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中国腐蚀与防护学报  1983, Vol. 3 Issue (4): 237-245    
  研究报告 本期目录 | 过刊浏览 |
碳对IN-738合金抗热腐蚀性能的影响
满永发;刘嘉乐;张匀;赵洪恩
中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所
THE EFFECT OF CARBON ON HOT CORROSION RESISTANCE OF IN-738 Ni-BASE ALLOY
Man Yongfa Liu Jiale Zhang Yun and Zhao Hongen(Institute of Metal Research; Academia Sinica; Shenyang)
全文: PDF(4811 KB)  
摘要: 用坩埚熔盐腐蚀方法研究了不同碳含量的IN-738合金的热腐蚀行为。并用金相、X-线衍射分析、电子探针、扫描电镜等方法对试验后样品的腐蚀表面进行了观察研究。结果表明:碳能明显地改善IN-738合金的热腐蚀抗力,特别是在800℃附近这种效果最为突出。当合金中碳含量低于0.1%时,随着合金中碳量的增加,合金的热腐蚀失重明显地减少,碳含量在0.1~0.2%之间,其改善作用逐渐减弱,当碳含量超过0.2%时进一步增碳,就几乎不再起什么作用了。初步讨论了试验结果,认为碳能阻碍碱性融蚀并促进富铬的氧化膜形成,是其有益作用的主要原因。
Abstract:The effect of carbon on hot corrosion behavior of IN-738 was studied with the fused-salt crucible method. Surfaces of corroded specimens have been examined by means of metallography, X-ray diffraction analysis, EPMA, SEM, etc. It was shown that carbon greatly improved the hot-corrosion resistance of IN-738, especially at about 800℃. When the carbon content was below 0.1%, improvement was most remarkable, between 0.1-0.2%, the effect decreased gradually, and beyond 0.2%, it had no further effect. Two possibilities are suggested to account for the beneficial effect of carbon: retardation of basic fluxing corrosion and promotion of formation of a Cr-rich protective oxide film.
收稿日期: 1983-08-25     

引用本文:

满永发;刘嘉乐;张匀;赵洪恩. 碳对IN-738合金抗热腐蚀性能的影响[J]. 中国腐蚀与防护学报, 1983, 3(4): 237-245.
. THE EFFECT OF CARBON ON HOT CORROSION RESISTANCE OF IN-738 Ni-BASE ALLOY. J Chin Soc Corr Pro, 1983, 3(4): 237-245.

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https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y1983/V3/I4/237

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