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An overview of the microstructures present in high-speed steel - Carbides crystallography
(2006-12-01)
The aim of the work was to prepare an overview about the microstructures present in high-speed steel, focused on the crystallography of the carbides. High-speed steels are currently obtained by casting, powder metallurgy ...
Determination of the volume fraction of retained austenite in a 300m steel by heat tinting technique
(2007-12-01)
Applying the Heat Tinting Technique the microestrutural characterization of a 300M steel (medium carbon steel) was accomplished. The steel was austenitized for 20 min to 900°C, followed by holding at 400°C (in the bainitic ...
Steel bars identification in reinforced concrete structures by using ANN and magnetic fields
(2005-12-01)
This work proposes a methodology for non destructive testing (NDT) of reinforced concrete structures, using superficial magnetic fields and artificial neural networks, in order to identify the size and position of steel ...
A theoretical and experimental analysis of cold-formed steel shapes subjected to bending - Channel and simple lipped channel
(2000-12-01)
Cold-formed steel shapes have been widely employed in steel construction, where they frequently offer a lower cost solution than do traditional laminated shapes. A classic application of cold-formed steel shapes is purlins ...
Distortional buckling of simple lipped channel in bending results of the experimental analysis versus direct strength methods
(2006-12-01)
Cold-formed steel members are subject to failure caused by buckling, normally under loads smaller than those corresponding to partial or total yielding of the cross section. The buckling of members in bending can be ...
Fire Resistance of Axially Loaded Slender Concrete Filled Steel Tubular Columns
(Destech Publications, Inc, 2010-01-01)
The concrete filled steel tube (CFST) column is a composite member that consists of a steel tube filled with concrete. Concrete inside the steel tube enhances the stability of the steel tube, and the steel tube in turn ...
Fire resistance of axially loaded slender concrete filled steel tubular columns
(2010-01-01)
The concrete filled steel tube (CFST) column is a composite member that consists of a steel tube filled with concrete. Concrete inside the steel tube enhances the stability of the steel tube, and the steel tube in turn ...
Fatigue Behavior of Weld Repaired AISI 4130 Aeronautic Steel Used in Critical Flight Safety Structures
(Trans Tech Publications Ltd, 2014-01-01)
Since the 1950s, fatigue is the most important project and operational consideration for both civil and military aircrafts. For some aircraft models the most loaded component is one that supports the motor: the Motor Cradle. ...
Comparison of Mechanical and Microstructural Characteristics in Maraging 300 Steel Welded by three Different Processes: LASER, PLASMA and TIG
(2015-01-01)
The maraging steel are considered ultra high strength due to its yield strength greater than 1400 MPa and are part of a set of advanced materials of interest for technological development, mainly for aeronautics and aerospace ...
Changing in Fatigue Life of 300 M Bainitic Steel after Laser Carburizing and Plasma Nitriding
(2018-05-25)
In this work 300M steel samples is used. This high-strength steel is used in aeronautic and aerospace industry and other structural applications. Initially the 300 M steel sample was submitted to a heat treatment to obtain ...