一、前言众所周知,氢是低合金钢和高强度钢产生低温焊接裂纹的主要原因。在石油炼制和石化工业中,有许多类型的装置是在严重的氢环境中运行。工艺过程流体中的氢渗入设备的钢材,使之脆化并发生不同形式的破坏。例如奥氏体不锈钢堆焊层和基体金属之间的剥离开裂。在湿硫化氢环境下,碳素钢中的氢诱导开裂,以及高温高压下,氢对碳钢和低合金钢的侵蚀等。另外,在一定条件下,氢能使材料的韧性显著下降。当高温高压贮存液态 First, the preamble As we all know, hydrogen is low alloy steel and high strength steel to produce low temperature welding cracks the main reason. In the petroleum refining and petrochemical industries, there are many types of devices that operate in severe hydrogen environments. Hydrogen in the process fluid infiltrates into the steel of the equipment, embrittling it and damaging it differently. Such as peel cracking between the austenitic stainless steel overlay and the base metal. Hydrogen sulfide in carbon steel induces cracking in wet hydrogen sulfide environments, as well as hydrogen attack on carbon and low alloy steels at high temperatures and pressures. In addition, under certain conditions, hydrogen can significantly reduce the toughness of the material. When high temperature and high pressure liquid storage