GfE Metalle und Materialien GmbH

Nürnberg, Germany

GfE Metalle und Materialien GmbH

Nürnberg, Germany
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Amsterdam, Netherlands, Nov. 11, 2016 (GLOBE NEWSWIRE) -- Amsterdam, 11 November 2016 (Regulated Information) --- AMG Advanced Metallurgical Group N.V. ("AMG", EURONEXT AMSTERDAM: "AMG") is pleased to announce that AMG Titanium Alloys and Coatings ("AMG TAC") has been awarded the 2016 MTU Aero Engines AG ("MTU") Innovation Award for outstanding performance in respect of Titanium Aluminides. MTU's bi-annual Supplier Day was attended by more than 100 senior-level representatives from 65 companies and 13 nations, with awards presented across five categories: Quality, Efficiency, Cooperation, Logistics and Innovation. In presenting the award to AMG TAC, MTU stated, "MTU is proud to award a supplier who has been a reliable development partner for more than 20 years. AMG TAC (trading as GfE Metalle und Materialien GmbH), based in Nürnberg, is a leading global manufacturer of high performance metals and materials with more than one hundred years of experience and know-how in the field of material science. Since the early 1990s, AMG TAC has developed and industrialized both Titanium Aluminide based alloys and the corresponding manufacturing technologies for ingot materials and semi-finished products. AMG TAC's long expertise is highly appreciated within MTU. With a positive and well-structured approach, AMG TAC has managed to develop complex forging stock material for Titanium Aluminide airfoils for our Geared Turbofan engines." This press release contains inside information within the meaning of Article 7(1) of the EU Market Abuse Regulation. This press release contains regulated information as defined in the Dutch Financial Markets Supervision Act (Wet op het financieel toezicht). AMG is a global critical materials company at the forefront of CO reduction trends. AMG produces highly engineered specialty metals and mineral products and provides related vacuum furnace systems and services to the transportation, infrastructure, energy, and specialty metals & chemicals end markets. AMG produces aluminum master alloys and powders, titanium alloys and coatings, ferrovanadium, natural graphite, chromium metal, antimony, tantalum, niobium and silicon metal.  AMG Engineering designs and produces vacuum furnace equipment and systems used to produce and upgrade specialty metals and alloys for the transportation, automotive, infrastructure, and energy markets. With approximately 3,000 employees, AMG operates globally with production facilities in Germany, the United Kingdom, France, Czech Republic, United States, China, Mexico, Brazil and Sri Lanka, and has sales and customer service offices in Russia and Japan ( For further information, please contact: AMG Advanced Metallurgical Group N.V.         +1 610 293 5804 Steve Daniels Senior Vice President Certain statements in this press release are not historical facts and are "forward looking".  Forward looking statements include statements concerning AMG's plans, expectations, projections, objectives, targets, goals, strategies, future events, future revenues or performance, capital expenditures, financing needs, plans and intentions relating to acquisitions, AMG's competitive strengths and weaknesses, plans or goals relating to forecasted production, reserves, financial position and future operations and development, AMG's business strategy and the trends AMG anticipates in the industries and the political and legal environment in which it operates and other information that is not historical information.  When used in this press release, the words "expects," "believes," "anticipates," "plans," "may," "will," "should," and similar expressions, and the negatives thereof, are intended to identify forward looking statements.  By their very nature, forward looking statements involve inherent risks and uncertainties, both general and specific, and risks exist that the predictions, forecasts, projections and other forward looking statements will not be achieved.  These forward looking statements speak only as of the date of this press release.  AMG expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward looking statement contained herein to reflect any change in AMG's expectations with regard thereto or any change in events, conditions, or circumstances on which any forward looking statement is based.

Imayev V.,University of Ulm | Imayev R.,RAS Institute for Metals Superplasticity Problems | Khismatullin T.,RAS Institute for Metals Superplasticity Problems | Oleneva T.,RAS Institute for Metals Superplasticity Problems | And 3 more authors.
Materials Science Forum | Year: 2010

Microstructure and hot workability have been considered for a number of γ-TiAl alloys including β-solidifying TNM alloys. All TNM alloys under study showed improved hot workability in cast condition. As was shown for the Ti-45Al-5Nb-1Mo-0.2B alloy, a critical issue of TNM alloys is room temperature ductility in the conditions with lamellar structure. © (2010) Trans Tech Publications.

