Damage accumulation and failure behaviors are crucial concerns during the design and service of a critical component, leading researchers and engineers to thoroughly identifying the crack evolution. Third-generation synchrotron radiation X-ray computed microtomography can be used to detect the inner damage evolution of a large-density material or component. This paper provides a brief review of studying the crack initiation and propagation inside lightweight materials with advanced synchrotron three-dimensional (3D) X-ray imaging, such as aluminum materials. Various damage modes under both static and dynamic loading are elucidated for pure aluminum, aluminum alloy matrix, aluminum alloy metal matrix composite, and aluminum alloy welded joint. For aluminum alloy matrix, metallurgical defects (porosity, void, inclusion, precipitate, etc.) or artificial defects (notch, scratch, pit, etc.) strongly affect the crack initiation and propagation. For aluminum alloy metal matrix composites, the fracture occurs either from the particle debonding or voids at the particle/matrix interface, and the void evolution is closely related with fatigued cycles. For the hybrid laser welded aluminum alloy, fatigue cracks usually initiate from gas pores located at the surface or sub-surface and gradually propagate to a quarter ellipse or a typical semi-ellipse profile.
. [J]. Frontiers of Mechanical Engineering, 2018, 13(4): 461-481.
Y. LUO, S. C. WU, Y. N. HU, Y. N. FU. Cracking evolution behaviors of lightweight materials based on in situ synchrotron X-ray tomography: A review. Front. Mech. Eng., 2018, 13(4): 461-481.
J Schijve. Fatigue of Structures and Materials. New York: Springer, 2001
2
S C Wu, S Q Zhang, Z W Xu, et al. Cyclic plastic strain based damage tolerance for railway axles in China. International Journal of Fatigue, 2016, 93: 64–70 https://doi.org/10.1016/j.ijfatigue.2016.08.006
3
A Thompson, I Maskery, R K Leach. X-ray computed tomography for additive manufacturing: A review. Measurement Science & Technology, 2016, 27(7): 072001 https://doi.org/10.1088/0957-0233/27/7/072001
J Y Buffière, E Ferrie, H Proudhon, et al. Three-dimensional visualisation of fatigue cracks in metals using high resolution synchrotron X-ray microtomography. Materials Science and Technology, 2006, 22(9): 1019–1024 https://doi.org/10.1179/174328406X114135
6
C Bathias, A Pineau. Fatigue of Materials and Structures. New York: Wiley, 2010
7
J Y Buffière, E Maire, J Adrien, et al. In situ experiments with X ray tomography: An attractive tool for experimental mechanics. Experimental Mechanics, 2010, 50(3): 289–305 https://doi.org/10.1007/s11340-010-9333-7
8
S G Wang, S C Wang, L Zhang. The application of high resolution X-ray tomography in materials science. Acta Metallurgica Sinica, 2013, 49(8): 897–910 https://doi.org/10.3724/SP.J.1037.2013.00107
9
S C Wu, T Q Xiao, P J Withers. The imaging of failure in structural materials by synchrotron radiation X-ray microtomography. Engineering Fracture Mechanics, 2017, 182: 127–156 https://doi.org/10.1016/j.engfracmech.2017.07.027
10
R Z Wang, X C Zhang, S T Tu, et al. A modified strain energy density exhaustion model for creep fatigue life prediction. International Journal of Fatigue, 2016, 90: 12–22 https://doi.org/10.1016/j.ijfatigue.2016.03.005
11
H Toda, S Masuda, R Batres, et al. Statistical assessment of fatigue crack initiation from sub-surface hydrogen micropores in high-quality die-cast aluminum. Acta Materialia, 2011, 59(12): 4990–4998 https://doi.org/10.1016/j.actamat.2011.04.049
12
S C Wu, C Yu, W H Zhang, et al. Porosity induced fatigue damage of laser welded 7075-T6 joints investigated via synchrotron X-ray microtomography. Science and Technology of Welding and Joining, 2015, 20(1): 11–19 https://doi.org/10.1179/1362171814Y.0000000249
13
H A Bale, A Haboub, A A MacDowell, et al. Real-time quantitative imaging of failure events in materials under load at temperatures above 1600 °C. Nature Materials, 2013, 12(1): 40–46 https://doi.org/10.1038/nmat3497
14
