
openaire +1 more source
Conventional DC Plasma Nitriding
2016As known before, the usual source for generating the plasma in plasma nitriding system is DC current (conventional or pulsed). This chapter just includes the results obtained by conventional DC plasma nitriding system on different grades of steels including stainless steels (austenitic, martensitic or precipitation hardening types), tool steels, and ...
Hossein Aghajani, Sahand Behrangi
openaire +1 more source
Metastable states and nitriding plasmas
Surface and Coatings Technology, 1997Abstract The results of investigations of slow diffusive effects in pre-breakdown nitrogen discharges, the effects of quenching by impurities, and the influence of surface conditions on metastable-particle–surface interactions are discussed briefly. This work suggests that two distinct neutral metastable species may be active in nitrogen plasmas used
M.J. Baldwin, S.C. Haydon, M.P. Fewell
openaire +1 more source
[The effect of plasma nitriding on tungsten burs].
Stomatologia mediterranea : SM, 1989The 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
Modeling of the Plasma Nitriding Process
1990Knowing that the reactive species are N and N2 (X, v) (1–3), we have developed a mathematical model of the plasma nitriding process, based on the fact that the most numerous particles in the plasma are the N2 (X, v=0, 1, 2, 3, 4) molecules, and that their creation is mainly due to electronic collisions on the molecular ground state N2 (X, v=0) (4 ...
J. L. Marchand +5 more
openaire +1 more source
Active Screen Plasma Nitriding
2016Conventional plasma nitriding has some limitations and disadvantages such as edge effect, hollow-cathode effect (The hollow-cathode effect usually seen in industry resulted by incorrect fixturing. This problem arises from insufficient distance between the parts to be nitrided.
Hossein Aghajani, Sahand Behrangi
openaire +1 more source
Influence of oxygen in plasma nitriding
International Heat Treatment and Surface Engineering, 2009AbstractThe development of low temperature nitriding treatments to enhance wear resistance over the past 40 years is reviewed. The progress achieved is illustrated with evidence from extensive laboratory investigations and industrial trials on textile machine components and other parts.
openaire +1 more source