Enhanced fracture toughness of TiBw/Ti3Al composites with a layered reinforcement distribution

Hao Wu; Guohua Fan; Bo Cheng Jin; Lin Geng; Xiping Cui; Meng Huang; Xiaochen Li; Steven Nutt

doi:10.1016/j.msea.2016.06.026

Enhanced fracture toughness of TiB_w/Ti₃Al composites with a layered reinforcement distribution

Hao Wu
, Guohua Fan^*
, Bo Cheng Jin
, Lin Geng
, Xiping Cui
, Meng Huang
, Xiaochen Li
, Steven Nutt

^*Corresponding author for this work

Harbin Institute of Technology
University of Southern California

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

20 Scopus citations

Abstract

The prospect of combining laminated structure design and tailored reinforcement distribution to toughen brittle materials is investigated. TiB_w/Ti₃Al–Ti₃Al laminated composites consisting of alternating TiB_w/Ti₃Al and Ti₃Al layers were fabricated by reaction annealing of stacked, alternating foils of TiB_w/Ti and Al. Enhancement in the fracture toughness is experimentally observed, which is attributed to stress redistribution and stress state change in laminated composites. Theoretical prediction of fracture toughness depending on a shear ligament toughening model agrees well with the experimental value. It is expected that the design strategy can be extended to other brittle intermetallic compounds, such as Ni–Al, Fe–Al, and Nb–Al systems.

Original language	English
Pages (from-to)	233-239
Number of pages	7
Journal	Materials Science and Engineering: A
Volume	670
DOIs	https://doi.org/10.1016/j.msea.2016.06.026
State	Published - 18 Jul 2016
Externally published	Yes

Keywords

Composites
Fracture
Interfaces
Intermetallics
Mechanical characterization

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10.1016/j.msea.2016.06.026

Cite this

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title = "Enhanced fracture toughness of TiBw/Ti3Al composites with a layered reinforcement distribution",

abstract = "The prospect of combining laminated structure design and tailored reinforcement distribution to toughen brittle materials is investigated. TiBw/Ti3Al–Ti3Al laminated composites consisting of alternating TiBw/Ti3Al and Ti3Al layers were fabricated by reaction annealing of stacked, alternating foils of TiBw/Ti and Al. Enhancement in the fracture toughness is experimentally observed, which is attributed to stress redistribution and stress state change in laminated composites. Theoretical prediction of fracture toughness depending on a shear ligament toughening model agrees well with the experimental value. It is expected that the design strategy can be extended to other brittle intermetallic compounds, such as Ni–Al, Fe–Al, and Nb–Al systems.",

keywords = "Composites, Fracture, Interfaces, Intermetallics, Mechanical characterization",

author = "Hao Wu and Guohua Fan and Jin, \{Bo Cheng\} and Lin Geng and Xiping Cui and Meng Huang and Xiaochen Li and Steven Nutt",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

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day = "18",

doi = "10.1016/j.msea.2016.06.026",

language = "英语",

volume = "670",

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journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Enhanced fracture toughness of TiBw/Ti3Al composites with a layered reinforcement distribution

AU - Wu, Hao

AU - Fan, Guohua

AU - Jin, Bo Cheng

AU - Geng, Lin

AU - Cui, Xiping

AU - Huang, Meng

AU - Li, Xiaochen

AU - Nutt, Steven

PY - 2016/7/18

Y1 - 2016/7/18

N2 - The prospect of combining laminated structure design and tailored reinforcement distribution to toughen brittle materials is investigated. TiBw/Ti3Al–Ti3Al laminated composites consisting of alternating TiBw/Ti3Al and Ti3Al layers were fabricated by reaction annealing of stacked, alternating foils of TiBw/Ti and Al. Enhancement in the fracture toughness is experimentally observed, which is attributed to stress redistribution and stress state change in laminated composites. Theoretical prediction of fracture toughness depending on a shear ligament toughening model agrees well with the experimental value. It is expected that the design strategy can be extended to other brittle intermetallic compounds, such as Ni–Al, Fe–Al, and Nb–Al systems.

AB - The prospect of combining laminated structure design and tailored reinforcement distribution to toughen brittle materials is investigated. TiBw/Ti3Al–Ti3Al laminated composites consisting of alternating TiBw/Ti3Al and Ti3Al layers were fabricated by reaction annealing of stacked, alternating foils of TiBw/Ti and Al. Enhancement in the fracture toughness is experimentally observed, which is attributed to stress redistribution and stress state change in laminated composites. Theoretical prediction of fracture toughness depending on a shear ligament toughening model agrees well with the experimental value. It is expected that the design strategy can be extended to other brittle intermetallic compounds, such as Ni–Al, Fe–Al, and Nb–Al systems.

KW - Composites

KW - Fracture

KW - Interfaces

KW - Intermetallics

KW - Mechanical characterization

UR - https://www.scopus.com/pages/publications/84975487474

U2 - 10.1016/j.msea.2016.06.026

DO - 10.1016/j.msea.2016.06.026

M3 - 文章

AN - SCOPUS:84975487474

SN - 0921-5093

VL - 670

SP - 233

EP - 239

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Enhanced fracture toughness of TiB_w/Ti₃Al composites with a layered reinforcement distribution

Abstract

Keywords

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