Crack growth characteristic for diffusion bonded laminates of TC4 titanium alloy with localized no-welded area

Xiao Fan He; Yan Mao Liu; Wen Ting Liu; Yan Peng Sun; Xiang Ming Wang

doi:10.3969/j.issn.1005-5053.2011.5.015

Crack growth characteristic for diffusion bonded laminates of TC4 titanium alloy with localized no-welded area

Xiao Fan He^*
, Yan Mao Liu
, Wen Ting Liu
, Yan Peng Sun
, Xiang Ming Wang

^*Corresponding author for this work

School of Aeronautic Science and Engineering

Beihang University
China Aviation Industry Corporation

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

3 Scopus citations

Abstract

To research the crack growth characteristics of diffusion bonded laminates with localized no-welded region of TC4 titanium alloy, the fatigue tests for 8mm thick TC4 three-layer diffusion bonded laminates with localized φ12mm and φ15mm no-welded area were conducted under the constant amplitude fatigue stress of R=0.093 inserted with marker load of R=0.7. The crack growth (a, N) data were obtained by QF. The analysis on the failure surface shows the crack growth could be divided into three phases. The contrast on the da/dN-a curves of those coupons shows that the crack growth characteristic in the no-welded area has no difference, the crack growth rate of the φ15mm no-welded area is lower than that of φ12mm no-welded area in the welded boundary area.

Original language	English
Pages (from-to)	77-81
Number of pages	5
Journal	Journal of Aeronautical Materials
Volume	31
Issue number	5
DOIs	https://doi.org/10.3969/j.issn.1005-5053.2011.5.015
State	Published - Oct 2011

Keywords

Crack growth
Diffusion bonded
Laminate
Titanium alloy

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10.3969/j.issn.1005-5053.2011.5.015

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title = "Crack growth characteristic for diffusion bonded laminates of TC4 titanium alloy with localized no-welded area",

abstract = "To research the crack growth characteristics of diffusion bonded laminates with localized no-welded region of TC4 titanium alloy, the fatigue tests for 8mm thick TC4 three-layer diffusion bonded laminates with localized φ12mm and φ15mm no-welded area were conducted under the constant amplitude fatigue stress of R=0.093 inserted with marker load of R=0.7. The crack growth (a, N) data were obtained by QF. The analysis on the failure surface shows the crack growth could be divided into three phases. The contrast on the da/dN-a curves of those coupons shows that the crack growth characteristic in the no-welded area has no difference, the crack growth rate of the φ15mm no-welded area is lower than that of φ12mm no-welded area in the welded boundary area.",

keywords = "Crack growth, Diffusion bonded, Laminate, Titanium alloy",

author = "He, \{Xiao Fan\} and Liu, \{Yan Mao\} and Liu, \{Wen Ting\} and Sun, \{Yan Peng\} and Wang, \{Xiang Ming\}",

year = "2011",

month = oct,

doi = "10.3969/j.issn.1005-5053.2011.5.015",

language = "英语",

volume = "31",

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}

TY - JOUR

T1 - Crack growth characteristic for diffusion bonded laminates of TC4 titanium alloy with localized no-welded area

AU - He, Xiao Fan

AU - Liu, Yan Mao

AU - Liu, Wen Ting

AU - Sun, Yan Peng

AU - Wang, Xiang Ming

PY - 2011/10

Y1 - 2011/10

N2 - To research the crack growth characteristics of diffusion bonded laminates with localized no-welded region of TC4 titanium alloy, the fatigue tests for 8mm thick TC4 three-layer diffusion bonded laminates with localized φ12mm and φ15mm no-welded area were conducted under the constant amplitude fatigue stress of R=0.093 inserted with marker load of R=0.7. The crack growth (a, N) data were obtained by QF. The analysis on the failure surface shows the crack growth could be divided into three phases. The contrast on the da/dN-a curves of those coupons shows that the crack growth characteristic in the no-welded area has no difference, the crack growth rate of the φ15mm no-welded area is lower than that of φ12mm no-welded area in the welded boundary area.

AB - To research the crack growth characteristics of diffusion bonded laminates with localized no-welded region of TC4 titanium alloy, the fatigue tests for 8mm thick TC4 three-layer diffusion bonded laminates with localized φ12mm and φ15mm no-welded area were conducted under the constant amplitude fatigue stress of R=0.093 inserted with marker load of R=0.7. The crack growth (a, N) data were obtained by QF. The analysis on the failure surface shows the crack growth could be divided into three phases. The contrast on the da/dN-a curves of those coupons shows that the crack growth characteristic in the no-welded area has no difference, the crack growth rate of the φ15mm no-welded area is lower than that of φ12mm no-welded area in the welded boundary area.

KW - Crack growth

KW - Diffusion bonded

KW - Laminate

KW - Titanium alloy

UR - https://www.scopus.com/pages/publications/80655127903

U2 - 10.3969/j.issn.1005-5053.2011.5.015

DO - 10.3969/j.issn.1005-5053.2011.5.015

M3 - 文章

AN - SCOPUS:80655127903

SN - 1005-5053

VL - 31

SP - 77

EP - 81

JO - Journal of Aeronautical Materials

JF - Journal of Aeronautical Materials

IS - 5

ER -

Crack growth characteristic for diffusion bonded laminates of TC4 titanium alloy with localized no-welded area

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Keywords

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