Electron beam melting toward inclusion-free titanium alloys

9th International Symposium on Electromagnetic Processing of Materials

材料科学;物理学

Funagane, H.^1

Advanced Technology Research Laboratories, Nippon Steel and Sumitomo Metal Corporation, 20-1 Shintomi, Futtu Chiba

293-8511, Japan^1

关键词: Cold crucibles;    High standards;    Marangoni flows;    Risk of contamination;    Titanium ingots;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/424/1/012018/pdf
DOI  :  10.1088/1757-899X/424/1/012018

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Titanium ingots for airplanes must satisfy high standards of quality, removal of inclusions is essential. For the purpose of reducing the risk of contamination by LDI, a new way of removal of LDI has been studied. In the present study, marangoni flow induced by Intensive Heating of electron beam (IH) has been considered to control a state of a flow of molten metal in a cold crucible. Numerical simulations and an experiment have verified that LDI bounding for a lip was not able to go through the IH and stayed in a hearth.