The refining and strengthening behaviors of N doped TiCs particle on Al alloys

来源 :15th International Conference on Aluminium Alloys(ICAA15)(第十 | 被引量 : 0次 | 上传用户：qq439272757

【摘要】

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【作者】

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Huabing yang Haichao Wang Guiliang Liu Xiangfa Liu

【机构】

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Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials, Ministry of Educatio

【出处】

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15th International Conference on Aluminium Alloys(ICAA15)(第十

【发表日期】

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2016年3期

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A kind of N doped Al-4wt.％Ti-1wt.％ C (Al-4Ti-1C-N for short) master alloy was prepared and its phase component and microstructure were characterized by X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM) etc.The results show that TiCx particle doped with trace N element is the main second phase in Al-4Ti-1C-N master alloy.Compared with Al-5Ti-1B, the master alloy performs well on refining a-Al grain and its secondary dendrite arm spacing for A356 alloy.The average grain size and secondary dendrite arm spacing are 231 μm and 28 μm respectively refined by Al-4Ti-lC-N.When it comes to mechanic properties, the ultimate tensile strength (UTS) and elongation are 297 Mpa and 4.01％ refined by Al-4Ti-1C-N master alloy.The elongation of A356 alloy refined by Al-4Ti-1C-N increases 32％ compared with that by Al-5Ti-1B.

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The refining and strengthening behaviors of N doped TiCs particle on Al alloys

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