4.5 Article

Influence of Holding Time on Interfacial Reaction Layer Characteristics and Wear Properties of CBN/Cu-Sn-Ti Composites

Publisher

SPRINGER
DOI: 10.1007/s11663-020-01813-z

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Funding

  1. National Natural Science Foundation of China [51622401, 51861130361, 51861145312, 51850410522]
  2. Newton Advanced Fellowship by Royal Society [RP12G0414]
  3. Research Fund for Central Universities [N172502004]
  4. Xing Liao Talents Program [XLYC1807024, XLYC1802024]
  5. Global Talents Recruitment Program by the Chinese Government
  6. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University [SKLSP201805]

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Effects of different holding time on CBN/Cu-Sn-Ti composites have been thoroughly documented. It is revealed that adequate wetting can only take place at 30 minutes and beyond. The thickness of reaction layer is governed by Ti diffusion, and follows a parabolic growth rate until Ti is fully consumed at the compensation of interfacial reactions. Concurrently, more stable Cu3Sn1 has been generated due to the decomposition of unstable Cu41Sn11, which leads to an enhanced wear performance.

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