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| ELECTROCHEMICAL CORROSION BEHAVIOR OF Ni_3 Al(B)-BASED INTERMETALLIC COMPOUNDS INLi_2CO_3-K_2CO_3 MOLTEN SALT |
| Xu Songbo;Chen Junming(Shanghai Institute of Metallurgy; Chinese Academy of Sciences) |
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Abstract The electrochemical corrosion behavior of three intermotallic compounds,i.e.Ni3Al(B),Ni3Al(B)CrZr and Ni3Al(B)-Cr-Mg-RE,in 62 Li2CO3-38K2CO3(mol%)molten salt was studied.It was found thatthe anodic polarization curves of three Ni3Al(B) baSed alloys showed characteristiCS of active -passivetranspaseive stages, while two dual-phase Ni3Al(B)-Cr blloys exhibited an additional prepassiverange,similar to pure nickel, due to the contribution of Ni(M)phase.The potential range of passive statefor the alloys under study was-220~+240 mV(vs.Ag/AgCl).Based on the results of XRD and AES,thedissolution-oxide formation process at various potential stages was discussed respectively.
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Received: 25 June 1995
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Cite this article:
Xu Songbo;Chen Junming(Shanghai Institute of Metallurgy; Chinese Academy of Sciences). ELECTROCHEMICAL CORROSION BEHAVIOR OF Ni_3 Al(B)-BASED INTERMETALLIC COMPOUNDS INLi_2CO_3-K_2CO_3 MOLTEN SALT. J Chin Soc Corr Pro, 1995, 15(3): 161-166.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1995/V15/I3/161
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