Evaluation of Acoustic Emission Weld Monitoring for Coal-Gasification Vessels. Interim Technical Progress Report, September 1979-December 1980

摘要

This report covers work in the first phase of a program to evaluate the application of acoustic emission weld monitoring to narrow gap hot wire GTAW welding of A387 steel for field construction of coal gasification vessels. During the first phase, AE monitoring of hot wire, narrow gap GTAW welding was conducted at Westinghouse. This work was accomplished in a GARD developed, microprocessor-based acoustic emission weld monitor. The weld that was monitored was intended to be free of flaws and AE results confirmed this. Post-weld NDE and metallography substantiated the absence of flaws. (ERA citation 06:023020)