Des métaux stratégiques pour la transition énergétique (FR)

La forte croissance de la production mondiale d’électricité par des filières renouvelables ainsi que celle de la mobilité électrique vont accroître la demande de certains métaux indispensables à la construction des infrastructures. Contrairement au fer et à l’aluminium, bon nombre d’entre eux se trouvent à faible concentration dans des minerais ; leur extraction et leur métallurgie sont donc coûteuses et leur production limitée. La relative rareté de ces métaux en a fait un enjeu stratégique, en particulier depuis que la Chine a acquis un quasi-monopole de la production des métaux de la famille des terres rares(elle avait mis en place des quotas pour ses exportations, qu’elle a supprimés en 2015). Qui plus est, en 2017, le prix de terres rares comme le néodyme a bondi de 80 %. Plusieurs pays dont les États-Unis, le Japon puis la France, se sont inquiétés de leurs approvisionnements en matériaux qui jouent un rôle clef dans plusieurs secteurs deContinue reading

New way found to enhance strength and ductility of high entropy alloys (US)

A joint team of researchers from India, Japan and Sweden have found a way to make multiphase high entropy alloys (HEAs), which are a recently emerging class of alloys, simultaneously stronger and more ductile. In a study published in journal, Scientific Reports, the researchers have reported that novel heterogeneous microstructure achieved by a process of cryo-deformation followed by annealing can help overcome the problem of strength-ductility trade-off in multiphase HEAs. The researchers are from Indian Institute of Technology, Hyderabad, Kyoto University, Japan and Chalmers University, Sweden. Conventionally, alloys are based on one major element to which Continue reading

Les Etats-Unis relancent la course au lithium (FR)

Le chimiste Reginald Penner de l’UCI (l’université de Californie à Ivirne) et la candidate au doctorat Mya Le Thai (en photo) ont développé une technologie à base de nanofils permettant la recharge de batteries de lithium de centaines de milliers de fois. (Credit Photo@Steve Zylius/UCI)

Parce qu’il entre dans la composition des batteries des véhicules électriques, le lithium vient d’être inscrit sur la liste des métaux stratégiques par les Etats-Unis. Les projets d’exploitation du lithium se multiplient sur le sol américain. Les Etats-Unis relancent la course au lithium jusque sur leur propre sol. Ils n’avaient plus qu’une seule mine de lithium encore en activité, dans le Nevada, c’est d’ailleurs la Continue reading

Team Uses Severe Deformation Method on Bulk Magnetic Alloys for High Performance (US)

In a collaborative study involving Equal Channel Angular Extrusion (ECAE), a unique severe plastic deformation (SPD) process, researchers Dr. Ibrahim Karaman from Texas A&M University and Drs. Don Susan and Andrew Kustas of Sandia National Laboratories were able to improve the mechanical properties of magnetic alloys without changing their magnetic properties through microstructural refinement. This process has proven to be troublesome in the past. Production of high-performance magnetic alloys and other intermetallics could prove particularly useful in aerospace and space exploration where materials must endure harsh environmentsContinue reading

Australian Mines Partners with Metalysis in Aluminum-Scandium Alloys (US)

Metals explorer Australian Mines (ASX: AUZ) has said it wants to maximise revenue and shareholder value at its flagship Sconi project in Queensland by developing the “next-generation” of scandium alloys that could command higher revenue margins and serve as better final products for end-users. Earlier this year, Australia Mines secured an offtake agreement with SK Innovation for 100% of its anticipated cobalt and nickel production for seven years from its flagship wholly-owned Sconi cobalt, nickel and scandium project in Queensland. A global lithium-ion battery manufacturer for the electric vehicle market, SK Innovation will purchase 100% of Sconi’s nickel and cobaltContinue reading

Lockheed Martin invests in metal powder atomization (US)

OTTAWA, May 31, 2018 /CNW Telbec/ – Equispheres has received a $5 million USD investment from Lockheed Martin (NYSE: LMT) under the Industrial Regional Benefits (IRB) and Industrial Technological Benefits (ITB) Policy. This investment enables Equispheres, an Ottawa-based materials science company, to accelerate its growth in the provision of high-quality materials required for advanced technologies such as additive manufacturing, 3D printing and cold spray deposition. Each of these technologies requires a unique Continue reading

Italian manufacturer with CT ties inks 10-yr Pratt contract (US)

An Italian manufacturer, which houses a facility in Farmington, will supply airfoil products for commercial and military engines to East Hartford aeroparts manufacturer Pratt & Whitney over the next decade, the company announced Monday. Pietro Rosa TBM, which makes parts and components for gas-turbine engines, said it signed a 10-year agreement with Pratt & Whitney, a division of Farmington conglomerate United Technologies Corp., to support its F135, PW2000 and geared turbofan (GTF) engines. Peitro Rosa said the long-term agreement could extend to its facilities throughout the U.S. and Europe. The companies said the agreement allows Pietro Rosa to Continue reading

Cefival et Ruspolymet s’allient dans les anneaux réacteurs (Fr)

Cefival, filiale française de Siderval, et la société russe Ruspolymet allient leurs savoir-faire pour la vente de matière et d’anneaux de réacteur.

Le français Cefival et le russe Ruspolymet ont décidé de mettre en commun leurs savoir-faire respectifs pour coopérer dans la vente de matière et d’anneaux de réacteur. Un accord de partenariat exclusif. Inventeur du procédé de filage de l’acier, Cefival, filiale de Siderval, elle-même filiale du groupe Calvi, a développé un procédé de fabrication baptisé “near net shape”. Une technologie dont Ruspolymet vaContinue reading

Japan’s Sumitomo acquires Sweden’s Ovako (US)

Japan’s Nippon Steel & Sumitomo Metal Corporation said Monday that it completed the acquisition of Sweden’s Ovako Group on June 1, which will boost its special steel business and secure production and sales bases in Europe. “Demand of special steel is expected to grow further with firm demand from the automotive, industry machinery and wind power generation [sectors], so strengthening the special steel business [will] keep stable supply to customers,” a NSSMC spokeswoman said Tuesday. Ovako will continue to drive its business Continue reading

CTC to develop additive technologies for the Defense Industry (US)

JOHNSTOWN, Pa. Concurrent Technologies Corporation (CTC) has won two subaward contracts — worth a total of $1 million — from Northeastern University, supporting the Army Research Laboratory, in the area of shelters and military structures.

The first subaward, which will run over a 12-month period of performance, calls for research and development of innovations in energy efficiency, ballistic engineering, and advanced decontaminable and low-observable coatings. Under the terms of the subaward, CTC, Northeastern University, and several other universities will focused on engineered materials, materials by design, modeling of additive

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