A Rack, L Assoufid, R Dietsch, et al. Study of multilayer-reflected beam profiles and their coherence properties using beamlines ID19 (ESRF) and 32-ID (APS). AIP Conference Proceedings, 2012, 1437: 15–17 https://doi.org/10.1063/1.3703335
15
E Ikenaga, M Kobata, H Matsuda, et al. Development of high lateral and wide angle resolved hard X-ray photoemission spectroscopy at BL47XU in SPring-8. Journal of Electron Spectroscopy and Related Phenomena, 2013, 190: 180–187 https://doi.org/10.1016/j.elspec.2013.04.004
16
H L Xie, B Deng, G H Du, et al. Latest advances of X-ray imaging and biomedical applications beamline at SSRF. Nuclear Science and Techniques, 2015, 26: 020102
17
A A MacDowell, D Y Parkinson, A Haboub, et al. X-ray micro-tomography at the advanced light source. SPIE Proceedings 8506, Development in X-ray Tomography VIII, 2012, 8506: 850618 https://doi.org/10.1117/12.930243
C Gupta, H Toda, T Fujioka, et al. Quantitative tomography of hydrogen precharged and uncharged Al-Zn-Mg-Cu alloy after tensile fracture. Materials Science and Engineering A, 2016, 670: 300–313 https://doi.org/10.1016/j.msea.2016.06.011
20
F Hannard, T Pardoen, E Maire, et al. Characterization and micromechanical modelling of microstructural heterogeneity effects on ductile fracture of 6xxx aluminium alloys. Acta Materialia, 2016, 103: 558–572 https://doi.org/10.1016/j.actamat.2015.10.008
Y Hangai, K Takahashi, R Yamaguchi, et al. Nondestructive observation of pore structure deformation behavior of functionally graded aluminum foam by X-ray computed tomography. Materials Science and Engineering A, 2012, 556: 678–684 https://doi.org/10.1016/j.msea.2012.07.047
23
S C Wu, C Yu, P S Yu, et al. Corner fatigue cracking behavior of hybrid laser AA7020 welds by synchrotron X-ray computed microtomography. Materials Science and Engineering A, 2016, 651: 604–614 https://doi.org/10.1016/j.msea.2015.11.011
24
M Teranishi, O Kuwazuru, S Gennai, et al. Three-dimensional stress and strain around real shape Si particles in cast aluminum alloy under cyclic loading. Materials Science and Engineering A, 2016, 678: 273–285 https://doi.org/10.1016/j.msea.2016.10.004
25
N R Green, J Campbell. Statistical distributions of fracture strengths of cast Al-7Si-Mg alloy. Materials Science and Engineering A, 1993, 173(1–2): 261–266 https://doi.org/10.1016/0921-5093(93)90226-5
26
J Y Buffière, S Savelli, P H Jouneau, et al. Experimental study of porosity and its relation to fatigue mechanisms of model Al-Si7-Mg0.3 cast Al alloys. Materials Science and Engineering A, 2001, 316(1–2): 115–126 https://doi.org/10.1016/S0921-5093(01)01225-4
27
I Serrano-Munoz, J Y Buffière, C Verdu, et al. Influence of surface and internal casting defects on the fatigue behaviour of A357-T6 cast aluminum alloy. International Journal of Fatigue, 2016, 82: 361–370 https://doi.org/10.1016/j.ijfatigue.2015.07.032
28
E Nizery, H Proudhon, J Y Buffière, et al. Three-dimensional characterization of fatigue-relevant intermetallic particles in high-strength aluminum alloys using synchrotron X-ray nanotomography. Philosophical Magazine, 2015, 95(25): 2731–2746 https://doi.org/10.1080/14786435.2015.1076940
29
W Ludwig, J Y Buffière, S Savelli, et al. Study of the interaction of a short fatigue crack with grain boundaries in a cast Al alloy using X-ray microtomography. Acta Materialia, 2003, 51(3): 585–598 https://doi.org/10.1016/S1359-6454(02)00320-8
30
L Qian, H Toda, K Uesugi, et al. Application of synchrotron x-ray microtomography to investigate ductile fracture in Al alloys. Applied Physics Letters, 2005, 87(24): 241907 https://doi.org/10.1063/1.2142081
S Dezecot, J Y Buffière, A Koster, et al. In situ 3D characterization of high temperature fatigue damage mechanisms in a cast aluminum alloy using synchrotron X-ray tomography. Scripta Materialia, 2016, 113: 254–258 https://doi.org/10.1016/j.scriptamat.2015.11.017
33
A de Pannemaecker, S Fouvry, M Brochu, et al. Identification of the fatigue stress intensity factor threshold for different load ratios R: From fretting fatigue to C(T) fatigue experiments. International Journal of Fatigue, 2016, 82: 211–225 https://doi.org/10.1016/j.ijfatigue.2015.07.015
34
