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PWHT Smitweld TCS 1406 T/P P91 Weld thermal cycle simulation Weldability The paper presents application of weld thermal cycle simulator for investigations and data predictions after welding process and post weld heat treatment of base material. Along with basic description of thermal cycle simulator Smitweld TCS 1406 and influence of weld thermal cycle on mechanical properties and micro structure of base metal, the authors provided some practical data obtained on specimens after thermal simulation. This approach is often used for acceleration of weldability investigations combined with additional investigations (e.g. hardness and toughness determination, micro structure investigation, etc.) and other investigations (e.g. post weld heat treatment, casting, hot metal forming, etc.). With weld thermal cycle simulator it is possible to reduce duration and costs of production (e.g. investigations at PQR/WPAR, PWHT).

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