Titane et Zircon : Eramet se renforce avec son partenaire australien MDL (US)

Le groupe minier et métallurgique français Eramet améliore ses positions dans les matières premières. Il a pris le contrôle de son partenaire australien MDL. Les sables riches en titane et en zircon sont exploités à Grande Côte au Sénégal, puis transformés en Norvège. 

Le conseil d’administration du groupe australien MDL a fini par recommander à ses actionnaires l’offre de rachat revalorisée. “L’opération, réalisée intégralement en numéraire au prix de 1,75 dollar australien par action, valorise les capitaux propres de MDL à environ 350 millions de dollars australiens, soit environ 220 millions d’euros”, a précisé Eramet. La banque australienne Macquarie, acteur majeur du secteur des matières premières a participé à l’opération.

“Nous sommes très heureux d’annoncer la prise de contrôle de MDL. Pour Eramet, il s’agit d’un mouvement logique, en ligne avec sa stratégie, qui permet de consolider Tizir au sein de son portefeuille au moment où le groupe renoue avec des projets de développement”, a réagi Christel Bories, PDG d’Eramet. “En prenant le contrôle le Tizir, nous nous donnons les moyens de poursuivre efficacement son développement au sein du secteur prometteur des sables minéralisés.”

Tizir, la coentreprise d’Eramet et de MDL, avait été créée en 2011 pour exploiter les sables minéralisés riches Continue reading

Constellium Debuts New R&D Capabilities At Brunel University (US)

Amsterdam rolled and extruded aluminium leader Constellium N.V. revealed yesterday the opening of an expansion to the University Technology Center (UTC) at London’s Brunel University as well as the debut of a new on-campus research and development center, the Advanced Metals Processing Centre (AMPC). Per Constellium, the AMPC’s newest capabilities include freeform 3D bending, electromagnetic pulse forming, and sawing. In addition, the UTC now boasts new joining techniques such as welding, flow drill screw and self-piercing rivets. The new additions are the latest step in the evolution of the UTC, which is a joint effort between Constellium and Brunel University to accelerate the pace of aluminium alloy development and usage in the automotive industry. Initially tasked withContinue reading

China’s top steelmaking city set to deepen output curbs over summer (US)

BEIJING (Reuters) – The top Chinese steelmaking city of Tangshan has ordered steel mills, coke producers and utilities to cut output further this summer, according to a document from the city government, the latest step to curb smog in one of the country’s most polluted areas. The move to deepen cuts in emissions will last for six weeks from July 20 until Aug. 31, according to the document, which was reviewed by Reuters. That will be in addition to 10-15 percent capacity cuts imposed from March to November. The document did not instruct factories to cut output by aContinue reading

Lockheed Martin Prints Titanium Satellite Fuel Tank (US)

The new fuel tank for Lockheed Martin’s largest satellites host 3-D printed domes that cap off the cylinder. Using this manufacturing method, tank delivery time went down from two years to three months. Here the tank is seen in a test fixture, with a 3-D printed dome seamlessly integrated into the body of the tank.

July 11, 2018 /PRNewswire/ — Lockheed Martin (NYSE: LMT) has embraced a 3-D printed titanium dome for satellite fuel tanks so big you can’t even put your arms around it. The 46-inch- (1.16-meter-) diameter vessel completed final rounds of quality testing this month, ending a multi-year development program to create giant, high-pressure tanks that carry fuel on board satellites. The titanium tank consists of three parts welded together: two 3-D printed domes that serve as caps, plus a variable-length, traditionally-manufactured titaniumcylinder that forms theContinue reading

Microstructural changes tracked in real time during Alloy 709 thermomechanical tests (US)

Microstructural changes in a promising material for nuclear reactors can be tracked in real time during thermomechanical tests, thanks to a new microscopy technique. Afsaneh Rabiei is pictured here with the device she developed that can capture scanning electron microscopy (SEM) images in real time at temperatures up to 1,000 degrees Celsius while applying stresses as high as two gigapascal.

