热等静压技术在镍基铸造高温合金领域的应用研究

doi:10.11868/j.issn.1001-4381.2020.000396

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摘要

镍基铸造高温合金是航空发动机与燃气轮机生产制造过程中应用的主要材料之一，在航空航天、能源工业、船舶舰艇等领域有着广泛的应用。现代航空工业的飞速发展离不开高温合金综合性能的快速提升，而热等静压技术在镍基铸造高温合金领域的应用对镍基铸造高温合金综合性能的改进方面发挥了举足轻重的作用。本文介绍了热等静压技术的工作原理与应用发展历史，总结了热等静压技术在镍基铸造高温合金领域的研究应用现状，重点阐述了热等静压技术对铸造高温合金的致密化作用机理与组织性能影响、热等静压对长期服役镍基铸造高温合金组织修复研究以及实现两种镍基高温合金扩散连接的应用优势与研究成果。同时指出热等静压技术研究中存在的一些问题及国内热等静压技术在镍基铸造高温合金领域的发展趋势。

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	宋富阳
	张剑
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	赵云松
	沙江波

关键词 ：热等静压, 镍基铸造高温合金, 致密化, 损伤修复, 扩散连接

Abstract：

Nickel-based cast superalloy is one of the main materials applied in the manufacture of aeroengine and gas turbine, and it is widely applied in aerospace, energy industry and shipbuilding industries etc.The rapid development of modern aviation industry is inseparable from the rapid improvement of the comprehensive performance of superalloys, and the application of hot isostatic pressing technology in the field of nickel-based casting superalloys plays a pivotal role in improving the comprehensive performance of nickel-based casting superalloys. In this paper, the working principle and application history of hot isostatic pressing technology were introduced. The research and application status of hot isostatic pressing technology in the field of nickel-based casting superalloys was summarized. The research on the effect of hot isostatic pressing on the densification mechanism and microstructure properties of cast superalloys, research on hot isostatic pressing on the microstructure repair of nickel-based cast superalloys in long-term service, and research on the realization of the diffusion bonding of two nickel-based superalloys progress are highlighted and elaborated. At the same time, some problems in the research of hot isostatic pressing technology and the development trend of domestic hot isostatic pressing technology in the field of nickel-based cast superalloys were pointed out.

Key words： hot isostatic pressing nickel-base cast superalloy densification damage repair diffusion bonding

收稿日期: 2020-05-03 出版日期: 2021-01-14

中图分类号:

TG132.3⁺2

通讯作者: 沙江波 E-mail: jbsha@buaa.edu.cn

作者简介: 沙江波(1965-), 男, 教授, 现从事高温结构材料研究工作, 联系地址:北京市海淀区学院路37号北京航空航天大学材料科学与工程学院(100191), E-mail:jbsha@buaa.edu.cn

引用本文:

宋富阳, 张剑, 郭会明, 张迈, 赵云松, 沙江波. 热等静压技术在镍基铸造高温合金领域的应用研究[J]. 材料工程, 2021, 49(1): 65-74.
Fu-yang SONG, Jian ZHANG, Hui-ming GUO, Mai ZHANG, Yun-song ZHAO, Jiang-bo SHA. Research on application of hot isostatic pressing technology in the field of nickel-based cast superalloys. Journal of Materials Engineering, 2021, 49(1): 65-74.

链接本文:

http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2020.000396 或 http://jme.biam.ac.cn/CN/Y2021/V49/I1/65

Fig.1 热等静压处理0.5 h后孔洞显微形貌^[20]
(a)FIB切后孔洞形貌；(b)孔洞周围组织位错形貌

Fig.2 蠕变孔洞愈合区及其物理模型^[21]
(a)愈合区SEM；(b)愈合区物理模型

Table 1 确定压力条件下热等静压方案

Fig.3 不同热等静压方案下铸态ERBO-1A和热态ERBO-1C样品的孔隙率^[32]

Table 2 确定保持时间条件下热等静压方案

Fig.4 不同热等静压方案下铸态ERBO-1A样品的孔隙率^[32]

Table 3 不同冷却速率热等静压方案

Fig.5 100 MPa下热等静压-热处理集成方案^[33]

Fig.6 蠕变-恢复循环实验^[46]

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