K. SurekhaA. Els-BotesTransactions of the Indian Institute of MetalsK. Surekha andA. Els-Botes, "Effect of Cryotreatment on Tool Wear Behaviour of Bohler K390 and AISI H13 Tool Steel During Friction Stir Welding of Copper", Transactions of The Indian Institute of Metals, Vol. 65, No. 3...