采用高能微弧合金化技术在K3合金表面制备了Ni3A1(Cr)涂层;对其制备工艺进行了优化,并对涂层在1 000 ℃下的氧化行为进行了研究.结果表明:用高能微弧合金化技术可在K3合金表面制备出微晶涂层,阳极材料采用铸态Ni3Al(Cr)金属间化合物所得涂层能够与基体形成冶金结合;在1 000 ℃下,所得涂层因晶粒细化可以在较短时间内生成连续保护性富铝/铬氧化膜,而铸态电极和K3合金不能形成连续致密的氧化膜,因此所得涂层比铸态Ni3Al(Cr)电极和K3合金具有更好的抗氧化性能,并且NiO和尖晶石的生成量也减少.
所属栏目
材料性能及其应用
收稿日期
2009/11/202010/9/5
作者单位
郭平义:江苏科技大学先进焊接技术省重点实验室, 镇江 212003中国科学院金属研究所金属腐蚀与防护国家重点实验室, 沈阳 110016
曾潮流:中国科学院金属研究所金属腐蚀与防护国家重点实验室, 沈阳 110016
邵勇:江苏科技大学先进焊接技术省重点实验室, 镇江 212003
备注
郭平义(1979-),女,江苏镇江人,讲师,博士.
引用该论文:
GUO Ping-yi,ZENG Chao-liu,SHAO Yong.Preparation of Ni3Al(Cr)Coating by High Energy Micro-arc Alloying and Its High Temperature Oxidation Resistance[J].Materials for mechancial engineering,2010,34(12):62～66
郭平义,曾潮流,邵勇.高能微弧合金化制备Ni3Al(Cr)涂层及其高温抗氧化性能[J].机械工程材料,2010,34(12):62～66
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