The conclusions of an experimental program involving altered tensile strength and microstructure of stainless compressor valve steel are described. The paper presents the results of measurements of ductility, corrosion resistance, bending fatigue strength and damping. Encouraging indications have been achieved concerning the possibilities to further improve the characteristics of current materi...

This article considers the issue of wide implementation in various branches national economy caused intensive growth electric machines production. Due to high specific consumption magnetic materials production machines, a very promising direction is development waste-free technology manufacture cores and by methods powder metallurgy. The use metallurgy allows reducing losses electrical steel el...

the manufacture of such ties has grown into a major forest products industry. Today, over a billion wood ties support the 350,000 miles of railroad tracks in the United States. The success of these ties in service-particularly under the stress of World War II traffic-is a testament to the utility of wood crossties. Abstract It is generally agreed that railroads of the United States must substan...

Laser Powder Bed Fusion (LPBF) printing is used for manufacturing conformal cooling injection molds with internal channels. Currently, the steel to manufacture such by LPBF maraging 18Ni300. However, this softer at high temperatures and less resistant corrosion than reference steel, AISI H11. Moreover, 18Ni300 contains cobalt, an element that can be harmful health of people handling powders mad...

Fungi have a significant impact on the economics of paper making and the end use of paper and products employing paper related components. Paper on a practical basis is a derivative of wood, and fungi that possess cellulose-degrading enzymes can directly impact the value and utility of various types of products. Fungi further have a negative economic impact on the pulp produced during paper man...

This article focuses on the analysis of evolution inclusions present in eutectoid pearlitic steel subjected to a real cold drawing process. To this end, wires belonging different stages manufacture chain were studied, starting from an initial hot rolled bar (not drawn at all). In addition information obtained through visual inspection, quantitative microdefects generated by these was carried ou...

Abstract The need to manufacture lightweight structures from ultra-high-strength steels is forcing industry look for new joining technologies. Hybrid joints are one of the ways join materials. This paper investigates ultra-high strength steel plates using laser welding and adhesive bonding. Steel used in this was abrasion resistant (AR600) with tensile (Rm) ≥ 2 GPa. Three different epoxy adhesi...

The effect of dispersion on the structure and properties gypsum binder content mineral filler from industrial waste (15%) - crushed steel-smelting slag mass was studied. With introduction optimal amount filler, in turn, it can significantly improve macrostructure composite, increase strength stone by 20%, despite reduction consumption up to 25%. At same time, their characteristics are preserved...

The great mechanical performance of 18Ni300 maraging steel, achieved during ageing treatment by the precipitation fine intermetallic precipitates within a martensitic matrix, makes this material good choice for demanding applications such as injection moulds automotive industry. Its ease manufacture selective laser melting (SLM) allows parts with higher degree complexity and possibility customi...