| 稀土对镍基耐蚀合金的组织和性能的影响 |
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| 引用本文： | 李隆盛,秦紫瑞,于勇. 稀土对镍基耐蚀合金的组织和性能的影响[J]. 大连理工大学学报, 1988, 0(2) |
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| 作者姓名： | 李隆盛 秦紫瑞 于勇 |
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| 作者单位： | 大连理工大学大连工学院(李隆盛，秦紫瑞)，大连理工大学大连耐酸泵厂(于勇) |
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| 摘 要： | 本文讨论了稀土元素用于改善铸造镍基耐蚀合金性能的可能性和效果。试验结果 表明，往镍基耐蚀合金中添加适量的稀土能明显地细化合金的晶粒，改善碳化物的形 态和分布，阻止碳化物的集聚，使夹杂物含量减少．改变夹杂物形态，使其细化．球 化和呈弥散分布，其结果是提高了耐蚀性能，而且还提高了强度和改善了切削加工性 能。
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| 关 键 词： | 钇添加合金 镍基合金 耐蚀合金 碳化物 非金属夹杂(金属缺陷) 晶粒细化 |
Influence of RE on the Structure and Property of Ni-Base Corrosion-Resistant Alloy |
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| Li Longsheng,Qin Zirui,Yu Yong. Influence of RE on the Structure and Property of Ni-Base Corrosion-Resistant Alloy[J]. Journal of Dalian University of Technology, 1988, 0(2) |
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| Authors: | Li Longsheng Qin Zirui Yu Yong |
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| Abstract: | The possibility and effectiveness of using RE elements to improve the properties of cast Ni-base corrosion-resistant alloys are discussed in this paper. Experimental results show that, by adding suitable amount of RE into Ni-base corrosion-resistant alloy, the grain size can be remarkably refined; the morphology and distribution of carbides can be improved, the agglomeration of carbides can b~ prevented, the amount of non-metallic inclusions can be minimized; the inclusions can be refined, granulated, and dispersively redistributed. The results mentioned above can enhance the corrosion-resistant property, while the strength and machinability can be improved as well. |
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| Keywords: | Yttrium additions alloys Nickel-base alloys corrosion resistant alloys carbide non-metallic inclusions grain refinement |
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