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材料研究学报  2009, Vol. 23 Issue (1): 98-102    
  研究论文 本期目录 | 过刊浏览 |
一种含铼多晶铸造高温合金的凝固行为
韩帅; 赵锴; 楼琅洪
中国科学院金属研究所  沈阳 110016
Solidification behavior of a nickel-base Re-containing superalloy for conventional casting
HAN Shuai;  ZHAO Kai;  LOU Langhong
Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016
引用本文:

韩帅 赵锴 楼琅洪. 一种含铼多晶铸造高温合金的凝固行为[J]. 材料研究学报, 2009, 23(1): 98-102.
. Solidification behavior of a nickel-base Re-containing superalloy for conventional casting[J]. Chin J Mater Res, 2009, 23(1): 98-102.

全文: PDF(792 KB)  
摘要: 

在多晶铸造高温合金中加入铼并观察其铸态组织, 发现在(γ+γ') 共晶附近有μ相和类树枝晶 γ' 相析出, 测定合金中各种相的形成顺序和共晶反应偏析, 分析了初生μ相和类树枝晶γ'相的形成机理, 研究了Re在多晶铸造高温合金凝固过程中的作用和对合金凝固组织的影响.

关键词 金属材料含铼多晶高温合金凝固共晶反应偏析类树枝晶γ    
Abstract

The solidification behavior and as-cast microstructure feature of a nickel-base Recontaining superalloy for conventional casting have been investigated. The results show that because of the adding of Re, the (γ+γ') eutectic temperature, MC carbide formation temperature and γ' precipitating temperature are increased, and the eutectic reaction segregation as well as solidification segregation is enhanced. There is a eutectic reaction segregation region around eutectic caused by eutectic forming. The pseudo-dendritic γ'  precipitates form, resulting from latent heat of eutectic reaction and impact of Re in γ'  precipitating temperature together.

Key wordsmetallic materials    Re-containing superalloy for CCs    solidification    pseudo-dendrite γ
收稿日期: 2008-05-06     
ZTFLH: 

TG244

 
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