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The aim of the present study is to characterize mainly fracture toughness as well as the other mechanical properties of austempered ductile iron produced using both single-step and two-step austempering processes. The effect of alloying with Ni and Mo has been investigated. Austempering heat treatment was conducted at temperatures between 260°C and 390°C. Plane strain fracture toughness was evaluated...
A comparative study of the effects of a tungsten electrode type on the hot cracking susceptibility of alloy 800 has been carried out. The work was carried out with a conventional electrode (W ThO 2 ) and other electrodes containing additions of La 2 O 3 , CeO 2 and Y 2 O 3 . The varestraint cracking test was used out to assess the effect of tungsten...
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