Page 361 - Challenges in Corrosion Costs Causes Consequences and Control(2015)
P. 361

CORROSION DAMAGE, DEFECTS, AND FAILURES                         339



















                            20 μm

                                            (a)





















                                            20 cm

                                            (b)
            Figure 5.13 (a) Fatigue striations on fractured surface (19). (b) Outer surface of wing panel
            and door after paint stripping and removal of catches (19).



            (>1100 MPa) hydrogen embrittlement (HE) occurs, but can be minimized by baking
                 ∘
            at 175 C for 24 h or by treatment with 1:1:1 mixture of nitric, acetic, and phosphoric
            acids.


            5.3.7.4.5  Premature Failure of Tie Rods of a Suspension Bridge Tie rods of a
            newly built suspension bridge in service for only 6 winter months at temperature
                ∘
            −20 C failed because of cleavage and lack of low-temperature toughness of the steel.
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