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K424高温合金显微组织和力学性能分析
Analysis of Microstructure and Mechanical Properties of K424 Superalloy
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- DOI:
- 作者:
- 逯红果 王光华 田立敏 赵国才 马中钢 殷凤仕 李道乾
LU Hongguo;WANH Guanghua;TIAN Limin;ZHAO Guocai;MA Zhonggang;YIN Fengshi;LI Daoqian
- 作者单位:
- 山东理工大学机械工程学院 山东瑞泰新材料科技有限公司
School of Mechanical Engineering,Shandong University of Technology,Zibo 255049,China;Shandong Ruitai New Material Technology Co Ltd,Yiyuan 256100,China
- 关键词:
- K424合金 熔体处理温度 力学性能
K424 superalloy melt treatment temperature mechanical properties
- 摘要:
- 通过金相显微镜、扫描电镜研究了K424合金显微组织。研究表明:K424合金中主要为MC型碳化物和(γ+γ′)共晶组织,MC型碳化物分为汉字骨架状和颗粒、长条状;汉字骨架状的MC型碳化物不利于提高合金伸长率和断面收缩率。The microstructure of K424 alloy was studied by metallographic microscope and scanning electron microscope(SEM).The results show that the K424 alloy is mainly composed of MC-type carbides and(γ+γ′)eutectic structure.MC-type carbides are divided into Chinese-shaped skeletons,particles,and strips.Among them,the Chinese character skeleton of MC-type carbide is not conducive to improving the alloy elongation and cross-sectional shrinkage.