【摘要】 针对国内某核电设备制造厂从多家原材料厂家采购的多批次核级不锈钢原材料在入厂复验时存在的晶间腐蚀不合格问题，从晶间腐蚀机理、原材料制造质量管控、采购技术条件以及检验操作和判定等方面进行原因分析，以找出导致该原材料入厂复验不合格的主要原因及各环节采购管理中可能存在的不足，从而为后续核电原材料的采购管理提供指导。更多还原

【Abstract】 In view of the unqualified intergranular corrosion of multiple batches of nuclear-grade stainless steel raw materials purchased by a domestic nuclear power equipment manufacturer from multiple raw material manufacturers during reinspection, the causes were analyzed from the aspects of intergranular corrosion mechanism, raw material manufacturing quality control, procurement technical conditions, inspection operation and judgment, etc. The pirpose is to find out the main reasons leading to the unqualified reinspection of the raw materials and the possible deficiencies in the procurement management of each link, so as to provide guidance for the subsequent procurement management of nuclear power raw materials.更多还原