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Case studies

Supercritical and Ultra-supercritical Power Plants
Supercritical and Ultra-supercritical Power Plants
Coal-fired power plants emit more CO2 per kWh than any other form of generation. This study looks at how molybdenum-containing steels and superalloys are used in modern coal-fired plants to increase high temperature strength and resistance to chlorine-containing flue gases.  These properties enable supercritical and new ultra-supercritical power plants to be run at higher temperatures, increasing thermal efficiency and delivering significant reductions in CO2 emissions.

Articles

Tooling around with moly
07/02/2017
Metalworking tools must survive high temperatures, extreme stresses, friction and wear, and still economically produce precision parts from difficult-to-process alloys. In some applications, traditional steel and nickel- alloy tools cannot do the job. Molybdenum metal alloys like TZM and MHC solve this problem, saving material and processing costs, and enabling new and better technologies.
Safer rock climbing
07/02/2017
Climbing a vertical wall, finding the next crack or jut in the rock face, pushing higher with nothing but the body’s strength, are part of the thrill of rock climbing. However, without the aid of safety anchors to catch the climber in the event of a mishap, the sport could be deadly. Both experience and study indicate that molybdenum-alloyed stainless steel anchors play an increasingly important role to protect climbers’ lives.
Low sulfur on the high seas
07/02/2017
Maritime shipping remains one of the most cost-efficient global transport methods, especially compared with air freight. Its rapid growth since the 1970s and the containerisation of cargo have kept pace with the global economy, however this has also increased its environmental impact. New regulations limiting the sulfur content of engine fuel mean that ships must either use cleaner, more expensive fuel, or install equipment to take sulfur out of exhaust gases, a process in which molybdenum plays a key role.
Guide to high-performance alloys
20/09/2016
It can be difficult and time consuming for engineers to find materials properties beyond the basic ones reported in producer data sheets. This is especially true for lesser-used high-performance alloys. The new High-Performance Alloys Database addresses this problem. It contains a large number of materials properties for each of the 100 or so featured alloys, many involving molybdenum.
Molypermalloy sends clear signals
20/09/2016
One of the most important innovations in communications history occurred when telegraph cable designers incorporated loops of wire wound around iron cores into their cables. This “simple” innovation evolved into inductors wound around Molypermalloy Powder cores, which are omnipresent in electronic devices on earth and in space.
Wearing moly gets trendy
20/09/2016
In pockets, on noses, wrists and ears, even at the end of a dog lead, molybdenum-containing alloys are part of modern life. This article describes their use in objects designed to entertain, connect, inform, alert, identify, or simply make us stand out!
A breath of fresh air
21/09/2015
Clean air is a basic human need for a healthy life. Yet, advances in living standards (electricity on demand, automobiles, and consumer goods) contribute to air pollution in manufacturing, energy production, and the use of products. As scientists began to understand the connections between air pollution and industrialization, engineers developed technologies to minimize the damage. Molybdenum plays a central role in many of them.
Wireline for downhole tools
26/08/2014
Wireline is cable used to lower oil- and gas-well tools and measuring equipment downhole. Wireline must be strong, dependable and resistant to the increasingly corrosive conditions encountered in today’s deeper wells. Molybdenum imparts the required corrosion resistance to the stainless steel and nickel alloys used in this application.
3D printing – future of manufacturing?
26/08/2014
Many of the best tool steels require molybdenum to increase hardenability and toughness, and to form hard, wear-resistant carbides in the matrix. These attributes make molybdenum-containing tool steels the industry standard.
Molybdenum scrap saves resources
15/08/2013
A recent study found that about one quarter of the molybdenum used each year is recycled material from scrap sources. The rest is newly mined, primary molybdenum. Scrap therefore plays an important role in meeting demand and contributing to sustainability.