Molybdenum alloys with improved workability

具有改善加工性能的钼合金

• 批准号: 58850152
• 负责人: MOROZUMI Shotaro
• 金额: $ 8.38万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1983
• 资助国家: 日本
• 起止时间: 1983 至 1985
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-58850152/
• 关键词: Molybdenum; Scandium; Mo-0.5%V; Mo-0.1%Zr; internally-nitrided Mo alloys; 非消耗アーク融解

The results of preliminary fundamental experiment on the excellent deoxidation ability of scandium for the molten molybdenum was applied to the semi-continuous arc melting process of the metal and its alloys, Mo-0.5% V and Mo-0.1 Nb % alloys. Results obtained are as follows:(1) The melting process of molybdeum with scandium by the non-consumable electrode semi-continuous arc melting furnace was established.(2) Molybdenum, Mo-0.5% V and Mo-0.1% Zr alloy ingots melted by this process with small amounts of scandium were warm-worked to thin sheets and/or wire with intermittent annealing. Good workability of the ingots was obtained by the scandium addition.(3) Then, the Mo-0.5% V alloy sheet was tested for tensile properties to obtain technical data as a non-heat treatmentable molybdenum alloy.(4) Meanwhile, the Mo-0.1% Zr alloy sheet and wire were internally nitrided, and subsequently they were tensile tested. A high strength superior to TZM was obtained in this alloy which was easy workable before the treatment.(5) Microscopic examination showed that the no voids were observred in the weldment of molybdenum alloys melted with scandium, while large voids were found in the weldment of P/M molybdenum, and that zironium is a grain refining element of molybdenum weldment.

将钪对熔融钼的优良脱氧能力的初步基础实验结果应用于金属及其合金Mo-0.5%V和Mo-0.1Nb%合金的半连续电弧熔炼过程。结果如下：(1)建立了非自耗电极半连续电弧熔炼钼钪熔炼工艺。(2)采用该工艺熔炼的含少量钪的钼、Mo-0.5%V、Mo-0.1%Zr合金锭，通过间歇退火温加工成薄板和/或线材。通过添加钪，获得了良好的铸锭加工性。(3)然后，对Mo-0.5%V合金板进行拉伸性能测试，以获得作为不可热处理钼合金的技术数据。(4)同时，对Mo-0.1%Zr合金板和线材进行内部氮化，随后进行拉伸测试。该合金获得了优于TZM的高强度，且处理前易于加工。(5)显微观察表明，钪熔炼的钼合金焊件没有观察到气孔，而粉末冶金钼焊件则发现较大的气孔，锆是钼焊件的晶粒细化元素。

项目成果

Trans.Japan Inst.Metals. 25-6. (1984)

横贯日本金属研究所。

J. Less Common Metals. 99. (1984)

J. 不太常见的金属。

J.Less Common Metals. 99. (1984)

J. 不太常见的金属。

Trans. Japan Inst. Metals. 25-6. (1984)

跨。