E Ferrié, J Y Buffière, W Ludwig, et al. Fatigue crack propagation: In situ visualization using X-ray microtomography and 3D simulation using the extended finite element method. Acta Materialia, 2006, 54(4): 1111–1122 https://doi.org/10.1016/j.actamat.2005.10.053
35
H Zhang, H Toda, P Qu, et al. Three-dimensional fatigue crack growth behavior in an aluminum alloy investigated with in situ high-resolution synchrotron X-ray microtomography. Acta Materialia, 2009, 57(11): 3287–3300 https://doi.org/10.1016/j.actamat.2009.03.036
36
H Toda, S Yamamoto, M Kobayashi, et al. Direct measurement procedure for three-dimensional local crack driving force using synchrotron X-ray microtomography. Acta Materialia, 2008, 56(20): 6027–6039 https://doi.org/10.1016/j.actamat.2008.08.022
37
H Cheng, F Yang, Z Wei. Potential failure modes and accelerating test strategy of burner. SAE International, 2012, 23: 16–21
38
J J Williams, K E Yazzie, E Padilla, et al. Understanding fatigue crack growth in aluminum alloys by in situ X-ray synchrotron tomography. International Journal of Fatigue, 2013, 57: 79–85 https://doi.org/10.1016/j.ijfatigue.2012.06.009
39
Q G Wang, D Apelian, D A Lados. Fatigue behavior of A356-T6 aluminum cast alloys. Part I. Effect of casting defects. Journal of Light Metals, 2001, 1(1): 73–84 https://doi.org/10.1016/S1471-5317(00)00008-0
40
N Dahdah, N Limodin, A El Bartali, et al. Damage investigation in A319 aluminum alloy by X-ray tomography and digital volume correlation during in situ high-temperature fatigue tests. Strain, 2016, 52(4): 324–335 https://doi.org/10.1111/str.12193
41
S Dezecot, J Y Buffiere, A Koster, et al. Characterization of damage in a cast aluminum alloy during cyclic loading test at high temperature by X-ray tomography. In: Proceedings of America’s Conference on Aluminum Alloys. Toronto: Metallurgy and Petroleum, 2015, 1–12
42
E Nizery, H J Proudhon, J Y Buffiere, et al. Three-dimensional characterization of fatigue-relevant intermetallic particles in high-strength aluminium alloys using synchrotron X-ray nanotomography. Philosophical Magazine, 2015, 95(25): 2731–2746 https://doi.org/10.1080/14786435.2015.1076940
43
S S Singh, J J Williams, P Hruby, et al. In situ experimental techniques to study the mechanical behavior of materials using X-ray synchrotron tomography. Integrating Materials and Manufacturing Innovation, 2014, 3(1): 9–22 https://doi.org/10.1186/2193-9772-3-9
44
G G Zhu. The application of aluminum alloy materials in automotive lightening. Light Metals, 2011, 8(10): 3–6
45
A Velhinho, P D Sequeira, R Martins, et al. X-ray tomographic imaging of Al/SiCp functionally graded composites fabricated by centrifugal casting. Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, 2003, 200: 295–302 https://doi.org/10.1016/S0168-583X(02)01691-9
46
D J Lloyd. Particle reinforced aluminum and magnesium matrix composites. International Materials Reviews, 1994, 39(1): 1–23 https://doi.org/10.1179/imr.1994.39.1.1
47
X Deng, N Chawla. Modeling the effect of particle clustering on the mechanical behavior of SiC particle reinforced Al matrix composites. Journal of Materials Science, 2006, 41(17): 5731–5734 https://doi.org/10.1007/s10853-006-0100-1
48
J Segurado, C A Gonzalez, J Llorca. A numerical investigation of the effect of particle clustering on the mechanical properties of composites. Acta Materialia, 2003, 51(8): 2355–2369 https://doi.org/10.1016/S1359-6454(03)00043-0
49
A Kumar, S Lal, S Kumar. Fabrication and characterization of A359/Al2O3 metal matrix composite using electromagnetic stir casting method. Journal of Materials Research and Technology, 2013, 2(3): 250–254 https://doi.org/10.1016/j.jmrt.2013.03.015
50
M De Giovanni, J M Warnett, M A Williams, et al. X-ray tomography investigation of intensive sheared Al-SiC metal matrix composites. Materials Characterization, 2015, 110: 258–263 https://doi.org/10.1016/j.matchar.2015.11.003
51
I G Watson, M F Forster, P D Lee, et al. Investigation of the clustering behaviour of titanium diboride particles in aluminum. Composites. Part A, Applied Science and Manufacturing, 2005, 36(9): 1177–1187 https://doi.org/10.1016/j.compositesa.2005.02.003
