A review on crucibles for induction melting of titanium alloys. (15th January 2020)

• Record Type: Journal Article
• Authors: Fashu, Simbarashe; Lototskyy, Mykhaylo; Davids, Moegamat Wafeeq; Pickering, Lydia; Linkov, Vladimir; Tai, Sun; Renheng, Tang; Fangming, Xiao; Fursikov, Pavel V.; Tarasov, Boris P.
• Is Part Of: Materials & design. Volume 186(2020)
• Publication Date: 2020-01-15
• Subjects: Titanium alloys -- Induction melting -- Crucible -- Chemical stability -- Thermal shock resistance; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2019.108295
• Languages: English
• ISSNs: 0264-1275

Abstract

Abstract: This review highlights the state of art progress in crucible designs which have been identified as showing potential for induction melting three groups of titanium alloys based on the systems; Ti–Al, Ti–Ni, as well as multicomponent Ti-based hydrogen storage alloys. Several important parameters for crucible design, including; crucible-melt interactions, thermodynamic stability, and, thermal shock resistance of different crucibles will be discussed. Based on the findings of the review, the selection criteria for identifying crucibles for melting titanium alloys were outlined and several specific promising solutions were suggested. Graphical abstract: Image 1 Highlights: Vacuum induction melting has high application potential in comparison to alternative melting techniques. Vacuum induction melting of titanium alloys is hindered by a lack of suitable crucibles. Suitable crucible must combine low reactivity with Ti melt at T≥1600°C, thermodynamic stability and thermal shock resistance. Coating of shock-resistant crucible with material chemically stable towards interaction with Ti melt is a promising solution. Crucible coatings have been successfully verified at laboratory scale, but at industrial scale it still poses a challenge.