摘要
采用JMatPro软件对Haynes282合金进行热力学计算,得到温度由1 400℃降至600℃时合金内不同析出相的含量,分析了铬、钴、钼、钛、铝、碳、硼等元素含量对析出相析出行为的影响。结果表明:碳化物的析出量主要由碳含量决定;铬元素可以增强M23C6的稳定性;铬、钴、钼、钛、铝能促进σ相的析出及稳定;钼含量增加可以促进μ相的析出,而硼、钴、铬、钛、铝等元素会抑制μ相的析出;硼元素对M3B2的稳定性没有影响,但含量增加会增大其析出量;钛元素能促进γ′相的析出并增强其稳定性,铝元素可增加γ′相的析出量。
Thermodynamic calculation was conducted on Haynes282 alloy by using JMatPro software,and then the content of different precipitates in the alloy from 1 400 ℃ to 600 ℃ was obtained.The effects of chromium,cobalt,molybdenum,titanium,aluminum,carbon and boron on the precipitate behavior of precipitates were analyzed.The results show that the precipitate amount of carbides was mainly determined by carbon content.Chromium could enhance the stability of M23C6.Chromium,cobalt,molybdenum,titanium and aluminum could promote the precipitation and stability ofσ phase.The increase of molybdenum content could promote the precipitation ofμphase,while boron,cobalt,chromium,titanium and aluminum inhibited the precipitation ofμphase.Boron had no effect on the stability of M3B2,but the increase of content improved the precipitate amount.Titanium contributed to the precipitation and stability ofγ′phase,and aluminum improved the precipitate amount ofγ′phase.
作者
王静霖
姚志浩
董建新
江河
WANG Jinglin;YAO Zhihao;DONG Jianxin;JIANG He(School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2019年第10期59-65,共7页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(51771017)
