Multiple Toughening Mechanisms of Laminated Ti-TiBw/Ti Composites Fabricated by Diffusion Welding

Bao Xi Liu; Lin Geng; Xiang Lin Dai; Fu Xing Yin; Lu Jun Huang

doi:10.4028/www.scientific.net/MSF.848.196

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HomeMaterials Science ForumMaterials Science Forum Vol. 848Multiple Toughening Mechanisms of Laminated...

Multiple Toughening Mechanisms of Laminated Ti-TiBw/Ti Composites Fabricated by Diffusion Welding

Abstract:

Laminated Ti-TiBw/Ti composites behave a moderate loading capacity and high fracture ductility with non-castropic failure stage under three-point bending test. Fracture characteristics of laminated composites reveal many extrinsic toughening behaviors, such as, interfacial delamination, bucking and crack deflection, and the interfacial delamination is attributed to the weak bonding strength. Many strengthening and toughening mechanisms are presented in the TiBw/Ti composite layer, such as de-bonding effects of TiB whiskers, multi-fracture of TiB whiskers, crack trapping effect and crack bridging effect.

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Periodical:

Materials Science Forum (Volume 848)

Pages:

196-201

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.848.196

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Online since:

March 2016

Authors:

Bao Xi Liu*, Lin Geng, Xiang Lin Dai, Fu Xing Yin, Lu Jun Huang

Keywords:

Fracture Properties, Laminated Composites, Three-Point Bending Test, Titanium Matrix Composites, Toughening Mechanism

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