%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3ESR3H2 8JMKD3MGPCW/3ET2RFS
%@archivingpolicy denypublisher denyfinaldraft24
%@dissemination WEBSCI; PORTALCAPES; COMPENDEX.
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%@resumeid 8JMKD3MGP5W/3C9JHSB
%@resumeid 8JMKD3MGP5W/3C9JGJ8
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%@usergroup marciana
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%3 chromium enrichment.pdf
%X When performing nitriding of stainless steels, there is a decrease or even complete depletion of chromium in the nitrogen rich region just beneath the surface, inhibiting the formation of passivated Cr oxide layer, beneficial to withstand corrosive attacks and Cr/Fe nitrides, responsible for hardness enhancement. To overcome this problem, a hybrid technique was used, consisting of depositing a thin chromium film on steel surface and then bombarding it with nitrogen ions. By a complex recoil process, chromium atoms are implanted into the steel matrix. Plasma immersion ion implantation (PIII) was used in this bombardment. The new Cr-rich layer allows the formation of Cr oxides and nitrides. Treated surfaces were characterized by Auger electron spectroscopy (AES) and conversion electron Mossbauer spectroscopy (CEMS), showing formation of a new Cr-rich layer.
%8 Oct.
%N 1-2
%T Chromium enrichment of AISI 304 stainless steel surface after nitrogen ion recoil bombardment of chromium film
%@secondarytype PRE PI
%K PLASMA, Plasma immersion ions implantation, CEMS, AES, SS 304, Enhanced diffusion, Iron, PLASMA, Implantação iônica por imersão de plasma, Difusão reforçada, Ferro.
%@visibility shown
%@group LAP-INPE-MCT-BR
%@group LAP-INPE-MCT-BR
%@group LAS-INPE-MCT-BR
%@secondarykey INPE-13203-PRE/8459
%@copyholder SID/SCD
%@issn 0168-583X
%@issn 0167-5087
%2 sid.inpe.br/iris@1916/2005/11.25.16.35.26
%@affiliation Instituto Nacional de Pesquisas Espaciais, Laboratório Associado de Plasmas (INPE. LAP)
%@affiliation Instituto Nacional de Pesquisas Espaciais, Laboratório Associado de Plasma (INPE. LAP)
%@affiliation Instituto Nacional de Pesquisas Espaciais, Laboratorio Associado de Sensores e Materiais (INPE. LAS)
%@affiliation Forschungszentrum Rossendorf, Institute of Ion Beam Physics and Materials Research
%@affiliation Forschungszentrum Rossendorf, Institute of Ion Beam Physics and Materials Research
%@project Implantação Iônica por Imersão em Plasma (IIIP)
%B Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
%P 194-198
%4 sid.inpe.br/iris@1916/2005/11.25.16.35
%D 2005
%V 240
%A Gomes, Geraldo Francisco,
%A Ueda, Mário,
%A Beloto, Antonio Fernando,
%A Reuther, H.,
%A Richter, E.,
%@area FISPLASMA