High Nitrogen Austenitic Stainless Steel
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Characterization of the Austenite Reformation Mechanisms as a Function of the Initial Ferritic State in a UNS S32304 Duplex Stainless Steel
Aiming to better understand the effects of heat treatment parameters on Ferrite-Austenite phase transformation in a 2304 duplex stainless steel different thermal cycles were applied to this steel in a quenching dilatometer. The obtained microstructures were characterized by optical microscopy, transmission electron microscopy and electron backscatter diffrac
Mat. Res.. Publicado em: 17/08/2017
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2. Efeito do encruamento na cinética de nitretação dos aços inoxidáveis austeníticos
This paper deals with the effects of cold work on the nitriding kinetics and surface micro-hardness of the 3XX family of austenitic stainless steels. Nitriding is a thermo-chemical treatment based on the nitrogen diffusion and, under some specific circumstances, carbon in lower quantities, in to a ferrous matrix. The nitriding process improves particularly h
Publicado em: 2010
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3. STUDY OF THE DYNAMIC RECRYSTALLIZATION DURING THE DEFORMATION THE HOT ONE OF A STEEL ISO 5832-9 / ESTUDO DA RECRISTALIZAÇÃO DINÂMICA DURANTE A DEFORMAÇÃO A QUENTE DE UM AÇO ISO 5832-9
Os aços inoxidáveis austeníticos possuem um baixo valor econômico quando comparados ao titânio e suas ligas, considerados os mais resistentes à corrosão em meio biológico, e há mais de cinquenta anos são amplamente utilizados na confecção de implantes ortopédicos, em especial no serviço de saúde pública. Atualmente o aço ISO 5832-1 (ASTM F 1
Publicado em: 2010
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4. Characteristics of austenitic stainless steel nitrided in a hybrid glow discharge plasma
A nitriding process based on two distinct nitrogen glow discharge modes, with sample temperatures ranging from 380 0C to 480 0C, was employed to treat the surface of austenitic stainless steel (SS 304). The temperature is controlled exclusively by switching the operation conditions of the discharges. First mode of operation is the conventional one, named cat
Brazilian Journal of Physics. Publicado em: 2009-09
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5. CORROSION OF ADVANCED STAINLESS STEEL IN PHYSIOLOGICAL SOLUTIONS / Corrosão de aços inoxidáveis avançados em meios fisiológicos
The main objective of this study was to determine the corrosion behavior of advanced stainless steels (SS) in physiological solutions to evaluate their potential for use as biomaterials. Four stainless steels were tested: a superferritic stainless steel (DIN W. Nr. 1.4575), Incoloy MA 956, containing aluminum and yttrium oxide, an austenitic stainless steel
Publicado em: 2008
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6. Superficial Nitrogen Enrichment of Austenitic stainless steel ISO 5832-1 / ElevaÃÃo do teor superficial de nitrogÃnio no aÃo inoxidÃvel austenÃtico ISO 5832-1
The insertion of nitrogen in stainless steel has been studied since 1925. When in solid solution it produces a few effects such as: increase in mechanical strength, hardness, resistance to fatigue, to wear and corrosion. Although benefic effects of nitrogen on the proprieties of steel are well known, the introduction of this element in high amounts is not tr
Publicado em: 2001
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7. Propriedades, microestruturas e mecanismos de nucleação de trincas por fadiga de dois aços inoxidaveis austeniticos utilizados como biomateriais
The ASTM F 138 stainless steel is current1y the most used material to produce orthopedic implants and a considerable nurnber of failure of temporary or perrnanent orthopedic implants occurs. Since some years the austenitic ISO 5832-9 stainless steel is also being used in implants fabrication as a replacement to the ASTM F 138 without a consistent research of
Publicado em: 2001