以7249高强铝合金为研究对象,通过OM、晶间腐蚀及剥落腐蚀测定等测试手段,分析探讨了稀土Ce添加量对7249铝合金晶间腐蚀及剥落腐蚀性能的影响.结果表明:当稀土的添加量为0.03 mass％时,试样的晶间腐蚀最大深度仅为31.22 μm,较未添加稀土时减小了30％左右;同时剥蚀等级由EC级提升为EA-级,7249铝合金的耐晶间腐蚀及剥落腐蚀性能在添加稀土适量Ce后均得以明显提高.
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