汪力,杨钢,雷霆,王鲁,刘庆

• 1:昆明理工大学能源与冶金工程学院
• 2:钢铁研究总院特殊钢研究所

摘要(Abstract)：

研究了Waspaloy合金在标准热处理状态下,700℃长期时效过程中的组织和力学性能变化。结果表明,长期时效过程中Waspaloy合金析出相主要为MC型碳化物,M23C6型碳化物和γ'相,时效过程中并未发现有害TCP相。M23C6型碳化物在晶界呈链状分布,长期时效过程中其大小、分布基本不变,稳定性良好;γ'相在时效100 h后充分析出,尺寸随时效时间延长而长大,γ'粗化规律符合L-S-W理论,5000 h时效后γ'相形貌仍然为球形。时效100 h合金强度有小幅上升,随后随时效时间延长合金强度变化不大。

关键词(KeyWords)： Waspaloy合金;长期时效;γ'相

Abstract:

Keywords:

基金项目(Foundation): 国家“863”计划项目(2012AA03A502)

作者(Author): 汪力,杨钢,雷霆,王鲁,刘庆

DOI: 10.13289/j.issn.1009-6264.2014.09.012

参考文献(References)：

• [1]Semiatin S L,Fagin P N,Glavivie M G,et al.Deformation behavior of WASPALOY at hot-working temperatures[J].Scripta Materialia,2004,50:625-629.
• [2]Ricky L W,Siva V K,Kelekanjeri G,et al.Effect of aging treatment on the microstructure and resistivity of a nickel-base superalloy[J].Metallurgical And Materials Transactions A,2011,42:1362-1372.
• [3]Sarwan M,Shailesh P,John D.Long-term thermal stability of INconel alloy 718,706,909,and waspaloy at 593℃and 704℃[C]∥Tenth Iternation Symposium,Superalloy,2004,449-458.
• [4]赵双群,谢锡善.Wsaploy合金长期时效过程中的组织演变和性能变化[J].机械工程材料,2006,30(10):62-65.ZHAO Shuang-qun,XIE Xi-shan.Mechanical properties and mircostructure evolution of waspaloy after long exposure[J].Materials for Mechanical Engineering,2006,30(10):62-65.
• [5]姚志浩,董建新,张麦仓,等.GH864合金870高温时效过程中强化相的退变[J].材料热处理学报,2011,32(10):43-49.YAO Zhi-hao,DONG jian-xin,ZHANG Mai-cang,et al.Degradation of microstructure of GH864 superalloy during long exposure at 870℃[J].Transactions of Materials and Heat Treatment,2011,32(10):43-49.
• [6]王迪,陈国良.烟气轮机用Waspaloy合金叶片热处理工艺选择[J].北京科技大学学报,1993,15(1):20-24.WANG Di,CHENG Guo-liang.Selection of heatments for waspaloy alloy as flue gas turbin blade[J].Journal of University of Science and Technology Beijing,1993,15(1):20-24.
• [7]Wang J,Zhou L Z,Qin X Z,et al.Primary MC decomposition and its effects on the rupture behaviors in hot-corrosion resistant Ni-based superalloy K444[J].Materials Sciences and Engineering A,2012,553(9):14-21.
• [8]宋西平,李红宇,盖靖峰,等.U720LI合金高温析出γ'相的失稳分解[J].金属学报,2005,41(11):1233-1236.SONG Xi-ping,LI Hong-yu,GAI Jing-feng,et al.The decomposition of metastable high-temperatureγ'precipitates in U720LI alloy[J].Acta Metallurgica Sinica,2005,41(11):1233-1236.
• [9]Fahrmann M,Hermann W,Fahrmann E,et al.Determination of Matrix and Precipitate Elastic contents in(γ-γ')Ni-base model alloys,and their relevance to rafting[J].Materials Sciences and Engineering A,1999,260(1-2):212-221.
• [10]陈国良.高温合金学[M].北京:冶金工业出版社,1988.

文章评论(Comment)：