摘要
研究了直接时效和形变时效对Fe14.51Mn6.02Si9.10Cr5.06Ni1.49Ti0.16C合金第二相析出行为、耐磨性和耐蚀性的影响。结果表明:该合金在固溶态的耐磨性能高于1Cr18Ni9Ti不锈钢的;直接时效和形变时效能提高合金的耐磨性,后者的效果更好,特别是在大载荷下;与直接时效相比,形变时效后在基体中除析出σ相外还析出了大量的Cr23C6相,因而形变时效降低了合金在NaCl溶液中的耐蚀性,但对在NaOH溶液中的耐蚀性影响不大;直接时效对该合金耐蚀性的降低不显著。
The effects of direct-aging and strain-aging on the precipitation behavior of second-phase, wear resistance and corrosion resistance were studied in a Fel4. 51Mn6. 02Si9. 10Cr5. 06Nil. 49Ti0. 16C alloy. The results show that the wear resistance of solid-solution treated alloys was better than that of 1Cr18Ni9Ti stainless steel. The wear resistance of alloy could be improved by direct-aging and strain-aging, the latter was better, especially under the condition of heavy load. Compared with direct-aging, a lot of Cr23 C4 phase precipitated in matrix besides o phase after strain-aging, so corrosion resistance of the alloy became worse in NaC1 solution after strainaging, but unchanged in NaOH solution, and the direct-aging didn＇t decreased corrosion resistance of the alloy obviously.
出处
《机械工程材料》
CAS
CSCD
北大核心
2011年第12期10-14,共5页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(50871072
50971095)
四川省青年基金资助项目(2010A01-436)
