摘要
开展了界面反应对熔模铸造TiAl合金影响的研究。研究发现:试样表面有较明显的富氧污染层,Ti、Al元素在表面层稍有下降,其余元素未发生明显波动。Y_(2)O_(3)陶瓷型壳对TiAl合金液的污染主要是面层中的氧元素扩散至合金中引起的扩散型反应。生成的产物主要为TiO、Al_(2)O_(3)等。试样硬度范围在HV333.0~514.2之间,表层具有相对较高的硬度,污染层厚度约8~12μm。
The effect of interface reaction on investment casting TiAl alloy was studied.It was found that there was a slightly obvious oxygen-rich pollution layer on the surface of the sample.Ti and Al decreased slightly in the surface layer,and the other elements did not fluctuate significantly.The contamination of the Y_(2)O_(3) ceramic shell to the liquid TiAl alloy was mainly caused by the diffusion of O element in the surface layer into the alloy.The reaction products generated were mainly TiO,Al_(2)O_(3),etc.The hardness of the sample ranged from HV 333.0 to 514.2.The surface layer had a relatively high hardness,and the thickness of the contaminated layer was about 8 to 12μm.
作者
张有为
韩鹏江
包春玲
包有宇
郑松翔
杨海涛
赵军
谢华生
ZHANG You-wei;HAN Peng-jiang;BAO Chun-ling;BAO You-yu;ZHENG Song-xiang;YANG Haitao;ZHAO Jun;XIE Hua-sheng(Shenyang Research Institute of Foundry Co.,Ltd.,State Key Laboratory of Light Alloy Casting Technology for HighEnd Equipment,Shenyang 110022,Liaoning,China;Liaoyang Military Representative Office of Air Force Equipment Department,Liaoyang 110043,Liaoning,China;Beijing Isa Technology Development Co.,Ltd.,Beijing 100094,China)
出处
《铸造》
CAS
北大核心
2022年第7期893-897,共5页
Foundry