Erxleben S.,Lasco Umformtechnik GmbH | Fellmann H.,Markisches Werk GmbH | Guther V.,GfE Metalle und Materialien GmbH | Janschek P.,Leistritz Turbinenkomponenten Remscheid GmbH | Lorenz B.,Fraunhofer Institute for Machine Tools and Forming Technology
Chemie-Ingenieur-Technik | Year: 2012

Semi-finished products made from nonferrous materials such as titanium, nickel and cobalt are usually available in limited sizes only and are difficult to process. Considerable inefficiency and material waste are the results especially in medium and small batch production. The paper presents first results of the development of incremental forming methods to provide new opportunities for resource-, energy- and cost efficient processing of such materials. These partially acting forming technologies offer a number of advantages. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Agency: European Commission | Branch: FP7 | Program: JTI-CS | Phase: JTI-CS-2011-1-SAGE-05-015 | Award Amount: 1.07M | Year: 2012

The HEXENOR proposal aims to study, design and manufacture three items ( short, mean, and long) each made of two innovative concepts, a quiet plug and a quiet diffuser which will be mounted on a turboshaft engine to reduce the noise radiated by the exhaust. A preliminary study is concerned with the capability of two materials a Ferritic stainless steel (low cost material) and TiAl alloy (light but fragile material) to satisfy the design constraints and the engine hard conditions. High cycle fatigue, thermo-mechanical and metallurgical characterization tests will be conducted before the design step. Also an academic work will be achieved to determine an optimal configuration of a new quiet diffuser concept made of angular and axial cavities surrounding an internal perforated wall of the duct lined section. This approach is based on the measurement with a flow duct facility developed during the Ducat European program without and with cold flow of the liner configurations efficiency for a higher order mode incident pressure vector and the development of an analytical model of the acoustic propagation through the lined barrel leading to the calculation of the attenuation of each configuration with and without flow. The choice of the optimal configuration which will be used to design the quiet diffuser will be the result of a tradeoff between acoustic efficiency provided by the academic study, mass and cost specifications.

Schmoelzer T.,University of Leoben | Mayer S.,University of Leoben | Sailer C.,University of Leoben | Haupt F.,GfE Fremat GmbH | And 4 more authors.
Advanced Engineering Materials | Year: 2011

Being a strong β stabilizer, Mo has gained importance as an alloying element for so-called β/γ-TiAl alloys. Intermetallic TiAl-based alloys which contain a significant volume fraction of the body-centered cubic β-phase at elevated temperatures have proven to exhibit good processing characteristics during hot-working. Unfortunately, the effect of Mo on the appearing phases and their temperature dependence is not well known. In this work, sections of the Ti-Al-Mo ternary phase diagram derived from thermodynamic calculations as well as experimental data are presented. The phase transition temperatures stated in these phase diagrams are compared with the results of high-temperature diffraction studies using high-energy synchrotron radiation. Additionally, the disordering temperature of the βo-phase is determined. Intermetallic TiAl alloys with high contents of disordered body-centered cubic β-phase are known to exhibit good processing characteristics during hot-working. Mo is one of the elements used for stabilizing this phase but has an otherwise not very well investigated influence on the phase equilibria. To shed light on the effect of Mo on the phase diagram, two model alloys with different Mo contents were produced and investigated by microscopic and diffraction techniques. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA.

Schmoelzer T.,University of Leoben | Mayer S.,University of Leoben | Haupt F.,GfE Fremat GmbH | Zickler G.A.,Christian Doppler Laboratory | And 5 more authors.
Materials Science Forum | Year: 2010

Intermetallic TiAl alloys with a significant volume fraction of the body-centered cubic β-phase at elevated temperatures have proven to exhibit good processing characteristics during hot-working. Being a strong β stabilizer, Mo has gained importance as an alloying element for so-called β/γ-TiAl alloys. Unfortunately, the effect of Mo on the appearing phases and their temperature dependence is not well known. In this work, two sections of the Ti-Al-Mo ternary phase diagram derived from experimental data are shown. These diagrams are compared with the results of in-situ high-temperature diffraction experiments using high-energy synchrotron radiation. © (2010) Trans Tech Publications.

