| his research explored the effects of forging on changing the shape and distribution of MnS inclusions in steel, and their role as fatigue initiation sites. Billets, 5.0 in. in diameter and 9.7 in. high, of three heats of AISI 4140 steel were upset forged at 2200;Results indicate that the improvement in fatigue response due to inclusion shape control carries through after forging. At a normalized... |
