金属学报  1987, Vol. 23 Issue (5): 430-433

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铸造镍基高温合金中以Zr代Hf的研究

郑运荣;蔡玉林;阮中慈

北京航空材料研究所;北京航空材料研究所;中国科技导报社;北京航空材料研究所

INVESTIGATION OF Zr AS A SUBSTITUTE FOR Hf IN CAST Ni-BASE SUPERALLOYS

by ZHENG Yunrong; CAI Yulin; RUAN Zhongci(Institute of Aeronautical Materials; Beijing)(Manuscript received 6 June; 1986; revised manuscript 22 September; 1986)

郑运荣;蔡玉林;阮中慈. 铸造镍基高温合金中以Zr代Hf的研究[J]. 金属学报, 1987, 23(5): 430-433.
, , . INVESTIGATION OF Zr AS A SUBSTITUTE FOR Hf IN CAST Ni-BASE SUPERALLOYS[J]. Acta Metall Sin, 1987, 23(5): 430-433.

摘要 参考文献 相关文章 Metrics 全文: PDF(1439 KB)   摘要: <正> 曾经报道过加1.0％Zr改善定向铸造高温合金的中温力学性能.我们以前的工作也证明Zr和Hf在铸造镍基高温合金中的作用极为相似,本文进一步研究在上述合金中以Zr代Hf的可能性. Abstract：Zr promotes the formation of eutectic γ′, MC, Ni_5Zr and (Zr, Ti)_2 SC and stabilizes the microstructure of Ni-base superalloys at high temperatures as that Hf does.Furthermore, it enhances the mechanical properties of as-cast alloys at medium temperatures. But the efficiency of it is not as strong as Hf, because of its lower solubility in eutectic γ′. However, the solubility of Zr in Ni_5M is higher than that of Hf, it is helpful to the formation of Ni_5 M. This implies that one can not substitute Zr for Hf with same atomic fraction. Combination of Zr and Hf additive is beneficial to the mechanical properties of the alloys at medium temperatures. 收稿日期: 1987-05-18      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 郑运荣 蔡玉林 阮中慈 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I5/430 1 Duhl D N.USPO 3700433,1972 2 马淑琴,郑运荣,蔡玉林.金属学报,1981;17:522b No related articles found! Viewed Full text Abstract Cited   Shared      Discussed