Concurrent formation of two different type precipitation-free zones during the initial stage of homogenization

Chen, Y.Q.; Yi, Danqing; Jiang, Yiming; Wang, B.; Liu, H.Q.

doi:10.1080/14786435.2013.766371

Cited by 11 publications

(2 citation statements)

References 29 publications

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“…So that the solution atoms and vacancies in Zone II will diffuse into Zone I, leading to the reduction of the concentration of solution atoms and vacancies in Zone II. Additionally, there are no more dislocations for nucleation in this zone compared to others, so the precipitation in this zone is inhibited [26][27][28][29]. During aging, there is hardly any S precipitate in Zone II, and the 14 solution atoms in Zone II are likely to diffuse to the other zones such as Zone I to precipitate, which prolongs the time for precipitation.…”

Section: Three Precipitation Zones In Compositesmentioning

confidence: 99%

Effects of TiB2 particles on aging behavior of in-situ TiB2/Al–Cu–Mg composites

Tang

Wang

et al. 2015

Materials Science and Engineering: A

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Section: Three Precipitation Zones In Compositesmentioning

confidence: 99%

Effects of TiB2 particles on aging behavior of in-situ TiB2/Al–Cu–Mg composites

Tang

Wang

et al. 2015

Materials Science and Engineering: A

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“…The fatigue damage process can be usually divided into three major phases [2,3]: (a) crack initiation, (b) short fatigue crack propagation, and (c) subsequent propagation of long fatigue crack. Recent studies revealed that loading conditions and physical metallurgical properties of the alloy have significant influence on fatigue crack's initiation and propagation process [4][5][6][7]. Maduro et al [8] observed that the exponential model can describe more adequately the FCG behavior of 2000 series alloy in relation to load ratio, pre-strain effects and crack plane orientation.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Evolution Process of Short Fatigue Crack in 2A12 Alloy under Complex Stress State

Liu

Wang

Zheng

2016

KEM

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The fatigue behavior of 2A12 Aluminum alloy was experimentally studied through different annular notched specimens under symmetrical triangle with the frequency of 0.5 Hz. The experimental result showed that the microstructure played an important role during the entire fatigue life of 2A12 Aluminum alloy. The short fatigue crack only initiated due largely to the second-phase particle such as the S phase (Al2CuMg), the θ phase (CuAl2) and especially the black impurity phases debonding from the basal body when the fatigue cycle was sufficient. The cracks propagated separately along the circumferential direction of the notch, crack coalescence and interaction of cracks were not common at early and middle stage of short crack’s fatigue life. Cracks tended to propagate along direction different from the original one after crack coalescence. Surface crack length at early and middle stage of short crack’s fatigue life were presented. These curves showed crack growth rate increased relatively as the reducing of notched radius or the increasing of nominal strain amplitude which implied that geometry and loading conditions were the factors of the crack propagation.

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