工业技术的发展对材料不断地提出各种新要求,含镍马氏体时效钢,虽然具有高强度、高韧性、热处理简单、尺寸稳定、焊接性能和工艺性能良好等优点,但由于耐蚀性差而限制了它们的应用。六十年代问世的马氏体时效不锈钢既保留了含镍马氏体时效钢的优点,又具有不锈钢的抗腐蚀性能。这类钢与马氏体不锈钢相比,具有塑韧性高、焊接性能好、易加工成型等优点;与半奥氏体沉 Despite the advantages of high strength, high toughness, simple heat treatment, dimensional stability, good welding performance and good process performance, due to the poor corrosion resistance, the martensite-aged steel containing nickel has many advantages and disadvantages. Which limits their use. Martensite-aged stainless steel, introduced in the 1960s, not only retains the advantages of nickel-containing martensite-aged steel, but also possesses the corrosion resistance of stainless steel. Compared with martensitic stainless steel, this type of steel has the advantages of high plasticity and toughness, good welding performance and easy processing and shaping. Compared with the semi-austenitic