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变形高温合金 INCONEL 718疲劳性能的研究进展 王海瑛1 (1.宝山钢铁股份有限公司特殊钢分公司技术中心,上海,200940) 摘要:INCONEL 718是目前应用范围最广,用量最大的高温合金,从高周疲劳特性的研究,元素B和P对低周疲劳特性的影响,显微组织对718合金疲劳性能的影响三方面综述了目前国内外对变形高温合金INCONEL 718疲劳性能的研究情况. 关键词:变形INCONEL718合金; 疲劳性能; 显微组织; 合金成分; [全文内容正在添加中] ......
直接激光沉积Ti6Al4V/Inconel 718复合材料微观组织与力学性能分析(英文)吴东江,元世军,余超,何爱迪,马广义,牛方勇,卢凡大连理工大学精密与特种加工教育部重点实验室摘 要:Ti6Al4V和Inconel 718合金被广泛用于航空航天.但TC4或Inconel 718难以同时满足轻量化和耐高温的需求.因此采用直接激光沉积制备了不同比例Ti6Al4V/Inconel 718复合材料.分别通过X射线衍射,扫描电子显微镜和能谱仪分析相组成,微观结构和元素分布.同时,研究了显微硬度和摩擦磨损性能.结果表明:随着Inconel 718的比例增加,有Ti2Ni和Ni3Ti金属间化合物形成.Ti2Ni的形成机理为:β→α+Ti2Ni和L→β-Ti+Ti2Ni,且Ti2Ni金属间化合物的偏析机理为晶间偏......
CREEP CRACK GROWTH BEHAVIOR OF ALLOY 718 DURING HIGH TEMPERATURE EXPOSURE Y.P.Zeng1,X.S.Xie1,J.X.Dong1,M.C.Zhang1 (1.Department of Material Science, University of Science and Technology Beijing, Beijing 100083,China) Abstract:Alloy 718 is a precipitation strengthened nickel-based superalloy based on the precipitation ofγ"-Ni3Nb (DO22 structure) and γ-Ni3(Al, Ti) (Ll2 structure) phases. Creep......
="ChDivSummary" name="ChDivSummary">High entropy alloy(HEA) of Fe Co Ni Ti Al and Inconel 718 superalloy were firstly transient liquid phase(TLP) bonded by BNi2 filler due to the diffusion of Si and B...Microstructure and mechanical properties in the TLP joint of FeCoNiTiAl and Inconel 718 alloys using BNi2 fillerLin Yuan1,2,Jiangtao Xiong1,2,Yajie Du2,Jin Ren2,Junmiao Shi2,Jinglong Li21. State Key......
, Measuring and Control Technology(Beijing Jiaotong University), Ministry of Education摘 要:In situ ultrafine TiC dispersion reinforced Inconel 718 alloy...Ti2AlC triggered in-situ ultrafine TiC/Inconel 718 composites:Microstructure and enhanced propertiesWenqiang Hu1,Zhenying Huang1,2,Qun Yu1,Yuanbo Wang1,Yidan Jiao1,Cong Lei1,Leping Cai1,Hongxiang......
基于DEFORM-3D的EHM切削Inconel 718的刀具磨损研究滕文博,潘星宇,康裕华,董霖摘 要:具有难切削加工问题的高温合金是发动机的关键材料,为了减少切削加工区域的刀具磨损深度,运用仿真软件DEFO-RM-3D建立了高温合金Inconel 718的EHM仿真模型,随后用EHM仿真模型分别进行了单因素实验与正交实验的仿真实验.实验结果表明:随着切削速度,切削深度,进给量三个切削因素的持续增大,刀具磨损深度表现为不断上升的趋势,而工件初始温度的不断升高则会持续降低刀具磨损深度;在工件初始温度不断升高的条件下,EHM仿真模型的刀具磨损深度比无电流加热切削刀具磨损深度降低了21.9%.关键词:切削加工;Inconel 718;EHM;仿真模型;DEFORM-3D软件;刀具磨损;......
Steady State Creep Rate Equation of Inconel 718 Superalloy韩雅芳,M.C.Chaturvedi摘 要:<正> The steady state creep rate equdtion ofa nickel base superalloy Inconel 718, strengthenedby coherent ordered disc-shaped bct γ11 phaseand coherent spherical fcc γ1 phase precipitates,has been established in the stress and temperatureranges of 620-840 MN m-2......
and liquid segregation calculation can give a reasonable interpretation of the freckle feature for this alloy. Key words:freckle; superalloy; Inconel 625; thermodynamic calculation; [全文内容正在添加中] ...PHASE TRANSFORMATION AND CHARACTERISTICS IN FRECKLE AREAS FOR INCONEL 625 SUPERALLOY Y.P.Zeng1,X.S.Xie1,J.X.Dong1,M.C.Zhang1 (1.University of Science and Technology Beijing, Beijing 100083, China......
Microstructure, precipitates and mechanical properties of powder bed fused inconel 718 before and after heat treatmentLe Zhou,Abhishek Mehta,Yongho Sohn摘 要:IN718 alloy was fabricated by laser powder bed fusion(PBF) for examination of microstructure, precipitates and mechanical properties in the as-built state and after different heat treatments......
Inconel 718高温合金电渣重熔热力学分析段生朝1,2,郭汉杰1,2,石骁1,2,郭靖1,2,李彬1,2,韩少伟1,2,杨文晟1,21. 北京科技大学冶金与生态工程学院2. 高端金属材料特种熔炼与制备北京市重点实验室摘 要:基于离子-分子共存理论建立了计算电渣重熔Inconel 718高温合金过程中平衡Al和Ti含量的热力学模型.并讨论了CaO-SiO2-MgO-FeO-Al2O3-TiO2-CaF2电渣重熔渣系成分变化时,渣中各组元的活度,活度比值与炉渣成分的关系.与此同时,研究了不同温度条件下,镍基合金中平衡的Al和Ti含量与炉渣成分之间的关系.结果表明:冶炼温度升高时,合金中平衡的Al含量随之升高,而平衡Ti含量降低;渣中MgO和CaF2只起到调整炉渣物理化学性质的作用,对控制镍基合金中......
