Corrigendum to “The effects of lamellar features on the fracture toughness of Ti-17 titanium alloy” [Mater. Sci. Eng. A 636 (2015) 543–550] (S0921509315004189) (10.1016/j.msea.2015.04.021))

The authors regret 1. Fig. 3 should be replaced by the following figure. 2. In section 3.3, the text Ragozin et al. [28] had established a model correlating fracture toughness and tensile properties by considering the effect of crack tip plasticity on fracture toughness, as shown in Eq. (1). [Figure presented] where [Formula presented] is the specific work of uniform deformation and can be approximated by Eq. (2). [Formula presented] is Young's modulus and [Formula presented] is Possion's ratio. [Figure presented] where [Formula presented] is the uniform elongation of the tensile specimen. Eq. (1) had considered the intrinsic contribution (crack tip plasticity) to fracture toughness. However, the extrinsic contribution caused by crack path tortuosity was neglected. Based on the research by Jiang [29], the extrinsic contribution caused by crack path tortuosity can be considered by multiplying a magnification factor to Eq. (1), as shown in Eq. (3). [Figure presented] where [Formula presented] and [Formula presented] are the irregular and straight-path lengths of the crack propagation, respectively. [Formula presented] is the yardstick of the measurement. Eq. (3) can be transformed into Eq. (4), which is favorable to better understand the respective contribution of the intrinsic and extrinsic parts to fracture toughness. [Figure presented] is too long and needless to describe. Above sentences should be replaced by “Based on the brilliant work of other researchers [28, 29], Shi et al. [30] had tentatively established a fracture toughness model considering both the intrinsic and extrinsic contributions, as shown in Eq. (1). [Formula presented](1)” Thus, in the following text, “Eq. (4)” should all be replaced by “Eq. (1)”. 3. The reference [30] should be [30] X.H. Shi, W.D. Zeng, C.L. Shi, et al., J. Alloy. Compd. 632 (2015) 748–755. Meanwhile, the original references [30], [31], [32] should be changed as [31], [32], [33]. The authors would like to apologise for any inconvenience caused.