Study on atomic-scale deformation mechanism based on nanoindentation of duplex full lamellar TiAl alloys with different orientation relationships

Yi, Bingqi; Zheng, Min; Qu, Dingfeng; Wei, Xingchun; Chen, Weihua; Zhu, Zongxiao; Cheng, Jun

doi:10.1007/s00339-024-07320-1

Cited by 2 publications

(1 citation statement)

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“…Fortunately, with the increasing industrial demand for titanium aluminide (Ti-Al) alloys [5,6], there is a unique opportunity to develop advanced materials that offer exceptional engineering properties suitable for a wide array of commercial jet engines [7,8] that are also suitable for automobile engines [9,10], but most target applications in this article still will be emphasized in the aircraft industry field. Ti-Al, also referred to as a titanium aluminide intermetallic compound, encompasses TiAl 2 , TiAl 3 , α 2 -Ti 3 Al [11][12][13], and γ-TiAl, as demonstrated in Figure 1, which presents the Ti-Al phase diagram. Also, the Since 2014, γ-TiAl has been employed in the gas turbine blades of the GEnx aircraft engine by the US General Electric Company [14,15].…”

Section: Introductionmentioning

confidence: 99%

A Review of the State of Art of Fabrication Technologies of Titanium Aluminide (Ti-Al) Based on US Patents

Huang,

Lin,

Chung

2024

Metals

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This article evaluates the fabrication technologies of titanium aluminide (Ti-Al) and its practical applications by comparing it with the well-known Ti-Al binary phase diagram and US patents. Meanwhile, by analyzing and discussing the various patented Ti-Al fabrication technologies and applications, this article discusses the applications of Ti-Al-based alloys, mainly in the aircraft field. The improved fabrication processes and new application technologies are under patent protection. These technologies are classified into six categories: basic research on Ti-Al-based alloys, powder metallurgy of Ti-Al-based alloys, casting and melting of Ti-Al-based alloys, PM and AM manufacturing methods for aircraft applications, other fabrication technologies by Ti-Al-based alloys, and self-propagating high-temperature synthesis (SHS) of Ti-Al-based alloys. By comparing the principles and characteristics of the above techniques, the advantages, disadvantages, and application fields of each are analyzed and their developments are discussed. Based on the characteristics of Ti-Al, new fabrication and application technologies can be developed, which can overcome the existing disadvantages and be used to form new aircraft components.

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