金属学报  1983, Vol. 19 Issue (4): 94-101

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熔体淬火条件下若干过渡金属在Ag中固溶度亚稳扩展的研究

宁远涛

冶金工业部贵金属研究所

METASTABLE EXTENSION OF SOLID SOLUBILITY OF CERTAIN TRANSITION METALS IN Ag UNDER MELT QUENCHING

by NING Yuantao (Institute of Precious Metals; Ministry of Metallurgical Industry Kunming) (Manuscript received 4 December; 1982)

宁远涛. 熔体淬火条件下若干过渡金属在Ag中固溶度亚稳扩展的研究[J]. 金属学报, 1983, 19(4): 94-101.
. METASTABLE EXTENSION OF SOLID SOLUBILITY OF CERTAIN TRANSITION METALS IN Ag UNDER MELT QUENCHING[J]. Acta Metall Sin, 1983, 19(4): 94-101.

摘要 参考文献 相关文章 Metrics 全文: PDF(599 KB)   摘要: 用点阵参数法测定了熔体淬火条件下过渡金属Fe,Co,Ni,Cr,Mn和Zr在Ag中固溶度的扩展。在10~5-10~6K/s冷却速度下,它们在Ag中亚稳极限固溶度C_(eq)~s分别为1.0,1.5,1.5,3.0,48和6at.-％。提出了不同的亚稳扩展机制,讨论了共晶系,包晶系和偏晶系三种类型Ag合金系亚稳扩展的规律,并用表面张力理论和元胞电子密度说明和描述了偏晶系合金液态溶解度和亚稳固溶度的规律。 Abstract：Metastable extension of solid solubility of transition metals, e.g. Fe, Co, Ni, Mn and Zr, in Ag under melt quenching was measured with lattice parameter method. Metastable solid solubility limit, C_(eq)~s, of these elements in Ag, under cooling rate about 10~5-10~6K/s, is 1.0, 1.5, 1.5, 3.0, 48 and 6.0 at.-％ respectively. Different mechanisms of the metastable extension was proposed. The metastable extension of 3 different kind of Ag alloy systems was discussed: eutectic system Ag-Zr; peritectic system of Ag with some simple metals and monotectic system of Ag with Fe, Co, Ni, Cr and Mn. Metastable extension of solid solubility of Zr in Ag is controlled by crystallizing rate of stable intermediate phase AgZr in liquid state. For A-A_mB_n, (or a(A)-A_mB_n) eutectic systems, the extension parameter C_(eq)s/C_(eu) is inversely proportional to the crystallizing rate of stable intermediate phase A_mB_n at eutectic composition C_(eu), and proportional to a parameter J=(C_m-C_(eu))/(C_(eu)-C_(eq)), where C_(eq) is equilibrium solid solubility, C_m is solute concentration of intermediate phase A_mB_n. For monotectic systems of Ag with transition metals Fe, Co, Ni, Cr and Mn, an immiscible gap exists in the liquid or undercooled melt, C_(eq)~s equals to the solute concentration corresponding to intersecting point of the boundary line of immiscible gap with solidus. C_(eq)~s as well as C_(eq)~1 are inversely proportional to parameter (n_(ws)~(1/3))_M/(n_(ws)~(1/3))_(Ag). For peritectic systems of Ag with simple metals, the electron compound with electron concentration e/a= 1.5 restrict further extension of solid solubility, this is the reason why the solid solubility of these systems extending up to the solute concentration with e/a=1.4. 收稿日期: 1983-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 宁远涛 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1983/V19/I4/94 1 Anantharaman, T.. R.; Suryanarayana, C., J. Mater. Sci., 6 (1971) , 1111． 2 Anantharaman, T. R.; Ramachandrarao, P.; Suryanarayana, C.; Lele, S.; Chattopadhyay, K., Trans. Indian Inst. Met., 30 (1977) . 425． 3 周新铭;靳嘉禄;宁运涛;赵钟民,金属学报,18(1982) ,534． 4 Pearson, W. B., A Handbook of Lattic Spacings and Structure of Metals and Alloys, Pergamon Press, London, 1958, p. 397． 5 Zielinski, P. G.; Matyja, H.; Rapid Quenched Metals, Section 1, Eds. Grant, N. J.; Gisscn, B. C., USA MIT. 1976, p. 237． 6 宁远涛,分子科学学报,1(1981) ,75． 7 Hanson, M; Anderko, K., Constitution of Binary Alloys, McGraw-Hill, New York, 1958, p.17, 33, 36, 66． 8 Nakagawa, Y., Acta Metall, 6 (1958) , 704． 9 Predel, B., ibid., 14 (1966) , 209． 10 Klement, W., Jr., Trans. Metall. Soc. AIME, 227 (1963) , 965． 11 Boom, R.; de Boer, F. R.; Miedema, A. R., J. Less-Common Met., 45 (1976) , 237; 46 (1976) , 271． 12 Uhlig, H. H., J. Phys. Chem., 41 (1937) , 1215． 13 陈念贻;张桂成,科学通报,3(1963) 68． 14 Miedema, A. R.; Boom, R., Z. Metallk., 69 (1978) , 183． 15 Miedema, A. R., ibid., 69 (1978) , 287． 16 Miedema, A. R.; Boom. R.; de Boer, F. R., J. Less-Common Met., 41 (1975) , 283 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed