Ti-Al和Ti-Al-Ce复合改性剂对高硼铁基耐磨合金组织和性能的影响
发布时间：2019-01-27 22:04
【摘要】：研究Ti-Al和Ti-Al-Ce两种复合改性剂对高硼铁基耐磨合金组织和性能的影响。采用X射线衍射仪(XRD)、金相显微镜(OM)、扫描电子显微镜(SEM)、硬度测试仪和摩擦磨损试验机等分析合金的组织结构和性能,结果表明:Ti-Al和Ti-Al-Ce的添加都能很好地破坏共晶硼化物的连续网状结构,改善硼化物的形貌、尺寸和分布情况,其中Ce添加后改善效果更加明显。热处理后合金硬度出现小幅度的减小,但硬度都在60HRC以上,改性处理显著提高高硼铁基耐磨合金的冲击韧性和耐磨性能,冲击韧性最高可达15.2 J/cm~2,并表现出很好的耐磨性能。
[Abstract]:The effect of Ti-Al and Ti-Al-Ce composite modifiers on the microstructure and properties of high boron iron base wear resistant alloy was studied. The microstructure and properties of the alloy were analyzed by means of X-ray diffractometer (XRD), metallographic microscope (OM), scanning electron microscope (SEM), hardness tester and friction and wear tester. The results show that the addition of Ti-Al and Ti-Al-Ce can destroy the continuous network structure of eutectic boride and improve the morphology, size and distribution of boride. The effect of Ce addition is more obvious. After heat treatment, the hardness of the alloy decreased slightly, but the hardness of the alloy was above 60HRC. The impact toughness and wear resistance of the high boron iron-base wear resistant alloy were significantly improved by the modified treatment. The highest impact toughness of the alloy was 15.2J / cm ~ (-2). And show a very good wear resistance.
【作者单位】： 南京工业大学材料科学与工程学院;南京工业大学材料化学工程国家重点实验室;
【基金】：教育部长江学者和创新团队发展计划资助项目(IRT1146)~~
【分类号】：TG135.6
，
本文编号：2416743
[Abstract]:The effect of Ti-Al and Ti-Al-Ce composite modifiers on the microstructure and properties of high boron iron base wear resistant alloy was studied. The microstructure and properties of the alloy were analyzed by means of X-ray diffractometer (XRD), metallographic microscope (OM), scanning electron microscope (SEM), hardness tester and friction and wear tester. The results show that the addition of Ti-Al and Ti-Al-Ce can destroy the continuous network structure of eutectic boride and improve the morphology, size and distribution of boride. The effect of Ce addition is more obvious. After heat treatment, the hardness of the alloy decreased slightly, but the hardness of the alloy was above 60HRC. The impact toughness and wear resistance of the high boron iron-base wear resistant alloy were significantly improved by the modified treatment. The highest impact toughness of the alloy was 15.2J / cm ~ (-2). And show a very good wear resistance.
【作者单位】： 南京工业大学材料科学与工程学院;南京工业大学材料化学工程国家重点实验室;
【基金】：教育部长江学者和创新团队发展计划资助项目(IRT1146)~~
【分类号】：TG135.6
，
本文编号：2416743
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