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Hot corrosion behavior of porous nickel-based alloys containing molybdenum in the presence of NaCl at 750 degrees C
Chen, Lingyun1,2; Lan, Hao2; Huang, Chuanbing2; Yang, Bin1,3; Du, Lingzhong2; Zhang, Weigang2
2017-09-01
发表期刊ENGINEERING FAILURE ANALYSIS
ISSN1350-6307
卷号79期号:SEP页码:245-252
摘要

The hot corrosion of porous Ni-23Cr-xMo (0%, 4.5%, 9.0%, 13.5%, mass fraction) alloys tested at 750 degrees C under cyclic procedure was investigated in order to elucidate the effect of Mo addition on hot corrosion in the presence of NaCl. The hot corrosion experiments were performed at 750 degrees C in air with 4 mg cm(-2) NaCl deposit. The performance of the alloys was evaluated by the results of weight change kinetics. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS) were used to characterize the corrosion products. The results indicate that NaCl accelerated the oxidation of the alloys by chloridized elements Mo and Cr. Among the porous Ni-23Cr-xMo alloys, Ni-23Cr-9Mo alloy exhibited the best hot corrosion resistance due to the formation of NiO-NiCr2O4-Cr2O3 oxide scales. Furthermore, these oxide scales were confirmed more effective to protect the alloys after adding of Mo.

关键词Nicrmo Hot Corrosion Oxidation Nacl
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.engfailanal.2017.05.009
收录类别SCI
语种英语
关键词[WOS]HIGH-TEMPERATURE ; WATER-VAPOR ; OXIDATION ; COATINGS
WOS研究方向Engineering ; Materials Science
WOS类目Engineering, Mechanical ; Materials Science, Characterization & Testing
项目资助者National Natural Science Foundation of China(51471159 ; 51671180)
WOS记录号WOS:000405538800021
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22851
专题多相复杂系统国家重点实验室
作者单位1.Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Lab Particle Sci & Engn, Beijing 100190, Peoples R China
3.Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China
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GB/T 7714
Chen, Lingyun,Lan, Hao,Huang, Chuanbing,et al. Hot corrosion behavior of porous nickel-based alloys containing molybdenum in the presence of NaCl at 750 degrees C[J]. ENGINEERING FAILURE ANALYSIS,2017,79(SEP):245-252.
APA Chen, Lingyun,Lan, Hao,Huang, Chuanbing,Yang, Bin,Du, Lingzhong,&Zhang, Weigang.(2017).Hot corrosion behavior of porous nickel-based alloys containing molybdenum in the presence of NaCl at 750 degrees C.ENGINEERING FAILURE ANALYSIS,79(SEP),245-252.
MLA Chen, Lingyun,et al."Hot corrosion behavior of porous nickel-based alloys containing molybdenum in the presence of NaCl at 750 degrees C".ENGINEERING FAILURE ANALYSIS 79.SEP(2017):245-252.
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