Orthodontic stainless-steel appliances are considered to be corrosion resistant, but localized corrosion can occur in the oral cavity. This study was undertaken to evaluate the properties of super stainless steels in orthodontic applications. Accordingly, the metallurgical properties, mechanical properties, corrosion resistance, amount of the released nickel, cytotoxicity, and characteristics o...

The very thin native oxide film on stainless steel, of the order of 2 nm, is known to be readily modified by immersion in aqueous media. In this paper, XPS and ToF-SIMS are employed to investigate the nature of the air-formed film and modification after water emmersion. The film is described in terms of oxide, hydroxide and water content. The preferential dissolution of iron is shown to occur o...

AISI 430 ferritic stainless steel is a promising candidate for utilising as interconnects of solid oxide fuel cells due to its cost effectiveness and durability. Many methods applying coating on substrates have been developed in order decrease the degradation oxidation rate chromium volatile problems. Manganese-cobalt spinel exhibits high conductivity, thermal expansion compatible with steels, ...

This paper presents a numerical study on structural behaviour of cold-formed stainless steel channels with circular web holes, under interior-one-flange loading case. The material properties types EN 1.4509 (Ferritic), 1.4462 (Duplex) and 1.4301 (Austenitic) were taken from the literature. In order to influence hole size, location load-bearing length crippling strength such sections, parametric...

There have been considerable efforts to create welding consumables which on solid state phase transformation partly compensate for the stresses which develop when a constrained weld cools to ambient temperatures. All of these efforts have focused on structural steels which are ferritic. In the present work, alloy design methods have been used to create a stainless steel welding consumable which...

The present research investigates the influence of surface roughness imparted by cold finishing processes on localized corrosion resistance stainless steel. Five different alloys were studied: ferritic AISI 430, martensitic 430F, austenitic 303, 304L, and 316L. It was demonstrated that grinding process, executed previously drawn bars, leads to an improvement in according results obtained with e...

Abstract In the present study, gas tungsten arc welding was employed to weld Ti-stabilized 439 ferritic stainless steel using 308L austenitic filler electrode with varying heat input, i.e., low input (LHI) and high (HHI). The optical microstructure revealed formation of retained austenite (RA) ferrite in zone (WZ), whereas peppery structure consisting chromium-rich carbides were observed heat-a...

Poros turbin merupakan komponen yang mentransformasikan energi kinetik uap menjadi mekanis, dan mentransmisikan daya atau torsi ke poros generator. didesain untuk mampu menerima beban-beban saat beroperasi pada fluktuasi siklus tertentu. Material digunakan adalah stainless steel karena bekerja kondisi lingkungan korosif. Tujuan penelitian ini membuat pemodelan melakukan optimasi desain generato...