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作 者:孙长波 吴保平 冯秋水 孙嘉言 王福德 焦军红 许庆彦 SUN Chang-bo;WU Bao-ping;FENG Qiu-shui;SUN Jia-yan;WANG Fu-de;JIAO Jun-hong;XU Qing-yan(AECC Shenyang Liming Aero-Engine Co.,Ltd.,Shenyang 110143,Liaoning,China;DEKAI Intelligent Casting Co.,Ltd.,Baoding 072750,Hebei,China;Key Laboratory for Advanced Materials Processing Technology(MOE),School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China;Second Military Representative Office of Air Force Equipment Department in Shenyang,Shenyang 110043,Liaoning,China)
机构地区:[1]中国航发沈阳黎明航空发动机有限责任公司,辽宁沈阳110043 [2]河北钢研德凯科技有限公司,河北保定072750 [3]清华大学材料学院,先进成形制造教育部重点实验室,北京100084 [4]空军装备部驻沈阳地区第二军事代表室,辽宁沈阳110043
出 处:《铸造》2023年第1期7-10,共4页Foundry
摘 要:由于Ni_(3)Al基高温合金具有抗蠕变强度大、耐腐蚀、抗氧化等优异的高温性能。作为多组元的金属间化合物,合金组分的变化会直接影响到Ni_(3)Al基高温合金的性能表现。为优化合金成分,获得最佳的合金性能,研究了晶界强化元素B含量变化对Ni_(3)Al基高温合金组织和性能的影响。结果表明,合理控制B元素含量,能够增加合金的持久时间和塑性。当B元素含量在0.012%~0.021%时,合金在1100℃的拉伸性能和1050℃/100 MPa及1100℃/60 MPa的持久性能达到最佳。Ni_(3)Al based superalloy has excellent high temperature properties such as high creep strength,corrosion resistance and oxidation resistance.As a multi-component intermetallic compound,the change of alloy composition will directly affect the performance of the Ni_(3)Al-based superalloy.In order to optimize the alloy composition and obtain the best alloy properties,the effect of the content of grain boundary strengthening element B on the microstructure and properties of the Ni_(3)Al-based superalloy was studied.The results showed that the rupture time and plasticity of the alloy were increased by reasonably controlling the content of the B element.When the content of the B was between 0.012%and 0.021%,the tensile properties and the durability properties of the alloy at 1100℃and 1050℃/100 MPa and 1100℃/60 MPa were the best.
分 类 号:TG132.32[一般工业技术—材料科学与工程]
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