摘要
为优化TA2钛合金间隙式真空渗碳工艺,采用L_9(3~3)正交设计方案研究温度、压强、甲烷乙炔气氛配比对TA2钛合金渗碳层硬度、厚度及耐磨性的影响。结果表明:温度对TA2钛合金渗碳层影响最大。正交试验最佳的工艺参数为温度940℃,压强-70 k Pa,甲烷和乙炔的配比为7∶1,此时钛合金的硬度最佳可达到972.8 HV,渗层厚度可达136μm。各因素的影响程度是:温度>甲烷乙炔气氛配比>压强。
In order to optimize the gap-type vacuum carburization of TA2 titanium alloy, the effects of temperature, pressure and atmosphere ratio of methane to acetylene on the hardness, thickness and wear resistance of the carburized layer of TA2 titanium alloy were studied by L9 （33） orthogonal design scheme. The results showed that the temperature had the most influence on the carburized layer of TA2 titanium alloy. The best technological parameters of orthogonal test the temperature was 940 ℃. And the pressure was - 70 kPa, with the ratio of 7：1 for methane to acetylene. In this case, the best hardness of titanium alloy was up to 972.8 HV with the thickness of 136 μm for the layer. The influence degree of each factor was temperature 〉 ratio of methane to acetylene atmosphere 〉 pressure.
作者
李振鹏
刘静
颜志斌
杨峰
赵润宇
LI Zhenpeng;LIU Jing;YAN Zhibin;YANG Feng;ZHAO Runyu(School of Materials and Architectural Engineering,Guizhou Normal University,Guiyang,Guizhou 550001;College of Materials and Metallurgy,Guizhou University,Guiyang,Guizhou 550003,China)
出处
《贵州师范大学学报（自然科学版）》
CAS
2018年第5期54-59,共6页
Journal of Guizhou Normal University：Natural Sciences
基金
国家自然科学基金(No.:51574096
No.:51464008)
贵州省优秀青年科技人才培养项目(黔科合平台人才[2016]5607号)
关键词
TA2钛合金
真空渗碳
硬度
厚度
耐磨性
TA2Titanium alloy
vacuum cementite
hardness
thickness
wear resistance
