Conveners
MOLYBDENUM BOOSTING PROCESS EFFICIENCY
- Pello Uranga (CEIT and University of Navarra-Tecnun)
MOLYBDENUM BOOSTING PROCESS EFFICIENCY
- Emmanuel De Moor (Colorado School of Mines)
Molybdenum is an essential alloying element in special and stainless steels as it for instance improves the corrosion resistance of stainless steels and increases the wear resistance of tool steels. Yet, molybdenum has also been established as the preferred alloying element in engineering steels, since it generally increases the hardenability as well as the toughness and tempering resistance....
For economic and environmental reasons, quenched as well as quenched and tempered steel plates are nowadays produced using direct quenching (DQ) if feasible, as one process step can be omitted compared to conventional quenching. However, the DQ process has significantly higher demands on process control. This requires precise matching of the alloy concept with the process parameters....
The investigation into the effect of molybdenum content on rolling parameters and microstructure in API 5L-X80 steel plates, produced via Thermo-Mechanical Control Process (TMCP) combined with accelerated cooling, constitutes a pivotal inquiry in steel metallurgy. Molybdenum, recognized for its potential in augmenting steel's strength and corrosion resistance, serves as the focal point in this...
Thermomechanical processing of flat rolled steel products manufactured by the compact strip process is limited by numerous physical constraints. Alloy and process designs are limited by the necessary avoidance of peritectic chemistry, relatively low equalizing furnace temperatures relative to traditional integrated mill methodologies, generally high baseline nitrogen levels, and the...
High-strength structural steels offer several attractive advantages over mild steel, such as a higher strength-to-weight ratio and a reduced carbon footprint. Molybdenum plays an important role in achieving this goal, as it markedly improves the hardenability of steel. Heat treatment during production aims to find a balance between the desired strength and toughness for a given steel...
The production and use of conventional, cold-rolled, high-strength low-alloy (HSLA) steels is well established in different markets. HSLA steels are characterized by a low-carbon alloying concept and therefore have excellent weldability. Different strength classes and good local formability enable a wide range of applications.
The global automotive steel specification VDA239-100 currently...
Molybdenum is an attractive alloy element also in sintered steels. For optimum compactibility, admixing Mo as elemental powder would be desirable; however, homogenization during sintering requires high temperatures, which results in cost penalties. In the present study it is shown that the sintering temperatures required for Mo distribution can be significantly lowered if low-melting...
Sinter hardening is an economically attractive and environmentally friendly way to improve strength and hardness of sintered steels. Because of the lower cooling rates compared to e.g. oil quenching, steel grades with improved hardenability are required. Here it is shown that sinter hardening behaviour can be attained at moderate alloy element contents when base powders prealloyed with low...
