燃气轮机用大型定向结晶铸件制备及组织与性能研究

张健; 申健; 卢玉章; 楼琅洪

doi:10.3724/SP.J.1037.2010.00509

金属学报 >

2010 , Vol. 46 >Issue 11: 1322 - 1326

DOI: https://doi.org/10.3724/SP.J.1037.2010.00509

论文

燃气轮机用大型定向结晶铸件制备及组织与性能研究

张健 ,
申健 ,
卢玉章 ,
楼琅洪

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中国科学院金属研究所, 沈阳 110016

张健, 男, 1972年生, 研究员

收稿日期: 2010-09-27

修回日期: 2010-10-15

网络出版日期: 2010-11-11

基金资助

国家自然科学基金重点项目50931004, 国家重点基础研究发展计划项目2010CB631201和国家高技术研究发展计划项目2008AA05A302资助

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PROCESSING, MICROSTRUCTURE AND MECHANICAL PROPERTIES OF LARGE DIRECTIONALLY SOLIDIFIED CASTINGS FOR INDUSTRIAL GAS TURBINE APPLICATIONS

ZHANG Jian ,
SHEN Jian ,
LV Yu-Zhang ,
LOU Lang-Hong

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Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

Received date: 2010-09-27

Revised date: 2010-10-15

Online published: 2010-11-11

Supported by

Supported by National Natural Science Foundation of China (No.{\footnotesize\it 50931004}), National Basic Research Program of China (No. 2010CB631201) and National High Technology Research and Development Program of China (No.2008AA05A302)

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摘要

对高温度梯度液态金属冷却(LMC)定向凝固技术中低熔点合金污染、模壳变形破裂等关键问题进行了分析, 通过优化LMC定向凝固工艺, 解决了430 mm长大型铸件变截面位置的断晶、偏晶等问题, 分析了铸件的显微组织、热处理工艺及典型力学性能, 成功研制了大型定向结晶叶片.

关键词： 高温合金; 定向凝固; 液态金属冷却; 叶片

本文引用格式

张健 , 申健 , 卢玉章 , 楼琅洪 . 燃气轮机用大型定向结晶铸件制备及组织与性能研究[J]. 金属学报, 2010 , 46(11) : 1322 -1326 . DOI: 10.3724/SP.J.1037.2010.00509

Abstract

Contamination of low melting point metal and distortion and fracture of ceramic shell during directional solidification assisted by liquid metal cooling (LMC) were discussed. Large DS castings with 430 mm in length were produced by optimizing the processing parameters. The microstructure, heat treatment response and typical creep rupture properties of the large casting were analyzed. Results of the preliminary casting trials of large blades were also reported.

Key words： superalloy; directional solidification; liquid metal cooling; blade

参考文献

[1] Seth B B. In: Pollock T M, Kissinger R D, Bowman R R, Green K A, Mclean M, Olson S, Schirra J J, eds., Superalloys 2000, Warrendale, PA: TMS, 2000: 3 [2] Konter M, Thumann M. J Mater Proc Technol, 2001; 117: 386 [3] Zhang J, Lou L H. J Mater Sci Technol, 2007; 23: 289 [4] Lohmueller A, EsserW, Grossmann J, Hoerdler M, Preuhs J, Singer R F. In: Pollock T M, Kissinger R D, Bowman R R, Green K A, Mclean M, lson S, Schirra J J, eds., Superalloys 2000, Warrendale, PA: TMS, 2000: 181 [5] Tang W S, Shen J, Zhang J, Chen L J. J Shenyang Univ Technol, 2009; 31: 397 (唐文书, 申健, 张健, 陈立佳. 沈阳工业大学学报, 2009; 31: 397)

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