Agency: European Commission | Branch: FP7 | Program: JTI-CS | Phase: JTI-CS-2010-4-SAGE-04-004 | Award Amount: 550.00K | Year: 2011

The major requirement on gamma-TiAl feedstock materials for subsequent forging operations (forging stocks) is a fine grained microstructure which decreases the flow stresses at elevated temperatures. Novel gamma-TiAl based TNM alloys have been developed from a consortium consisting of GfE, Bhler, MTU and University of Leoben in order to increase wrought processing capability by the addition of the bcc structured beta-Ti phase into the well known alpha2/gamma microstructure of Titanium Aluminides. As a side effect, the microstructure remains fine grained due to a different solidification path of the alloy which is characterized by a complete beta-solidification mechanism. It has been demonstrated that the as-cast TNM alloy can be subsequent wrought processed without primary ingot conversion via extrusion technology. Thus, the objective of the materials conversion technology is reduced to the generation of small size parts. There is a substantial interest in improved homogeneity, high reproducibility and low overall production costs including ingot manufacturing and ingot conversion. In the project, different materials production technologies such as VAR and PAM are being evaluated. The conversion of the resulting ingots to small size forging stocks will be performed via VAR skull melting and VIM skull melting, both followed by casting in permanent moulds, HIP and machining. The objective of the project is the development of a low cost casting process for gamma-TiAl based TNM alloys which guarantees to meet all technical specifications of the products.

Schwaighofer E.,University of Leoben | Schloffer M.,University of Leoben | Schmoelzer T.,University of Leoben | Mayer S.,University of Leoben | And 4 more authors.
Praktische Metallographie/Practical Metallography | Year: 2012

Intermetallic titanium aluminides are employed in aircraft engines and automobile engines because of their low density and excellent high-temperature properties Today's TiAI-based alloys are multi-phase alloys of a complex structure which mainly consist of γ-TiAl, α 2-T1 3AI and low fractions of a β 0-TiAI phase. An example of such an alloy is the so-called TNM alloy which exhibit a nominal composition of Ti-43 5AI-4Nb-1 Mo-0.1 B (in at.%) In this alloy, solidification takes place via the p-phase, with the consequence of a finegrained and nearly segregation-free micro-structure In spite of that, the cast microstruc-ture also contains coarser grains which can act as crack initiators at room temperature and will reduce the deformation capability during tensile tests. Within the framework of this paper, heat treatment studies were conducted on a cast and hot isostatically pressed material with the primary aim of a microstruc-tural homogenization in order to reduce the crack-initiating microstructural components and, hence, increase its fracture elongation at room temperature. In further heat treatments, microstructures with balanced mechanical properties were adjusted.

Schwaighofer E.,University of Leoben | Clemens H.,University of Leoben | Mayer S.,University of Leoben | Lindemann J.,TU Brandenburg | And 4 more authors.
Intermetallics | Year: 2014

Advanced intermetallic multi-phase γ-TiAl based alloys, such as TNM alloys with a nominal composition of Ti-43.5Al-4Nb-1Mo-0.1B (in at.%), are potential candidates to replace heavy Ni-base superalloys in the next generation of aircraft and automotive combustion engines. Aimed components are turbine blades and turbocharger turbine wheels. Concerning the cost factor arising during processing, which - additionally to material costs - significantly influences the final price of the desired components, new processing solutions regarding low-cost and highly reliable production processes are needed. This fundamental study targets the replacement of hot-working, i.e. forging, for the production of turbine blades. But without forging no grain refinement takes place by means of a recrystallization process because of the lack of stored lattice defects. Therefore, new heat treatment concepts have to be considered for obtaining final microstructures with balanced mechanical properties in respect to sufficient tensile ductility at room temperature as well as high creep strength at elevated temperatures. This work deals with the adjustment of microstructures in a cast and heat-treated TNM alloy solely by exploiting effects of phase transformations and chemical driving forces due to phase imbalances between different heat treatment steps and compares the mechanical properties to those obtained for forged and heat-treated material. © 2013 Elsevier Ltd. All rights reserved.

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