Laminated Nb/Nb3Al composites: effect of layer thickness on fatigue and fracture behavior

D. R. Bloyer; K. T. Venkateswara Rao; R. O. Ritchie

doi:10.1016/s0921-5093(97)00608-4

Laminated Nb/Nb₃Al composites: effect of layer thickness on fatigue and fracture behavior

D. R. Bloyer, K. T. Venkateswara Rao, R. O. Ritchie

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

29 Citations (Scopus)

Abstract

Fracture and fatigue crack growth properties of coarse scale Nb/Nb₃Al laminated composites are examined, and their performance is contrasted with similarly reinforced in situ particulate and microlaminate composites. It is found that laminate orientation has a larger effect on fatigue crack growth resistance than on fracture toughness; properties are optimal in the crack arrester as compared with the crack divider orientation. In addition, thicker Nb layers yield improved fracture and fatigue crack growth properties; and the effect is more prominent in the divider orientation. Mechanisms underlying this behavior are briefly described.

Original language	English
Pages (from-to)	393-398
Journal	Materials Science and Engineering A
Volume	239-240
DOIs	https://doi.org/10.1016/s0921-5093(97)00608-4
Publication status	Published - Dec 1997
Externally published	Yes

Research Keywords

Fatigue
Fracture
Intermetallic
Laminates
Nb
Nb3Al
R-curve

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title = "Laminated Nb/Nb3Al composites: effect of layer thickness on fatigue and fracture behavior",

abstract = "Fracture and fatigue crack growth properties of coarse scale Nb/Nb3Al laminated composites are examined, and their performance is contrasted with similarly reinforced in situ particulate and microlaminate composites. It is found that laminate orientation has a larger effect on fatigue crack growth resistance than on fracture toughness; properties are optimal in the crack arrester as compared with the crack divider orientation. In addition, thicker Nb layers yield improved fracture and fatigue crack growth properties; and the effect is more prominent in the divider orientation. Mechanisms underlying this behavior are briefly described. ",

keywords = "Fatigue, Fracture, Intermetallic, Laminates, Nb, Nb3Al, R-curve",

author = "Bloyer, {D. R.} and {Venkateswara Rao}, {K. T.} and Ritchie, {R. O.}",

year = "1997",

month = dec,

doi = "10.1016/s0921-5093(97)00608-4",

language = "English",

volume = "239-240",

pages = "393--398",

journal = "Materials Science and Engineering A",

issn = "0921-5093",

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TY - JOUR

T1 - Laminated Nb/Nb3Al composites

T2 - effect of layer thickness on fatigue and fracture behavior

AU - Bloyer, D. R.

AU - Venkateswara Rao, K. T.

AU - Ritchie, R. O.

PY - 1997/12

Y1 - 1997/12

N2 - Fracture and fatigue crack growth properties of coarse scale Nb/Nb3Al laminated composites are examined, and their performance is contrasted with similarly reinforced in situ particulate and microlaminate composites. It is found that laminate orientation has a larger effect on fatigue crack growth resistance than on fracture toughness; properties are optimal in the crack arrester as compared with the crack divider orientation. In addition, thicker Nb layers yield improved fracture and fatigue crack growth properties; and the effect is more prominent in the divider orientation. Mechanisms underlying this behavior are briefly described.

AB - Fracture and fatigue crack growth properties of coarse scale Nb/Nb3Al laminated composites are examined, and their performance is contrasted with similarly reinforced in situ particulate and microlaminate composites. It is found that laminate orientation has a larger effect on fatigue crack growth resistance than on fracture toughness; properties are optimal in the crack arrester as compared with the crack divider orientation. In addition, thicker Nb layers yield improved fracture and fatigue crack growth properties; and the effect is more prominent in the divider orientation. Mechanisms underlying this behavior are briefly described.

KW - Fatigue

KW - Fracture

KW - Intermetallic

KW - Laminates

KW - Nb

KW - Nb3Al

KW - R-curve

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U2 - 10.1016/s0921-5093(97)00608-4

DO - 10.1016/s0921-5093(97)00608-4

M3 - RGC 21 - Publication in refereed journal

SN - 0921-5093

VL - 239-240

SP - 393

EP - 398

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

ER -