金属热处理 ›› 2020, Vol. 45 ›› Issue (10): 90-93.DOI: 10.13251/j.issn.0254-6051.2020.10.018

• 组织与性能 • 上一篇    下一篇

热轧TC4钛合金板富氧层中氧原子的固溶硬化行为

崔岩1, 陈玉东2, 董常青3, 孙新军2   

  1. 1.华北理工大学 冶金与能源学院, 河北 唐山 063210;
    2.钢铁研究总院 工程用钢研究所, 北京 100081;
    3.河北柳江盆地地质遗迹国家级自然保护区管理处, 河北 秦皇岛 066000
  • 收稿日期:2020-03-20 出版日期:2020-10-25 发布日期:2020-12-29
  • 作者简介:崔 岩(1979—),男,副教授,博士,主要研究方向为钛及钛合金材料、钢铁材料、复合金属材料等,E-mail:jackcui5090@163.com
  • 基金资助:
    国家重点研发计划(2016YFB0301200);河北省自然科学基金(E2016209390)

Solution hardening behavior of oxygen atom in oxygen-rich layer of hot rolled TC4 titanium alloy plate

Cui Yan1, Chen Yudong2, Dong Changqing3, Sun Xinjun2   

  1. 1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan Hebei 063210, China;
    2. Institute of Structural Steels, Central Iron and Steel Research Institute, Beijing 100081, China;
    3. Administration Office of Liujiang Geological Relics National Nature Reserve of Hebei Province, Qinhuangdao Hebei 066000, China
  • Received:2020-03-20 Online:2020-10-25 Published:2020-12-29

摘要: 通过波谱分析距表面不同深度的氧含量,研究了热轧TC4钛合金板富氧层氧元素浓度分布规律;同时研究了富氧层氧元素浓度对硬度的影响规律。结果表明: 热轧TC4钛合金板富氧层厚度约为60 μm,随着距离表面深度增大,富氧层中氧元素浓度逐渐减少;硬化层厚度与富氧层厚度一致,随着距离表面深度增大,硬度逐渐减小;富氧层中O原子的间隙固溶硬化效应导致钛合金形成硬化层;建立了氧浓度、距表面深度和显微硬度两两间的关系式。

关键词: TC4钛合金, 富氧层, 硬化层, 固溶氧

Abstract: Distribution law of oxygen concentration in the oxygen-rich layer of hot rolled TC4 titanium alloy plate was studied by spectrum analysis of the oxygen concentration at different depth from the surface. The effect of the oxygen concentration on the hardness of oxygen-rich layer was also studied.The results show that the thickness of oxygen-rich layer is about 60 μm; with the increase of distance from the surface, the oxygen concentration in the oxygen-rich layer decreases gradually; the thickness of the hardened layer is equal to that of the oxygen-rich layer, and the hardness decreases with the increase of distance from the surface. The interstitial solution hardening effect of oxygen atoms in the oxygen-rich layer leads to the formation of hardened layer in the alloy. The relationship between oxygen concentration, depth from surface and microhardness is established.

Key words: TC4 titanium alloy, oxygen-rich layer, hardened layer, oxygen in solid solution

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