52
T Hirano, K Usami, Y Tanaka, et al. In situ X-ray CT under tensile loading using synchrotron radiation. Journal of Materials Research, 1995, 10(2): 381–386 https://doi.org/10.1557/JMR.1995.0381
53
A Ferre, S Dancette, E Maire. Damage characterisation in aluminum matrix composites reinforced with amorphous metal inclusions. Materials Science and Technology, 2015, 31(5): 579–586 https://doi.org/10.1179/1743284714Y.0000000619
54
F Chen, F Mao, Z N Chen, et al. Application of synchrotron radiation X-ray computed tomography to investigate the agglome-rating behavior of TiB2 particles in aluminum. Journal of Alloys and Compounds, 2015, 622: 831–836 https://doi.org/10.1016/j.jallcom.2014.10.190
55
N Chawla, J J Williams, R Saha. Mechanical behavior and microstructure characterization of sinter-forged SiC particle reinforced aluminum matrix composites. Journal of Light Metals, 2002, 2(4): 215–227 https://doi.org/10.1016/S1471-5317(03)00005-1
56
F de Andrade Silva, J J Williams, B R Müller, et al. Three-dimensional microstructure visualization of porosity and Fe-rich inclusions in SiC particle-reinforced Al alloy matrix composites by X-ray synchrotron tomography. Metallurgical and Materials Tran-sactions. A, Physical Metallurgy and Materials Science, 2010, 41(8): 2121–2128 https://doi.org/10.1007/s11661-010-0260-0
57
N Chawla, R S Sidhu. Microstructure-based modeling of deformation in Sn-rich (Pb-free) solder alloys. Journal of Materials Science Materials in Electronics, 2007, 18(1): 175–189
58
M A Dudek, N Chawla. Oxidation behavior of rare-earth-containing Pb-free solders. Journal of Electronic Materials, 2009, 38(2): 210–220 https://doi.org/10.1007/s11664-008-0544-y
59
P Hruby, S S Singh, J J Williams, et al. Fatigue crack growth in SiC particle reinforced Al alloy matrix composites at high and low R-ratios by in situ X-ray synchrotron tomography. International Journal of Fatigue, 2014, 68: 136–143 https://doi.org/10.1016/j.ijfatigue.2014.05.010
60
J J Williams, Z Flom, A A Amell, et al. Damage evolution in SiC particle reinforced Al alloy matrix composites by X-ray synchrotron tomography. Acta Materialia, 2010, 58(18): 6194–6205 https://doi.org/10.1016/j.actamat.2010.07.039
61
U K Vaidya, K K Chawla. Processing of fibre reinforced thermoplastic composites. International Materials Reviews, 2008, 53(4): 185–218 https://doi.org/10.1179/174328008X325223
N C Chapman, J Silva, J J Williams, et al. Characterisation of thermal cycling induced cavitation in particle reinforced metal matrix composites by three-dimensional (3D) X-ray synchrotron tomography. Materials Science and Technology, 2015, 31(5): 573–578 https://doi.org/10.1179/1743284714Y.0000000582
64
S C Wu, Y N Hu, H Duan, et al. On the fatigue performance of laser hybrid welded high Zn 7000 alloys for next generation railway components. International Journal of Fatigue, 2016, 91(1): 1–10 https://doi.org/10.1016/j.ijfatigue.2016.05.017
65
S C Wu, X Yu, R Z Zuo, et al. Porosity, element loss and strength model on softening behavior of hybrid laser arc welded Al-Zn-Mg-Cu alloy with synchrotron radiation analysis. Welding Journal, 2013, 92(3): 64–71
66
H Duan, S C Wu, Z W Xu, et al. Damage mechanism of hybrid welded 7020 aluminium alloy based on three-dimensional X-ray micro-tomography and GTN model. Chinese Journal of Lasers, 2016, 43(10): 1002005 https://doi.org/10.3788/CJL201643.1002005
67
S C Wu, Y N Hu, Y N Fu, et al. The weld fatigue cracking of aluminum alloys via in situ synchrotron radiation X-ray tomography. Transactions of the China Welding Institution, 2016, 36: 5–8
68
Y N Hu, S C Wu, S Q Zhang, et al. Three-dimensional X-ray microtomography based microstructure and mechanical performance of hybrid laser welded AA7020. Chinese Journal of Lasers, 2016, 43(1): 0103007 https://doi.org/10.3788/CJL201643.0103007
69
B Zhang, W Chen, D R Poirier. Effect of solidification cooling rate on the fatigue life of A356.2-T6 cast aluminium alloy. Fatigue & Fracture of Engineering Materials & Structures, 2000, 23(5): 417–423 https://doi.org/10.1046/j.1460-2695.2000.00299.x
