Corrigendum to “Fatigue cracking at twin boundaries: Effects of crystallographic orientation and stacking fault energy” [Acta Mater 60 (2012) 3113–3127]

Crack initiation at twin boundaries due to slip system mismatch

“…2). This characteristic feature of TBs related to slip transfer of dislocations was also investigated by Li et al [11], Qu et al [16] and Zhang et al [9,10]. These works systematically studied the effect of the crystallographic orientation on the cracking mechanisms at TBs.…”

“…Despite the proven strong influence of stress inhomogeneity due to the elastic anisotropy in the vicinity of GBs, several recent investigations have focused on a reduced and simple geometrical consideration of the slip systems on both sides of the boundary, as already described two decades ago [7,8]. Furthermore, the degree of accuracy with which this simple model can explain several aspects of CTB behavior is astonishing [9][10][11]. Finally, both the explicit computation of stress-strain incompatibilities and the reduced view of the slip system interaction originate from the crystallographic geometry as a result of the misorientation of both neighboring grains.…”

“…All TBs without cracks remained unconsidered. To identify the basics of the interaction between the relevant slip systems and the GBs, they defined a factor that describes the difference of the involved Schmid factors (DSF) DX [9,10]:…”

Damage Evolution in Al Wire Bonds Subjected to a Junction Temperature Fluctuation of 30 K

“…PSBs epitomise a form of localisation of plastic strain, especially that due to symmetrical cyclic deformation below 0.5 T m . 48,49 According to Zhang,48 fatigue cracks tend to occur where PSBs impinge on large-angle grain boundaries. Cracks may also initiate at sites where PSBs interact with voids or extraneous inclusions.…”

Difference in fatigue cracking behaviors of Cu bicrystals with the same component grains but different twin boundaries

“…In contrast, LAGBs, which permit dislocations to penetrate, show strong resistance to fatigue cracking but a weak strengthening effect [4,5]. Recent research has demonstrated that coherent twin boundaries (CTBs) can not only impede but also accommodate dislocation motion [6,7], showing tunable fatigue performance [8][9][10][11]. Usually, there are extensive steps bonded with CTBs which could be identified as incoherent twin boundaries (ITBs) and also play an important role in the mechanical properties of materials [12][13][14].…”