A new microscopy technique allows researchers to track microstructural changes in real time, even when a material is exposed to extreme heat and stress. Recently, researchers show that a stainless steel alloy called alloy 709 has potential for elevated temperature applications such as nuclear reactor structures. “Alloy 709 is exceptionally strong and resistant to damage when exposed to high temperatures for long periods of time,” says Afsaneh Rabiei, corresponding author of a paper on the new findings and a professor of mechanical and aerospace engineering atContinue reading

It’s no vibranium or proto-adamantium, but researcher’s new alloy comes close (US)

Four times stronger than stainless steel, a unique alloy blends chromium, cobalt, iron, manganese and silicon.  It’s not Black Panther’s vibranium or Captain America’s proto-adamantium shield, but a new alloy designed by University of North Texas researcher has come pretty close. Researcher  Saurabh Nene has been working with UNT’s College of Engineering Department of Materials Science and Engineering to mix and flow material simultaneously, giving the alloy new strength. The alloy, which has no catchy name like its fictional counterparts, is created by melting and casting the materials, then taking the thin, flat mold to start “friction stirring,” Nene said.  Nene, who has been working on this piece of research for eight months, said the process intensely deforms the metal’s makeupContinue reading

Creating superior alloys (US)

Nooshin Mortazavi is a postdoctoral researcher in the department of physics at Chalmers University of Technology, Sweden. She was recently offered prestigious funding from the Swedish Research Council, the Wenner-Gren Foundation and the Wallenberg Foundation. She can now choose between two or three years of postdoctoral training at Harvard or Stanford University in the US – followed by two more years at Chalmers University of Technology after her return.

 Groundbreaking findings of a study conducted at the Chalmers University of Technology, Sweden, contributes to a better fundamental understanding of how alloys behave at high temperatures, whichcould help researchers to develop improved materials and advancedContinue reading

Additive Manufacturing for the Defense Industry (US)

Additive Manufacturing Handbook focuses on product design for the defense industry, which affects virtually every other industry. Thus, the handbook provides a wide range of benefits to all segments of business, industry, and government. Manufacturing has undergone a major advancement and technology shift in recent years.

Dr. Adedeji B. Badiru is a professor of systems engineering at the Air Force Institute of Technology (AFIT), Wright-Patterson Air Force Base, Ohio. He is a registered professional engineer (PE). He is a fellow of the Institute of Industrial & Systems Engineers and a fellow of the Nigerian Academy of Engineering. He is also a certified project management professional (PMP). He is PhD in industrial engineering Continue reading

Russia Next Generation Attack Submarine will use Titanium (US)

The submarine’s noise absorbing rubberized coating will be replaced with a multiple layer of composite materials. Made from those will be hulk coatings, nose and aft rudders, stabilizers, superstructure enclosure, propellers, and shaft lines. The use of titanium alloys is also very likely, testifying to which is the possible diving depth of the submarine (up to 1 km) and its service life.

On May 22, 2018, Aleksey Rakhmanov, the head of the USC, said in an interview to Izvestia about completion of the conceptual stage in designing the fifth-generation submarine. For obvious reasons the military does not reveal details, but by now sufficient information is already available for defining the boat’s general concept. First off, it will be built based on the modular system. The Russian Navy will get a basic underwater platform with a nuclear reactor and a propulsive system, defense equipment and command post. Provisions are made in the central part of the boat for placing various modules.  Depending on filling with them, the boat can be converted to a strategic missileContinue reading

Army researchers develop novel nanogalvanic alloys for on-demand hydrogen generation (US)

Army researchers have developed a novel, structurally-stable, aluminum-based nanogalvanic alloy powder that, when combined with water or any water-based liquid, reacts to produce on-demand hydrogen for power generation at room temperature without chemicals, catalysts or externally supplied power. These patent-pending powders produce hydrogen at a rate that currently is one of the fastest reported for Al and water reactions without the need of hazardous and costly materials or additional processes. The reaction results in the production of hydrogen and heat with only inert residual materials; i.e., no toxic by-products. ARL has demonstrated that hydrolysis will occur with virtually any water containing liquid. It has long been known that aluminum (Al) reacts with water to produce hydrogen gas and aluminum oxide via a hydrolysisContinue reading