نتایج جستجو برای: hadfield steels
تعداد نتایج: 12837 فیلتر نتایج به سال:
SF6 tracer experiment in unperturbed low iron waters P. W. Boyd, C. S. Law, D. A. Hutchins, E. R. Abraham, P. L. Croot, M. Ellwood, R. D. Frew, M. Hadfield, J. Hall, S. Handy, C. Hare, J. Higgins, P. Hill, K. A. Hunter, K. LeBlanc, M. T. Maldonado, R. M. McKay, C. Mioni, M. Oliver, S. Pickmere, M. Pinkerton, K. Safi, S. Sander, S. A. Sanudo-Wilhelmy, M. Smith, R. Strzepek, A. Tovar-Sanchez, and...
The goal of the present research is to achieve a basic understanding of corrosion of steels by Lead Bismuth Eutectic (LBE). Liquid LBE is under consideration in the transmuter as both a coolant and a target material. There have been studies of LBE, especially by the Russians, but a fundamental understanding and verification of its role in the corrosion of steels is still very
modern vehicle bodies make intensive use of high strength steel grades to meet the contradicting demand of lighter weight and simultaneously better mechanical performance. for many steel grades microalloying by niobium is the key to achieve their characteristic property profile. in hsla steels niobium enhances the strength primarily by grain refinement. in interstitial free high strength steels...
Micro-alloyed High Strength Low Alloy steels (HSLA-steels) are widely used in civil construction, automobile and line pipe applications. They contain small quantities of alloying elements between 0,01 – 0,1 wt%, such as Niobium, Titanium, Vanadium, Aluminium and Nitrogen. These steels rely on thermo-mechanical rolling, a technique that simultaneously provides high strength, excellent toughness ...
The critical role of manganese sulphide (MnS) inclusions for the initiation of the short-term growth of pitting or localized corrosion of low carbon steels has long been recognized. Classical results show that pitting probability and pitting severity increases with increased sulphide concentration for low carbon steels as a result of magnesium sulphides acting as local cathodes for initiating p...
30 Stainlßss Steßl Focus 01/2016 Acciaierie Valbruna has come a very long way since its founding in 1925 as a small company specialising in forged equipment for use in agriculture, and after experiencing total devastation from allied bombing during the second world war. Following a rebuild and enlargement of the company’s works in the immediate postwar period, at the end of the 1950s there was ...
Thermodynamic analysis and computations of the equilibrium solution for the multivariable secondary phase in steels have been conducted, based on the chemical equilibrium. Solid solution precipitation in the Ti–N–C microalloy steel for the secondary phase was analyzed, and its engineering application in the development of carburizing gear steels was investigated. The complete dissolution temper...
The goal of this project was to develop low-firing thick-film materials systems for the fabrication of piezoresistive sensors on special steels, for the fabrication of instrumented medical devices. To this end, a series of individual thick-film materials and complete systems, based on lead borosilicate glasses, were developed and extensively characterised. These studies allowed us to formulate ...
The martensite steels produced by quenching and tempering has been used for machine structural use. Martensite in ferrite-martensite dual-phase steels (hereinafter, DP steels) also has important roll in strengthening of the automobile steel sheets. Therefore the importance of analyzing the microstructure and their mechanical properties of the martensite has been increased year by year. Many res...
The decomposition of austenite to ferrite or cementite begins at the equilibrium phase boundary of austenite/ (ferrite austenite) or austenite/(cementite austenite) in binary Fe–C phase diagram. The temperature values on the phase boundaries of austenite/(ferrite austenite) and austenite/(cementite austenite) at a certain carbon content are called Ae3 and Acm temperatures of the steel, respecti...
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