Experimental verification of molybdenum segregation for large-scale slab ingots of Ti–0.3Mo–0.8Ni alloy during electron-beam cold-hearth melting

ABSTRACT

Ti–0.3Mo–0.8Ni alloy has excellent corrosion resistance and is widely used in making crystallizers, heaters and evaporators for salt production, as well as chemical reactors and heat exchangers. To study the distribution of Mo in the Ti–0.3Mo–0.8Ni alloy during electron beam cold hearth melting, the solidification process has been numerically modelled and the calculations compared with experimental data. A distribution law similar to the calculated results is obtained, which verifies the reliability of the numerical modelling and provides theoretical guidance for the industrial production of Ti–0.3Mo–0.8Ni alloy. In addition, the experimental data indicates that the deviation of the Mo content in each end face and cross-section is within ±0.05%.

KEYWORDS:

• Slab ingot
• electron-beam cold-hearth melting
• segregation
• numerical simulation

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by Major Science and Technology Projects of Yunnan Science and Technology Plan [No. 202002AB080001].

Notes on contributors

Zhenze Zhu

Zhenze Zhu is a Ph.D student, He has been working on titanium alloy smelting for a long time.

Zulai Li

Zulai Li is a doctoral supervisor, and engaged in titanium alloy and wear resistant materials research.

Rongfeng Zhou

Rongfeng Zhou is a doctoral supervisor, and engaged in titanium alloy and copper alloy research.

Haiguang Huang

Haiguang Huang and Wentao Xiong is Ph.D students, they were working on titanium alloy and copper alloy, respectively.

Xiangming Li

Xiangming Li is a doctoral supervisor, and engaged in titanium alloy smelting.