Abstract: This paper discusses the results of evaluations performed on service-aged piping using both conventional postweld heat treatments and temperbead repair techniques. The two repair weldments were ...

Abstract: Power plant piping operating at elevated temperatures is subject to several types of service aging-related degradation, such as softening, spheroidization, embrittlement, and creep. When cracks are ...

Abstract: The objective of this investigation was to evaluate the efficacy of different weld repair techniques as applied to service-aged 2-1/4Cr-1Mo steel weldments. A header which had been in service ...

Abstract: Weld repairs have been performed to 1-1/4Cr-1/2Mo steel girth weldments from a hot reheat pipe returned from service at 1000°F (538°C) for 244,000 h. Shielded metal arc weld (SMAW) ...