International Journal of Extreme Manufacturing, Volume. 3, Issue 2, 22001(2021)

Towards understanding the brittle–ductile transition in the extreme manufacturing

Tao Zhang1,2,3, Feng Jiang1,2, Hui Huang1,2, Jing Lu1,2, Yueqin Wu1,2, Zhengyi Jiang3, and Xipeng Xu1,2、*
Author Affiliations
  • 1National and Local Joint Engineering Research Center for Intelligent Manufacturing Technology of Brittle Material Products, Xiamen 361021, People’s Republic of China
  • 2Institute of Manufacturing Engineering, National Huaqiao University, Xiamen 361021, People’s Republic of China
  • 3School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong NSW 2522, Australia
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    The brittle–ductile transition (BDT) widely exists in the manufacturing with extremely small deformation scale, thermally assisted machining, and high-speed machining. This paper reviews the BDT in extreme manufacturing. The factors affecting the BDT in extreme manufacturing are analyzed, including the deformation scale and deformation temperature induced brittle-to-ductile transition, and the reverse transition induced by grain size and strain rate. A discussion is arranged to explore the mechanisms of BDT and how to improve the machinability based on the BDT. It is proposed that the mutual transition between brittleness and ductility results from the competition between the occurrence of plastic deformation and the propagation of cracks. The brittleness or ductility of machined material should benefit a specific manufacturing process, which can be regulated by the deformation scale, deformation temperature and machining speed.


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    Tao Zhang, Feng Jiang, Hui Huang, Jing Lu, Yueqin Wu, Zhengyi Jiang, Xipeng Xu. Towards understanding the brittle–ductile transition in the extreme manufacturing[J]. International Journal of Extreme Manufacturing, 2021, 3(2): 22001

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    Paper Information

    Category: Topical Review

    Received: Aug. 26, 2020

    Accepted: --

    Published Online: Jan. 10, 2022

    The Author Email: Xu Xipeng (



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