Heather Allain, Executive Director, Materials Technology Institute (MTI), tells us about her passion for materials and the importance of MTI’s work to provide awareness of safe, reliable and sustainable materials use.
Materials selection for any piece of equipment or a process system is rarely a simple task, unless you are exactly replicating something successful. Often engineers will have a checklist to help them narrow down the choices, eliminating groups of materials that are not suitable for various reasons. Austenitic 300 series stainless steels containing 7-35% nickel will have most if not all of the boxes checked for being suitable where a stainless steel is desired.
Each family of stainless steels has its strengths and weaknesses. Ferritic stainless steels have useful properties – a lower rate of thermal expansion, higher thermal conductivity, strong ferromagnetism and very high resistance to chloride stress corrosion cracking (SCC). When looking at selecting any alloys, it is important to consider all the factors for successful usage.
The duplex alloys are “problem-solving alloys” for good reason, they have been successfully used in many places where carbon steels and standard austenitic alloys have failed. Just like with the austenitic family, there are many different duplex alloys to choose from, with corrosion resistance varying from moderate with the lean duplex alloys to very high with the superduplex alloys.
The selection of an alloy should be guided by careful examination of the needs of the application. Before making a switch, it’s important to fully investigate an alloy’s strengths, weaknesses and applicability to your structure.
The proposed Regulation will introduce a wide range of sustainability requirements and promote the recycling of key battery raw materials like nickel. EU legislative work is entering a crucial phase.
Think of the largest cruise ship. Then imagine how much it weighs – just over 100,000 tonnes, in fact. Now think about 500 of those ships, and what they weigh. That is the staggering amount of new electronic waste that we generate every year.
Even small quantities of nickel in an application can make a big difference to successful deployment.
“There’s a mental hurdle to get over of how inherently gross this could be, but we know that this water is safe, and we stand by our process.”
The upstream and midstream oil and gas industries rely on nickel-containing corrosion resistant alloys for flowlines and risers. Rodrigo Signorelli, Outokumpu’s lead technical manager for marine and energy, explains how alloys reach the market.
The many new and innovative applications of hydrogen as fuel show great promise for a greener future.
As electric vehicles (EVs) trend from being niche to mass scale and the lines between EVs and their combustion engine (ICE) counterparts get blurred in terms of usability, consumers, automakers, governments and fire departments continue to have some apprehensions.
The last three months have been unprecedented. But amidst the chaos and despite the drop in global GDP, there has still been a considerable amount of activity in the electric vehicle (EV) and battery world.
New energy legislation is set to optimize China’s energy structure and boost the use of non-fossil energy. Aligning with China’s regulatory agenda, nickel will play a vital role in tomorrow’s world powered by cleaner energy.
Ever-tightening sulphur oxide (SOx) emission regulations are increasing the use of marine scrubbers globally. Scrubbers operate in a highly corrosive environment and require the resilience of nickel-containing alloys to prevent failure.
The electric vehicle market is expected to be by far the largest and most dominant market for lithium-ion (Li-ion) batteries. Despite the strong desire to increase EV sales by all involved in the value chain, proliferation has been curbed due to the high cost to the consumer and the perceived disadvantages of owning an EV. Range anxiety, a lack of charging stations and fire safety worries, are among the top concerns.
Most nickel production is destined for stainless steel. But a significant 8% is used in the production of alloy steels which are needed to deliver specific characteristics for specialised and often critical applications.