Conveners
SUSTAINABLE PERFORMANCE WITH MO ALLOYED STEELS
- C. Matthew Enloe (Steel Dynamics)
SUSTAINABLE PERFORMANCE WITH MO ALLOYED STEELS
- Charles Stallybrass (Salzgitter Mannesmann Forschung GmbH)
Diluted molybdenum presents two facets for friction reduction:
-as molybdenum compounds in oils and greases and
-as alloying element in tribo-materials.
Treat rates effective for friction reductions by alloying or blending molybdenum range for both cases between 0.3-0.6 wt.-% and reduce friction between 30% to 50% under the regime of mixed/boundary lubrication as well as illuminate an...
More durable materials are constantly required to increase the efficiency and lifespan of different applications with main focus being on the reduction of emissions. Steels are the most used engineering materials due to the excellent combination of mechanical properties, usability, and low cost. In addition, there are many applications where steels are the only viable material choice, such as...
Nowadays, carbon capture, transport, and underground storage (CCUS) rises like one of the technologies for mitigating climate change and meeting one of the most challenging targets of the Paris agreement: 14% of the total CO2 emissions reductions by 2060 must come from CCUS. Moreover, in the Net Zero Emissions (NZE) scenario, it is called a CO2 storage capacity objective of 1200 Mt of CO2 per...
Quenching and Partitioning (Q&P) steels have seen substantial development and implementation in a variety of product groups. The microstructure of these steels consists of a martensitic matrix with film like retained austenite and is obtained by quenching from the austenitic phase field or from the intercritical region to a temperature intermediate between the martensite start and finish...
In the half-century since the high-molybdenum concept first provided a quantum leap in SSC resistance, low-alloy steels with 0.75% Mo (and 0.035% Nb) have become firmly established worldwide as the premier tubular product for assuring reliable service in deep sour oil/gas wells. In arriving at this alloy chemistry, molybdenum concentrations up to 2.5% were examined and SSC test results are...
Wastewater originating from industrial production and human life is usually polluted by refractory organic molecules, heavy metal ions, and bacteria that are difficult to be removed by ordinary wastewater treatment plants. Efficient methods for removing these pollutants rely on advanced oxidation processes. The acting reactive oxygen species (ROS) need to be added or are in-situ generated by...
The addition of molybdenum as an alloying element is critical for optimizing the performance of special steels in various demanding applications, including tooling, plastic molding, armor, abrasion resistance, pressure vessels and offshore industries. Molybdenum is commonly added to special steels to improve their strength, hardness, toughness, and wear resistance. In this presentation, we...
The processing and refining of minerals need molybdenum alloyed stainless steels. In hydrometallurgical processes of primary or secondary resources of e.g.,lithium, nickel, cobalt, copper and manganese involves typically highly corrosive conditions due to the use of reagents such as sulphuric acid, chlorides, and in some cases high temperatures and pressures, so the optimum selection of...
The article deals with the recycling of materials containing molybdenum and is intended to illustrate how the product cycle can be closed.
According to the 2023 study ‘The Global Life Cycle of Stainless Steels’ , 95% of all EOL products made of alloyed steels are collected and made available to steelworks and foundries.
Another study, the ‘Scrap bonus’ study by the Fraunhofer IMWS from 2018...
