Study on J-integral with SENB specimens in a condenser material

Abstract

A series of tests was performed with three-point single-edge-notched-bend (SENB) specimens in a condenser material (Titanium alloy). Results show that the J-integral values of welded joint and HAZ are obviously smaller than those of the base metal. It signifies that the welding process can result in a reduced toughness of Titanium alloy and the effect of crack orientation on toughness value is not negligible for engineering applications. Besides, the J-integral values of L-T direction specimens are much higher than those of L-S ones. The J-integral values of rolled ring are: J_C-R>J_C-L>J_L-R.

Keywords

condenser material / Ti-alloy / J-integral / welding process / crack orientation