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Prevention of Crack Formation in Electron-Beam Welded Joints of Dissimilar Metal Compounds (TiNi/Ti6Al4V)

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Metal Science and Heat Treatment Aims and scope

The microstructure, mechanical properties and element distribution in an electron-beam welded joint of dissimilar metal compounds (TiNi/Ti6Al4V) have been studied. To prevent crack formation, niobium was introduced to the compound as a filler material. The welding line preheating and electron-beam deviation toward the Ti6Al4V alloy were used. It was shown that fracturing of the welded joint occurs within the fusion zone and is characterized by a mixed ductile-brittle behavior.

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This work was supported by the National Natural Science Foundation of China (Project 51565040), Aviation science funds (2014ZE56016), Jiangxi science and technology plan projects (20151 BBE50034), and State laboratory of advanced welding and assembly technologies (AWJ-M15-03).

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Authors and Affiliations

  1. National Defense Key Disciplines Laboratory of Light Alloy Processing Science and Technology of Nanchang, Nanchang, China

    Zilin Zhan, Yuhua Chen, Shanlin Wang, Yongde Huang & Yuqing Mao

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  1. Zilin Zhan
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  2. Yuhua Chen
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  3. Shanlin Wang
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  4. Yongde Huang
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  5. Yuqing Mao
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Correspondence to Zilin Zhan.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 43 – 48, June, 2019.

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Zhan, Z., Chen, Y., Wang, S. et al. Prevention of Crack Formation in Electron-Beam Welded Joints of Dissimilar Metal Compounds (TiNi/Ti6Al4V). Met Sci Heat Treat 61, 373–378 (2019). https://doi.org/10.1007/s11041-019-00432-z

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