Modified steels for cold-forming U-Bolts used in leaf springs systems - Ventura, Jaime Milan; Castro, Danilo Borges Villarino de; Ruckert, Cassius Olívio Figueiredo Terra; Maluf, Omar; Bose Filho, Waldek Wladimir; Spinelli, Dirceu (Journal of Materials Engineering and Performance, 2009)