Influence of calcium and fluorine on the performance of g-titanium aluminide - Impact of a new recycling procedure

钙和氟对 g-铝化钛性能的影响 - 新回收程序的影响

• 批准号: 237091967
• 负责人: Professor Dr.-Ing. Bernd Friedrich
• 金额: --
• 依托单位: Institut für Werkstoffwissenschaft
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/237091967?language=en
• 关键词: Influence; calcium; fluorine; performance; titanium

Gamma titanium aluminides are high-performance materials that are produced through a complex process chain resulting in significant production costs. In addition, IME conceives a process for recovering the considerable amount of scrap that accumulates during the conventional process route. The main objectives of the proposed project are to investigate the influence of the inevitable concomitant elements calcium and fluorine on the oxidation behavior and mechanical properties of titaniumaluminides quantitatively and to analyze the respective mode of action.The mode of action of calcium in titaniumaluminides has been almost completely unexplored. In contrast, fluorine announced that it has a very favorable influence on the oxidation resistance in near-surface regions. For the first time in the project fluorine should be examined as an alloying element in titaniumaluminides. Therefore, a process window must be identified wherein calcium and fluorine have a positive effect on the mechanical properties and the oxidation behavior. Major scientific discoveries of considerable practical relevance for this modern class of materials are expected.

伽马钛铝化物是高性能材料，通过复杂的工艺链生产，导致生产成本很高。此外，IME还设想了一种用于回收在传统工艺路线中积累的大量废料的工艺。该项目的主要目标是研究不可避免的伴生元素钙和氟对钛铝化合物的氧化行为和机械性能的影响，并定量分析各自的作用模式。相比之下，氟宣布，它有一个非常有利的影响，在近表面区域的抗氧化性。该项目首次将氟作为钛铝化物中的合金元素进行研究。因此，必须确定其中钙和氟对机械性能和氧化行为具有积极影响的工艺窗口。对这类现代材料具有相当实际意义的重大科学发现是值得期待的。

项目成果

A Closed Loop Recycling Technology for γ-TiAl from Precision Cast Low Pressure Turbine Blades

精密铸造低压汽轮机叶片γ-TiAl闭路回收技术

• DOI: 10.1002/cite.201500063
• 发表时间: 2015
• 期刊: Chemie Ingenieur Technik
• 影响因子: 1.9
• 作者: Peter Spiess;Marek Bartosinski;Bernd Friedrich;Todor Stoyanov;Julio Aguilar
• 通讯作者: Julio Aguilar

Introducing Carbon Nanoparticles in Titanium During Chamber Electroslag Remelting (Chesr)

在室式电渣重熔过程中在钛中引入碳纳米颗粒 (Chesr)

• DOI: 10.1007/978-3-319-48102-9_20
• 发表时间: 2013
• 作者: Sebastian Radwitz;Peter Spiess;Bernd Friedrich;Anatoliy Ryabtsev;Fedor Leokha;Sergey Ratiev;Olga Snizhko
• 通讯作者: Olga Snizhko

Examination of an alternative method for the pyrometallurgical production of copper-chromium alloys

铜铬合金火法生产替代方法的研究

• DOI: 10.1088/1757-899x/143/1/012016
• 发表时间: 2015
• 期刊: IOP Conf. Series: Materials Science and Engineering
• 作者: Siran Hassan-Pour;Peter Spiess;Janik Brenk;Bernd Friedrich
• 通讯作者: Bernd Friedrich

Experimental Research on the Absorption of Fluorine in Gamma‐TiAl during Electroslag Remelting

电渣重熔过程中GammaâTiAl吸氟实验研究

• DOI: 10.1007/978-3-319-48102-9_9
• 发表时间: 2013
• 作者: Peter Spiess;Bernd Friedrich
• 通讯作者: Bernd Friedrich

Influence of the Slag Composition on the Fluorine Absorption in γ-TiAl During IESR

IESR过程中炉渣成分对γ-TiAl吸氟的影响

• DOI: 10.1002/9781118998489.ch8
• 发表时间: 2014
• 作者: Peter Spiess;Bernd Friedrich
• 通讯作者: Bernd Friedrich