A Study of 〈v2〉 with NeXSPheRIO R. P. G. Andrade∗, Y. Hama∗, F. Grassi∗, O. Socolowski Jr.†, and T. Kodama‡ ∗Instituto de Fı́sica, Universidade de São Paulo, C.P. 66318, 05315-970, São Paulo-SP, Brazil †CTA/ITA, Praça Marechal Eduardo Gomes 50, CEP 12228-900, São José dos Campos-SP, Brazil ‡Instituto de Fı́sica, Universidade Federal do Rio de Janeiro, C.P. 68528, 21945-970, Rio de Janeiro-RJ, Brazil

PURPOSE The porcelain fused to gold has been widely used as a restoration both with the natural esthetics of the porcelain and durability and marginal fit of metal casting. However, recently, due to the continuous rise in the price of gold, an interest towards materials to replace gold alloy is getting higher. This study compared the bond strength of porcelain to millingable palladium-silver (P...

A study was carried out on the aging behaviour of a solution treated 6082 aluminium alloy deformed by equal channel angular pressing up to six passes. Aging of the so obtained ultrafine alloy was studied by DSC and TEM analyses as well as by isothermal treatments at 130, 160 and 180 C. The results showed that the formation of metastable 00 and 0 precipitates were markedly anticipated and that t...

Rapid solidification by planar flow casting has been found to have introduced deficiencies, viz. partial crystallinity, air pockets and compositional difference in the ribbons of rapidly solidified Ti42⋅9Cu57⋅1 alloy. In order to investigate the effects of these deficiencies on the corrosion of rapidly solidified Ti42⋅9Cu57⋅1 alloy ribbons, electrochemical behaviour of alloy ribbons has been in...

Alloy is a specification language based on a relational firstorder logic with built-in operators for transitive closure, set cardinality, and integer arithmetic. The Alloy Analyzer checks Alloy specifications automatically with respect to bounded domains. Thus, while suitable for finding counterexamples, it cannot, in general, provide correctness proofs. This paper presents Kelloy, a tool for v...

This paper aims to compare the tribo-mechanical properties and structure–property relationships of a wear resistant cobalt-based alloy produced via two different manufacturing routes, namely sand casting and powder consolidation by hot isostatic pressing (HIPing). The alloy had a nominal wt % composition of Co–33Cr–17.5W–2.5C, which is similar to the composition of commercially available Stelli...

The process of preparing SiC fiber-reinforced γ-TiAl composites by the conventional methods is difficult and complicated due to high reactivity, melting point poor deformability alloys. In this work, suction casting, a promising method for SiCf/TiAl composite, had been attempted. process, alloy melt was introduced rapidly into mold within pre-arranged fibers that were coated with additional lay...

In this study, the effects of aging times and temperatures on microstructure, hardness compression strength Al0.7CoCrFeNi high entropy alloy have been investigated. The was cast in a vacuum induction melting furnace, homogenized at 1250 ˚C for 6 h; then aged 700 to 1000˚C 2-8 h. as-cast structure is dendritic includes FCC(A1) BCC(A2, B2) phases with 497 HV. During ageing, B2 precipitates grain ...

Fe-Cr-Al alloy nanopowders were successfully prepared by electrical wire explosion method in ethyl alcohol media. The formation of FeCr-Al alloy nanopowder was monitored by X-ray diffraction. The alloy powders have spherical shape and nanometer size. The alloy powders prepared by the electrical wire explosion method have main crystal structures of bcc Fe-Cr alloy. The geometric mean diameter an...