Thermit welds in flat bottom rail. Results of fatigue & tup tests (E-153)

During the autumn of 1956 the Metallurgy Division of the Research department made a radiographic inspection of some thermit welds in on experimental length of F.B. track at Cheddington, L.M.R. (Wet. Div. Report No. M.W.17 ). Numerous defects ware discovered as a result of which it was feared that the...