Production process for improving hydrogen embrittlement resistance of stainless steel hydrogen storage equipment

• Main Authors: ZHAI HAIPING, ZHOU HONGYU, DONG JILIN
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2023
• Subjects: ALLOYS; CHEMISTRY; COMBINED OPERATIONS; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MACHINE TOOLS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; UNIVERSAL MACHINE TOOLS

The invention provides a production process for improving the hydrogen embrittlement resistance of stainless steel hydrogen storage equipment. The production process comprises the following steps of S1, double-vacuum smelting, S2, forging, S3, hot rolling, S4, cold rolling, S5, solution treatment, S6, welding forming, S7, annealing treatment, S8, polishing treatment and S9, coating treatment. According to the production process for improving the hydrogen embrittlement resistance of the stainless steel hydrogen storage equipment, the number and size of strong hydrogen traps in stainless steel are effectively reduced, the hydrogen-induced crack initiation probability is reduced, grain refinement of an austenite structure is achieved, hydrogen-induced ductility loss is reduced, and the hydrogen embrittlement resistance of the hydrogen storage equipment is greatly improved. 本发明提供一种提高不锈钢储氢设备抗氢脆性能的生产工艺，包含以下步骤：S1双真空冶炼、S2锻造、S3热轧、S4冷轧、S5固溶处理、S6焊接成型、S7退火处理、S8抛光处理、S9涂层处理。本发明的一种提高不锈钢储氢设备抗氢脆性能的生产工艺，有效降低了不锈钢中的强氢陷阱数量和尺寸，降低了