Monel400合金热紧缩变形流变应力本构方程
目的研讨Moenl400合金的热变形流变行为,确认合金热紧缩变形的流变应力本构方程。办法在Gleeble1500热模仿机上对Ni-Cu固溶体单相合金Monel400进行等温热紧缩实验,研讨Monel400合金在变形温度为11731423 K、应变速率为0.0110 s-1时的流变应力;Monel400合金的本构模型为含有ZenerHollomon参数的双曲正弦函数模型,经过回归剖析获得了资料常数Q,ln A,n,α与真应变ε的联系;并对不同变形条件下的实测值与核算值进行比照。成果 Moenl400合金的流变应力随温度的升高和应变速率的下降而下降;Moenl400合金流变应力的核算值与实验值吻合较好。结论经过核算得到的本构模型可以较好地表征Monel400合金的高温流变特性。
Rheological stress constitutive equation of Monel400 alloy during hot compression deformation
Objective: To study the hot deformation rheological behavior of Moenl400 alloy and determine the rheological stress constitutive equation for hot compression deformation of the alloy. Method: Isothermal hot compression experiments were conducted on Ni Cu solid solution single-phase alloy Monel400 using a Gleeble1500 thermal simulator to study the flow stress of Monel400 alloy at a deformation temperature of 11731423 K and a strain rate of 0.0110 s-1; The constitutive model of Monel400 alloy is a hyperbolic sine function model containing ZenerHollomon parameters. The material constants Q, ln A, n were obtained through regression analysis, α And true strain ε The relationship between; And compare the measured values and calculated values under different deformation conditions. The flow stress of Moenl400 alloy decreases with the increase of temperature and the decrease of strain rate; The calculated values of the flow stress of Moenl400 alloy are in good agreement with the experimental values. Conclusion: The constitutive model obtained through calculation can better characterize the high-temperature rheological properties of Monel400 alloy.
Monel 400与16MnDR异种钢SMAW/GTAW焊接剖析
Monel400合金与16MnDR进行异种钢焊接,选用SMAW手工电弧焊(选用焊条ENiCu-7进行对接焊接)、选用GTAW钨极氩弧焊(选用焊丝SNi4060进行对接焊接),对两块试板对接焊缝进行功能比照剖析,成果证明运用该两种焊材均能获得优质的焊接接头质量,可运用于低温工况下压力容器、压力管道制作。
SMAW/GTAW welding analysis of Monel 400 and 16MnDR dissimilar steel
The Monel400 alloy and 16MnDR were welded to different types of steel using SMAW manual arc welding (using ENiCu-7 welding rod for butt welding) and GTAW tungsten argon arc welding (using SNi4060 welding wire for butt welding). The performance of the butt welds on the two test plates was compared and analyzed. The results showed that using these two welding materials can achieve high-quality welding joint quality and can be used in the manufacturing of pressure vessels and pressure pipelines under low-temperature conditions.
压力容器用Monel-400/16MnⅢ复合板制作过程中的焊接实验研讨
镍铜合金Monel-400因其优秀的耐蚀功能在石化行业得到广泛应用。在压力容器用的Monel-400/16MnⅢ爆炸复合板制作过程中,需求进行复层拼焊和未复合区补焊。根据资料的焊接性特点,对Monel-400板材拼焊和Monel-400/16MnⅢ复合板未复合区补焊进行焊接实验研讨,成果表明,拼焊和补焊接头的各项功能均满足相关指标要求,符合工程实际需求。
Welding Test Study on Monel-400/16Mn III Composite Plate Manufacturing Process for Pressure Vessels
The nickel copper alloy Monel-400 has been widely used in the petrochemical industry due to its excellent corrosion resistance. In the manufacturing process of Monel-400/16Mn III explosive composite plates used in pressure vessels, it is necessary to perform multi-layer splicing welding and repair welding in the uncoated area. Based on the weldability characteristics of the materials, welding tests were conducted on the Monel-400 sheet metal for splicing and repair welding in the non composite area of Monel-400/16Mn III composite plates. The results showed that the various properties of the splicing and repair welding joints met the relevant index requirements and met the practical needs of the project.
Monel 400的焊接技术研讨
Monel 400是镍基合金,若在焊接过程中采纳的工艺办法不得当,极易产生热裂纹、气孔等缺点;为满足或达到工艺要求的焊接质量,对Monel 400资料的焊接性进行剖析,并经过焊接工艺评定实验,以此选择正确的焊接办法和工艺参数,解决了焊接中的热裂纹和气孔问题。
Research on Welding Technology of Monel 400
Monel 400 is a nickel based alloy, and if improper process measures are taken during welding, it is prone to defects such as hot cracks and pores; To meet or meet the welding quality requirements of the process, the weldability of Monel 400 material is analyzed, and the correct welding method and process parameters are selected through welding process qualification tests to solve the problems of hot cracks and porosity in welding.
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