The influence of interface reaction zone on interfacial fracture toughness of SiC fiber reinforced titanium matrix composites

Q. Sun; Y. Q. Yang; B. Huang; X. Luo; C. L. Xue

doi:10.1080/09276440.2018.1440847

The influence of interface reaction zone on interfacial fracture toughness of SiC fiber reinforced titanium matrix composites

Q. Sun, Y. Q. Yang, B. Huang, X. Luo, C. L. Xue

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A fiber-reaction zone-matrix three-phase model is developed to evaluate the interfacial fracture toughness of titanium alloys reinforced by SiC monofilaments. Based on fracture mechanics, theoretical equations of G_IIc are presented, and the effects of several key factors such as crack length and the interface reaction zone thickness on the critical applied stress necessary for crack growth and interfacial fracture toughness are discussed. Finally, the interfacial fracture toughness of typical composites including Sigma1240/Ti-6Al-4V, SCS-6/Ti-6Al-4V, SCS-6/Timetal 834, SCS-6/Timetal 21s, SCS-6/Ti-24Al-11Nb and SCS-6/Ti-15V-3Cr are predicted by the model. The results show that the model can reliably predict the interfacial fracture toughness of the titanium matrix composites.

Original language	English
Pages (from-to)	929-947
Number of pages	19
Journal	Composite Interfaces
Volume	25
Issue number	10
DOIs	https://doi.org/10.1080/09276440.2018.1440847
State	Published - 3 Oct 2018

Keywords

interface reaction zone
Interfacial fracture toughness
push-out
shear-lag method

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title = "The influence of interface reaction zone on interfacial fracture toughness of SiC fiber reinforced titanium matrix composites",

abstract = "A fiber-reaction zone-matrix three-phase model is developed to evaluate the interfacial fracture toughness of titanium alloys reinforced by SiC monofilaments. Based on fracture mechanics, theoretical equations of GIIc are presented, and the effects of several key factors such as crack length and the interface reaction zone thickness on the critical applied stress necessary for crack growth and interfacial fracture toughness are discussed. Finally, the interfacial fracture toughness of typical composites including Sigma1240/Ti-6Al-4V, SCS-6/Ti-6Al-4V, SCS-6/Timetal 834, SCS-6/Timetal 21s, SCS-6/Ti-24Al-11Nb and SCS-6/Ti-15V-3Cr are predicted by the model. The results show that the model can reliably predict the interfacial fracture toughness of the titanium matrix composites.",

keywords = "interface reaction zone, Interfacial fracture toughness, push-out, shear-lag method",

author = "Q. Sun and Yang, {Y. Q.} and B. Huang and X. Luo and Xue, {C. L.}",

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T1 - The influence of interface reaction zone on interfacial fracture toughness of SiC fiber reinforced titanium matrix composites

AU - Sun, Q.

AU - Yang, Y. Q.

AU - Huang, B.

AU - Luo, X.

AU - Xue, C. L.

PY - 2018/10/3

Y1 - 2018/10/3

N2 - A fiber-reaction zone-matrix three-phase model is developed to evaluate the interfacial fracture toughness of titanium alloys reinforced by SiC monofilaments. Based on fracture mechanics, theoretical equations of GIIc are presented, and the effects of several key factors such as crack length and the interface reaction zone thickness on the critical applied stress necessary for crack growth and interfacial fracture toughness are discussed. Finally, the interfacial fracture toughness of typical composites including Sigma1240/Ti-6Al-4V, SCS-6/Ti-6Al-4V, SCS-6/Timetal 834, SCS-6/Timetal 21s, SCS-6/Ti-24Al-11Nb and SCS-6/Ti-15V-3Cr are predicted by the model. The results show that the model can reliably predict the interfacial fracture toughness of the titanium matrix composites.

AB - A fiber-reaction zone-matrix three-phase model is developed to evaluate the interfacial fracture toughness of titanium alloys reinforced by SiC monofilaments. Based on fracture mechanics, theoretical equations of GIIc are presented, and the effects of several key factors such as crack length and the interface reaction zone thickness on the critical applied stress necessary for crack growth and interfacial fracture toughness are discussed. Finally, the interfacial fracture toughness of typical composites including Sigma1240/Ti-6Al-4V, SCS-6/Ti-6Al-4V, SCS-6/Timetal 834, SCS-6/Timetal 21s, SCS-6/Ti-24Al-11Nb and SCS-6/Ti-15V-3Cr are predicted by the model. The results show that the model can reliably predict the interfacial fracture toughness of the titanium matrix composites.

KW - interface reaction zone

KW - Interfacial fracture toughness

KW - push-out

KW - shear-lag method

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DO - 10.1080/09276440.2018.1440847

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IS - 10

ER -

The influence of interface reaction zone on interfacial fracture toughness of SiC fiber reinforced titanium matrix composites

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Keywords

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