Influence of the surface finish on corrosion resistance of stainless steels through machining and remelting on weld bead

Abstract

The TIG Dressing technique has been widely used for repairing cracks in welded structures when subjected to mechanical forces that induce localized fatigue, leading to the collapse during operation. However, this technique has not been used for studies in structures susceptible to corrosion. In addition to changing the microstructure, it is expected that this technique increases the corrosion resistance of the edge of the weld bead which is a vulnerable region to corrosion. Moreover, the machining technique has been widely used to improve the workpieces finishing and/or structures that have been subjected to repair by welding, improving the surface roughness, increasing the corrosion resistance of these structures when subjected to aggressive environments. Thus, this work will study the effects of finishing techniques using machining and welding on the edge of the weld bead joints of 410D ferritic stainless steels, making an evaluation by mass loss in the samples which will be subjected to corrosion by immersion in NaCl containing medium. It is expected that the finishing techniques can relieve tensile stresses increasing the corrosion resistance.

Computer Modeling of Inhomogeneous Media Using the Abaqus Software Package

“…Over the past twenty years, computer and information technologies have formulated scientific and technological progress and created the Information Foundation for the development of science [1,2,3]. The use of modern software in the study of scientific and engineering problems allowed us to gain a dominant position using the finite element method (FEM) [4,5,6]. A successful alternative to it now consists of methods of Limit Integral Equations (LIE) [7,8,9].…”

Technological Process of Manufacturing a Gear Wheel Using the Abaqus Software Product Method

“…Computer and information technologies of our time formulate the scientific and technological progress of mankind and create in general the information foundation for the development of science [1,2,3]. It should be noted that obtaining long-lasting indicators of quality [4,5] and strength [6,7] with their unique properties is possible with the help of new research technologies [8,9,10], which are based on improving accuracy, load capacity, as well as reducing the mass of parts [11,12]. It should also be noted that the analysis of the main quality indicators of the studied parts will further improve and predict, first of all, these indicators [13,14], as well as make it possible to improve the efficiency of the mechanism itself, reduce noise and vibration, as well as increase the durability of the part structure as a whole [15].…”