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金属学报  1981, Vol. 17 Issue (5): 522-602    
  论文 本期目录 | 过刊浏览 |
铸造镍基高温合金中Ni_5Zr的溶解和转变
马淑琴;郑运荣;蔡玉林
航空材料研究所;航空材料研究所;航空材料研究所
SOLUTION AND TRANSFORMATION OF Ni_5Zr IN CAST NICKEL-BASE SUPERALLOY
by Ma Shuqin; Zheng Yunrong and Cai Yulin(Institute of Aeronautical Materials)
引用本文:

马淑琴;郑运荣;蔡玉林. 铸造镍基高温合金中Ni_5Zr的溶解和转变[J]. 金属学报, 1981, 17(5): 522-602.
, , . SOLUTION AND TRANSFORMATION OF Ni_5Zr IN CAST NICKEL-BASE SUPERALLOY[J]. Acta Metall Sin, 1981, 17(5): 522-602.

全文: PDF(2255 KB)  
摘要: 本文用示差热分析和金相分析相配合的方法,研究了添加Zr的铸造镍基高温合金中Ni_5Zr相的溶解和转变。Ni_5Zr的存在显著地降低合金的初熔温度并诱发(γ+γ′)共晶的溶解。在850℃以上高温热暴露时Ni_5Zr发生如下转变: Ni_5Zr+γ(C)—→ZrC+γ 试验结果证明示差热分析技术在高温合金相变研究中是一种有用的工具。
Abstract:Studies were made of the solution and transformation of intermetallic compound Ni_5Zr in Zr-bearing cast Ni-base superalloy and of effect of the Zr addition on the microstructure by DTA together with metallographic observation. The occurrence of Ni_5Zr in the superalloy may markedly decrease the incipient melting temperature and induce the solution of γ+γ′eutectic. Under high temperature exposure above 850℃, Ni_5Zr with γ (C) is transformed into ZrC and γ, which is bound to be reflected in DTA.
收稿日期: 1981-05-18     
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[2] 航空材料研究所,未发表资料.
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