|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Oil and Gas and AMREE Oil & Gas III
||Investigation on the Weldability of High-strength Steels Used for Low Temperature Environment
||Chengjia Shang, Xuelin Wang
|On-Site Speaker (Planned)
In modern pipeline construction, architectural engineering and offshore engineering steels more often high-strength steels are required to provide higher energy and cost efficiencies. Therefore, in the recent years steel producers developed various high strength base materials and filler metals. These high performance steels are currently produced either by thermo-mechanical controlled process (TMCP) or by traditional quenching-tempering (Q-T) process. However, irrespective of the production method, the weldability is an important aspect of concern, especially low temperature toughness. The requirements to the mechanical properties of the weld increase, the demands on the component safety are becoming increasingly important. Thus, our present works are focused on the development of welding wires used for submerged arc welding (SAW) with excellent low-temperature toughness, the effect of welding process parameters on the microstructure and properties of multi-pass weld metal and the influence of new designed post-weld heat treatment (PWHT) on the comprehensive performance of weld joint.
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