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| SELECTIVE ANODIC DISSOLUTION PROCESS OF M23C6 IN A Ni-BASE SUPERALLOY |
| by ZHANG Jianzhong; WANG Jingyun (Institute of Metal Research; Academia Sinica; Shenyang) (Manuscript received 23 July; 1986.; revised manuscript 13 February; 1987) |
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Cite this article:
by ZHANG Jianzhong; WANG Jingyun (Institute of Metal Research; Academia Sinica; Shenyang) (Manuscript received 23 July; 1986.; revised manuscript 13 February; 1987). SELECTIVE ANODIC DISSOLUTION PROCESS OF M23C6 IN A Ni-BASE SUPERALLOY. Acta Metall Sin, 1987, 23(6): 568-574.
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Abstract The particles of M_(23)C_6 precipitate in Ni-base superalloy M17G were selectively dissolved in an aqueous solution of 12％(NH_4)_2SO_4 (pH-value was adjusted to 9) in the potential range of +200 to +800 mV (S. C. E.). The anodie dissolution process has been investigated in terms of potential-sweep and potential-step polarization techniques. For the finely dispersive phase in the alloy, a new model has been developed to describe the selective anodic dissolution process, which is eontrolled by electrochemical polarization.
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Received: 18 June 1987
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5 马翔.分析化学,1984;12(6) 496
6 傅岩松.浸蚀定量法在耐热钢相分析中的应用及其理论基础探讨,金属研究所硕士学位论文,1985 |
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