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节并非Nb或Ni原子的长程扩散过程, 而为δ相分解的界面反应过程. 关键词: Inconel 718合金; 溶解动力学; 控制环节; 扩散; 界面反应 中图分类号: TG132.3 文献标识码: A Dissolution kinetics of δ phase in Inconel 718 alloy CAI Da-yong, ZHANG Wei-hong, LIU Wen... phase in Inconel 718 alloy during holding at 980, 1000 and 1020℃ were analyzed using X-ray diffraction and scanning electron microscopy. The results indicate that the dynamic equilibrium state reaches......
of the Inconel 718 alloy. Key words: Inconel 718 superalloy; segregation of niobium; laser cladding; cooling rate 1 Introduction Inconel 718 alloy is a Nb-bearing nickel-based superalloy with high yield... microstructure and the resultant performance of the alloy. Traditionally, Inconel 718 alloy components are fabricated by thermal processing, such as cast, wrought and welding. With the development......
Delta工艺中Inconel 718合金中δ相的演变机制张海燕1,张士宏1,程明1(1.辽宁省沈阳市科学院金属研究所)摘 要:针对Inconel 718合金的Delta工艺,采用金相显微镜,扫描电镜和定量X射线衍射技术研究了变形温度为950℃,应变速率为0.005 s-1的等温压缩变形中δ相的演变机制.结果表明...:Inconel 718合金； Delta工艺； δ相； 变形； 球化......
plasticity of the laser butt-welded plate can meet the requirement of superplastic forming. Key words: Inconel 718 alloy; laser welding; high temperature plasticity; microstructure 1 Introduction...-speed vehicle [4]. However, the severe tendency of strain hardening of Inconel 718 alloy limits the sheet size to meet the size for multi-sheet cylinder sandwich structures [5]. The bending plate......
curve of Inconel 718 alloy under various conditions 2.2 腐蚀产物相分析 图4所示为经过75 h高温盐浴腐蚀后表面产物的XRD谱,经分析发现,除了基体相外,主要产物为Cr2O3,NiO,Fe3O4和Ni3S2,其中O和S元素主要来自于腐蚀盐Na2SO4,而不同热处理后合金腐蚀产物没有明显变化. 图4 高温腐蚀75 h... test under various heat treatment conditions 图6 SLM成形Inconel 718合金高温腐蚀100 h后表面产物显微形貌及EDS谱 Fig. 6 Surface morphology and element distribution of Inconel 718 alloy after 100 h high......
Xiao-hu. Analysis and control of coarse grain formation of GH4169 alloy turbine wheel[J]. Forging, 2004(5): 9-11. [6] HUANG YI, LANGDON T G. The evolution of delta-phase in a superplastic Inconel 718...文章编号:1004-0609(2012)1-0072-08 Delta工艺Inconel 718合金热变形条件下的流变行为 杨 平1,赵玉涛1,王安东1,缪 栋2,陈 刚1,何 毅1 (1. 江苏大学 材料科学与工程学院,镇江 212013；2. 丹阳精密合金厂,镇江 212352) 摘 要:在Gleeble-3500热模拟实验机上对......
and strain constitutive modeling of delta-processed Inconel 718 alloy SI Jia-yong1, 2, LIAO Xiao-hang1, HUANG Zai-wang2, JIANG Liang2 (1. College of Mechanical and Electrical Engineering, Central South... of delta-processed Inconel 718 alloy. Key words: Inconel 718 alloy; delta process; flow behavior; stress revise; constitutive modeling Inconel 718合金是一种铌强化的沉淀硬化型铁镍基高温合金,由于其优良的高温力学性能,在航空工业中被广泛用于制造一些关键零部件,如压气......
Trans. Nonferrous Met. Soc. China 22(2012) 318-323 Effects of P and B addition on as-cast microstructure and homogenization parameter of Inconel 718 alloy MIAO Zhu-jun1, SHAN Ai-dang1, WU Yuan-biao1..., the homogenization temperature is recommended to be adjusted at least 40℃ lower than that of standard Inconel 718 due to the existence of low melting B-bearing phase. Key words: P; B; Inconel 718 alloy......
Trans. Nonferrous Met. Soc. China 28(2018) 1530-1537 Microstructural characterization of Inconel 718 alloy after pulsed laser surface treatment at different powers Lin-jiang CHAI1, Shan-shan YUAN1... Materials Research Institute Co., Ltd., Chongqing 400707, China Received 3 September 2017; accepted 15 April 2018 Abstract: An annealed Inconel 718 alloy was surface-treated by pulsed laser at three......
