Thermo-mechanical fatigue of SiC whisker reinforced 6061Al composites: II. Fatigue life and damage mechanism

Lihe Qian; Zhongguang Wang; Hiroyuki Toda; Toshiro Kobayashi

Thermo-mechanical fatigue of SiC whisker reinforced 6061Al composites: II. Fatigue life and damage mechanism

Lihe Qian
, Zhongguang Wang
, Hiroyuki Toda
, Toshiro Kobayashi

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

Abstract

The In-phase (IP) and out-of-phase (OP) thermo-mechanical fatigue (TMF) life and damage mechanism were studied on 15%SiC_W(volume fraction) and 28%SiC_W/6061Al. The result indicates that in small strain range, the IP TMF life is longer than that of the OP-TMF; in large strain range it is close to( for 28%SiC_W) or even shorter than the OP-TMF life (for 15%SiC_W). A comparison of the fatigue lives between the two composites illustrates that in the case of the OP-TMF, 15%SiC_W/6061Al shows longer life than 28% SiC_W/6061Al, however, in the case of IP-TMF, there is a crossover between the fatigue life curves of the two composites, meaning that the life being longer or shorter depends on strain level. Their damage processes are all related to initiation, growth and coalescence of voids in the matrix around whiskers.

Original language	English
Pages (from-to)	1203-1207
Number of pages	5
Journal	Jinshu Xuebao/Acta Metallurgica Sinica
Volume	37
Issue number	11
Publication status	Published - Nov 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Cite this

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title = "Thermo-mechanical fatigue of SiC whisker reinforced 6061Al composites: II. Fatigue life and damage mechanism",

abstract = "The In-phase (IP) and out-of-phase (OP) thermo-mechanical fatigue (TMF) life and damage mechanism were studied on 15\%SiCW(volume fraction) and 28\%SiCW/6061Al. The result indicates that in small strain range, the IP TMF life is longer than that of the OP-TMF; in large strain range it is close to( for 28\%SiCW) or even shorter than the OP-TMF life (for 15\%SiCW). A comparison of the fatigue lives between the two composites illustrates that in the case of the OP-TMF, 15\%SiCW/6061Al shows longer life than 28\% SiCW/6061Al, however, in the case of IP-TMF, there is a crossover between the fatigue life curves of the two composites, meaning that the life being longer or shorter depends on strain level. Their damage processes are all related to initiation, growth and coalescence of voids in the matrix around whiskers.",

author = "Lihe Qian and Zhongguang Wang and Hiroyuki Toda and Toshiro Kobayashi",

year = "2001",

month = nov,

language = "English",

volume = "37",

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journal = "Jinshu Xuebao/Acta Metallurgica Sinica",

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publisher = "Chinese Academy of Sciences",

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T1 - Thermo-mechanical fatigue of SiC whisker reinforced 6061Al composites

T2 - II. Fatigue life and damage mechanism

AU - Qian, Lihe

AU - Wang, Zhongguang

AU - Toda, Hiroyuki

AU - Kobayashi, Toshiro

PY - 2001/11

Y1 - 2001/11

N2 - The In-phase (IP) and out-of-phase (OP) thermo-mechanical fatigue (TMF) life and damage mechanism were studied on 15%SiCW(volume fraction) and 28%SiCW/6061Al. The result indicates that in small strain range, the IP TMF life is longer than that of the OP-TMF; in large strain range it is close to( for 28%SiCW) or even shorter than the OP-TMF life (for 15%SiCW). A comparison of the fatigue lives between the two composites illustrates that in the case of the OP-TMF, 15%SiCW/6061Al shows longer life than 28% SiCW/6061Al, however, in the case of IP-TMF, there is a crossover between the fatigue life curves of the two composites, meaning that the life being longer or shorter depends on strain level. Their damage processes are all related to initiation, growth and coalescence of voids in the matrix around whiskers.

AB - The In-phase (IP) and out-of-phase (OP) thermo-mechanical fatigue (TMF) life and damage mechanism were studied on 15%SiCW(volume fraction) and 28%SiCW/6061Al. The result indicates that in small strain range, the IP TMF life is longer than that of the OP-TMF; in large strain range it is close to( for 28%SiCW) or even shorter than the OP-TMF life (for 15%SiCW). A comparison of the fatigue lives between the two composites illustrates that in the case of the OP-TMF, 15%SiCW/6061Al shows longer life than 28% SiCW/6061Al, however, in the case of IP-TMF, there is a crossover between the fatigue life curves of the two composites, meaning that the life being longer or shorter depends on strain level. Their damage processes are all related to initiation, growth and coalescence of voids in the matrix around whiskers.

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M3 - Article

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SN - 0412-1961

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JO - Jinshu Xuebao/Acta Metallurgica Sinica

JF - Jinshu Xuebao/Acta Metallurgica Sinica

IS - 11

ER -

Thermo-mechanical fatigue of SiC whisker reinforced 6061Al composites: II. Fatigue life and damage mechanism

Abstract

All Science Journal Classification (ASJC) codes

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