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Al-5Ti-1B晶粒細化劑對V-Al氫分離合金顯微組織和硬度的影響
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作者單位:

1.常州大學(xué);2.安徽工業(yè)大學(xué)

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國家自然科學(xué)基金(51705038, 51875002, 51875053)、中國博士后科學(xué)基金(2019M652158)和江蘇省研究生科研與實踐創(chuàng)新計劃項目(KYCX20_2535)


Effect of Al-5Ti-1B grain refiner on microstructure and hardness of V-Al alloys for hydrogen separation
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Affiliation:

1.SchoolSofSMechanicalSEngineering and Rail Transit,ChangzhouSUniversity;2.School of Materials Science and Engineering,Anhui University of Technology

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    摘要:

    在純V中分別添加5 wt%的Al和5 wt% Al-5Ti-1B(ATB)中間合金(晶粒細化劑)電弧熔煉形成V-5Al和V-5ATB合金鑄錠。利用光學(xué)顯微鏡(OM)、掃描電鏡(SEM)、X射線衍射儀(XRD)、透射電鏡(TEM)和顯微硬度儀等測試手段分析晶粒細化前后V-Al合金的顯微組織和硬度變化。結(jié)果表明：V-5ATB合金組織中析出長針狀第二相TiB使晶粒尺寸明顯減小,相比V-5Al合金,V-5ATB合金由于固溶、細晶和硬質(zhì)TiB第二相等強化效應(yīng)導(dǎo)致硬度提高。

    Abstract:

    5 wt% Al and 5 wt% Al-5Ti-1B (ATB) master alloy (grain refiner) were added into pure V to form V-5Al and V-5ATB alloy ingots by arc melting. Optical microscope (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM) and microhardness tester were used to analyze the microstructure and hardness variation of V-Al alloy before and after grain refinement. The results show that the grain size of V-5ATB alloy decreases obviously due to the precipitation of long needle-like second phases TiB. Compared with V-5Al alloy, the hardness of V-5TB alloy increases due to strengthening effect of solid solution, fine grain and hard TiB phase.

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江鵬,黃煥超,任文玥,宋廣生,劉惠,潘海軍,張屹. Al-5Ti-1B晶粒細化劑對V-Al氫分離合金顯微組織和硬度的影響[J].稀有金屬材料與工程,2021,50(8):3035~3038.[Jiang Peng, Huang Huanchao, Ren Wenyue, Song Guangheng, Liu Hui, Pan Haijun, Zhang Yi. Effect of Al-5Ti-1B grain refiner on microstructure and hardness of V-Al alloys for hydrogen separation[J]. Rare Metal Materials and Engineering,2021,50(8):3035~3038.]
DOI：10.12442/j. issn.1002-185X.20200930

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  • 收稿日期:2020-12-02
  • 最后修改日期:2020-12-27
  • 錄用日期:2021-01-15
  • 在線發(fā)布日期: 2021-09-07
  • 出版日期: 2021-08-31