文献类型：期刊文献

中文题名：A286高温合金抽芯铆钉钉套局部退火工艺研究

英文题名：Research on Local Annealing Process of A286 Superalloy Core Pulling Rivet Sleeve

作者：袁森 冯治国 聂龙

第一作者：袁森

机构：[1]贵州理工学院机械工程学院,贵州贵阳550003;[2]贵州大学教育部现代制造技术重点实验室,贵州贵阳550003;[3]贵州大学机械工程学院,贵州贵阳550025

第一机构：贵州理工学院机械工程学院

年份：2018

卷号：47

期号：12

起止页码：161-164

中文期刊名：热加工工艺

外文期刊名：Hot Working Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

基金：教育部现代制造技术重点实验室2015年度开放基金项目(XDKFJJ201501);贵州省科技厅工业攻关项目(黔科合GY20123042)

语种：中文

中文关键词：抽芯铆钉;A286高温合金;局部感应加热;薄壁;组织性能

外文关键词：core pulling rivet;A286 superalloy;local induction heating;thin wall;microstructure;properties

摘要：基于A286高温合金抽芯铆钉钉套局部感应加热工艺方法,建立了加热过程的多物理场耦合数值模型,利用有限元法研究和分析导磁体感应器结构、电流等参数对退火区宽度尺寸、温度分布的影响,根据优化的退火工艺参数进行A286高温合金钉套局部退火试验。结果表明：A286高温合金钉套的退火区宽度可控制在8 mm范围内,高温区完宽度为3.2 mm和温度梯度变化小,设计的退火区温度梯度与测得合金材料硬度分布规律基本吻合。退火区的温度范围为700～900℃时,A286高温合金第二析出相析出和晶粒均匀,合金强化作用降低,材料硬度下降和塑性增强。
Based on the local induction heating method for core pulling rivet sleeve of A286 super alloy, a multi physical field coupling numerical model for heating process was established. The influence of magnetic inductor structure, current and other parameters on the width and temperature distribution of annealing zone was studied by finite element method. The local annealing test of the A286 superalloy nail sleeve was carried out according to the optimized annealing process parameters. The results show that the annealing zone width of the A286 super alloy nail sleeve can be controlled in the range of 8 ram, the width of the high-temperature region is 3.2 mm and the temperature gradient change is small. The designed annealing zone temperature gradient is basically consistent with the measured hardness distribution of the alloy. The second precipitated phase ofA286 superalloy precipitates and the grain becomes uniform when the annealing region temperature is in the range of 700-900 ℃. The hardening effect of the alloy is reduced, the hardness of the material decreases and the plasticity is strengthened.