镍包覆Y2O3颗粒弥散强化镍基高温合金的抗热腐蚀性能
Hot Corrosion Resistance of Ni Coated Y2O3 Powders Dispersion Strengthened Nickel-Based Superalloy
摘 要
为改善Hastelloy X合金的抗热腐蚀性能, 通过化学镀镍法制备了镍包覆Y2O3颗粒, 并以之为弥散强化相, 以Hastelloy X合金为基体相, 制备了质量分数为5%的镍包覆Y2O3颗粒弥散强化高温合金, 然后在其表面涂覆由75%Na2SO4和25%NaCl组成的混合盐溶液, 在850 ℃下进行热腐蚀试验, 并将其与基体合金、普通Y2O3增强合金进行对比。结果表明: 镍包覆Y2O3颗粒能更加均匀地弥散于基体中, 均匀弥散的Y2O3颗粒可为Cr2O3提供形核位置, 促进保护性氧化膜Cr2O3的形成; 同时镍包覆Y2O3颗粒还能提高氧化膜的附着力, 阻碍氧化膜剥落, 改善基体合金的抗热腐蚀性能。
弥散强化
热腐蚀
Ni coated Y2O3 powder
dispersion strengthen
hot corrosion
Abstract
In order to improve hot corrosion resistance of Hastelloy X alloy, the Ni coated Y2O3 powders were prepared by electroless nickel plating method, and then taking them as dispersion phase and Hastelloy X particles as substrate to prepare a dispersion strengthened nickel-based superalloy. A salt solution, including 75wt% Na2SO4 and 25wt% NaCl, were coated on the alloy and following hot corrosion test at 850 ℃. The hot corrosion resistance of the alloy, substrate alloy and ordinary Y2O3 strengthened alloy were compared. The result show that nickel plating could make Y2O3 particles uniform dispersion in the substrate, dispersed Y2O3 particles acted as heterogeneous nucleation sites for Cr2O3, boosting the formation of a protective Cr2O3 oxide scale. At the same time, Ni coated Y2O3 particles could promote the adhesive force of oxide scale, impede the spallation of oxide scale, and enhanced hot corrosion resistance of substrate alloy.
中图分类号 TG146.1
所属栏目 材料性能及其应用
基金项目 高等学校博士点专项科研基金资助项目(20080480032); 国家自然科学基金重点资助项目(50634060)
收稿日期 2012/10/24
修改稿日期 2013/8/25
网络出版日期
作者单位点击查看
备注孔涛(1986-), 男, 湖北孝感人, 硕士研究生。
引用该论文: KONG Tao,XIONG Wei-hao,ZHANG Zhi-li,LI Xiao-feng. Hot Corrosion Resistance of Ni Coated Y2O3 Powders Dispersion Strengthened Nickel-Based Superalloy[J]. Materials for mechancial engineering, 2013, 37(11): 43～48
孔涛,熊惟皓,张志力,李小峰. 镍包覆Y2O3颗粒弥散强化镍基高温合金的抗热腐蚀性能[J]. 机械工程材料, 2013, 37(11): 43～48
被引情况:
【1】孙端君,梁春园,尚金龙,赖灿伟,尹继辉,宋亚茹,张修海, "Y2O3含量对Ni-20Cr-5Al合金高温抗氧化性能的影响",机械工程材料 40, 34-37(2016)
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【3】HAYAMA A O F, SANDIM H R Z, LINS J F C, et al. Annealing behavior of the ODS nickel-based superalloy PM 1000[J].Materials Science and Engineering: A, 2004, 371: 198-200.
【4】LIU L, LI Y, WANG F H. Influence of nanocrystallization on passive behavior of Ni-based superalloy in acidic solutions[J].Electrochimica Acta, 2007, 52: 2392-2400.
【5】LEI Z, ZHANG M C, DONG J X. Hot corrosion behavior of powder metallurgy Rene95 nickel-based superalloy in molten NaCl-Na2SO4 salts[J].Materials and Design, 2011, 32: 1981-1989.
【6】LI Wei-jie, LIU Yong, WANG Yan, et al. Hot corrosion behavior of Ni-16Cr-xAl based alloys in mixture of Na2SO4-NaCl at 600 ℃[J].Transaction of Nonferrous Metals Society of China, 2011, 21: 2617-2625.
【7】SHA W, BHADESHIA H K D H. Characterization of mechanically alloyed oxide dispersion-strengthened Nickel-base superalloy MA760[J].Metallurgical and Materials Transactions: A, 1994, 25: 705-714.
【8】陈文婷, 熊惟皓, 张修海. Y2O3含量和烧结温度对ODS镍基合金性能的影响[J].稀有金属材料与工程, 2010, 39(1): 112-116.
【9】黄培云.粉末冶金原理[M].北京: 冶金工业出版社, 2008: 396-400.
【10】章林, 曲选辉, 何新波, 等.ODS镍基超合金的研究进展[J].材料工程, 2010(6): 90-96.
【11】熊惟皓, 李俊, 李小峰.轻质化MA/ODS镍基高温合金高温氧化行为[J].华中科技大学学报: 自然科学版, 2011, 39(6): 106-110.
【12】赵士阳, 张国赏, 魏世忠, 等.化学镀镍对Al2O3颗粒增强复合材料制备及耐磨性的影响[J].矿山机械, 2008, 36(20): 25-28.
【13】田素贵, 卢旭东, 孙振东.高Cr镍基合金的高温内氧化和内氮化行为[J].中国有色金属学报, 2012, 22(2): 408-415.
【14】傅献彩, 沈文霞, 姚天扬.物理化学[M].北京: 高等教育出版社, 2006: 483-486.
【15】宁礼奎.四种镍基高温合金的抗热腐蚀性能研究[D].大连: 大连理工大学, 2008: 16-19.
【16】李云, 郭建亭, 袁超, 等.镍基铸造高温合金K35的热腐蚀行为[J].中国腐蚀与防护学报, 2005, 25(4): 250-255.
【17】付广艳, 刘群, 门冰洁, 等.机械合金化Ni-20Cr合金的热腐蚀行为[J].腐蚀科学与防护技术, 2006, 18(6): 396-399.
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