胺液吸收塔主材质为16MnR，是一种低合金高强度钢，其低温焊接性较差。通过采取焊前预热、控制焊接线能量和层间温度、焊后保温缓冷等......

This research intends to find out the optimal mechanical properties of AISI 4130 steel welded by the GTAW process. Six t......