减少Cr-Ni双相钢铸件热裂纹与提高抗腐蚀性能的讨论

摘要

分析了Cr-Ni双相钢铸件在生产中常出现热裂纹及杭腐蚀性能降低的原因,并提出了解决方法.通过调整主要元素的化学成分,调整主要工艺参数和方案,优化奥氏体和铁素体两相比例,有效减少了Cr-Ni双相钢铸件的热裂纹并提高了产品的抗腐蚀能力.%Reasons for thermal cracks and corrosion resistance reduction in casting Cr-Ni dual-phase steel were analyzed, and the solutions were put forward.Through adjusting chemical compositions of the key elements, modifying process parameters or scheme, and optimizing austenite/ferrite phase ratio, the thermal cracks were reduced effectively and corrosion resistance was improved.