Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第10卷    第z1期    总第100期    1999年10月

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文章编号:1004-0609(1999)s1-0099-06
氮气雾化喷射沉积变形镍基高温合金
刘仲武    米国发    田世藩    李  周    张智慧    张国庆

(北京航空材料研究院,北京 100095)

摘 要:     利用氮气雾化喷射沉积技术成功地获得了宇航用变形镍基高温合金柱形坯。沉积坯整体致密、含气量低、成分均匀、组织细化。研究了温度和应变速率对沉积材料的高温变形抗力、工艺塑性的影响以及热加工和经5种不同热处理后材料的显微组织特征。材料的最终力学性能达到或超过同成分的铸锻材料的标准要求。

 

关键字: 喷射雾化沉积    变形高温合金    显微组织     力学性能

A NITROGEN SPRAY ATOMIZED AND DEPOSITED Ni-BASE SUPERALLOY
Liu Zhongwu, Mi Guofa, Tian Shifan, Li Zhou, Zhang Zhihui and Zhang Guoqing

Beijing Institute of Aeronautical Materials, Beijing 100095, P. R. China

Abstract:A Ni-base superalloy columnar preform were produced through nitrogen spray atomization and deposition. The deposited material exhibits high density, low gas content, homogenous composition and fine structure. The high temperature deformation characteristics and microstructures after several heat treatments were studied. The results showed that the mechanical properties of the spray formed materials are better than those of the cast & wrought materials of similar chemical compositions.

 

Key words: spray atomization and deposition; superalloy; microstructure; mechanical properties

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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