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disk material
相关语句
  盘材料
     Effect of Enviroment on the Low Cycle Fatigue Life of Turbine Disk Material
     环境对涡轮盘材料GH33A低周疲劳寿命的影响
短句来源
     The engine turbine disk material GH33A was tested for low cycle fatigue behavior before stress ageing and after 3000 hours stress ageing respectively.
     研究了发动机涡轮盘材料(GH33A)在3000h应力时效后和未经长时时效状态下的低周疲劳行为。
短句来源
     Fatigue fracture behaviour of turbine disk material
     某涡轮盘材料的疲劳断裂性能
     Analyze on the K index of railway brake disk material
     铁道车辆制动盘材料的K指标分析
短句来源
     The single crystal superalloy DD3 and powder metallurgy superalloy Renē95 are respectively the blade and disk material to make the blisk of aeroengine.
     DD3合金和Ren叆95合金分别是先进航空发动机整体叶盘制造中所用的单晶叶片材料和粉末冶金涡轮盘材料
短句来源
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  “disk material”译为未确定词的双语例句
     In this paper the general approximate method is applied to calculate the stress intensity factor of the 9th-grade disk of 31-25-2 type steam turbine with a radial crack at the corner of the key-slot, and the fracture toughness of the disk material 34CrNi3Mo steel is determined.
     本文采用普遍适用的近似方法,计算了31-25-2型汽轮机9级叶轮在键槽圆角处有径向裂纹 情况下的应力强度因子KI,并且介绍了叶轮材料34CrNi3Mo钢的断裂韧性测试方法及结果。
短句来源
     Researching the disk failure mechanism and reliability analysis method and the building of disk reliability model, the major work is as follows:(1) Refered to a lot of literatures, studied the disk reliability analysis methods in existence, done some strain control fatigue test of disk material and dealled with the test data.
     (1) 对现有轮盘疲劳可靠性分析的方法进行了评述,对轮盘材料进行了应变控制的低循环疲劳试验,并对试验数据进行了回归处理,引入了欧文乘子法来获得给定可靠度和置信度的参数估计值和应变寿命曲线。
短句来源
     The boundary layer is a very narrow region between an accretion disk and an accreting star, in which with the disk material approaching the surface of the star its angular velocity drops from the Keplerian value to the angular rotation velocity of the star.
     边界层是介于吸积盘和吸积星之间的非常狭窄的区域,在该区域中随着盘物质接近星面,它的角速度从开普勒角速度下降至恒星自转角速度。
短句来源
     At abst,the effect of the disk material on the sensitivity is also shown.
     还指出传感板材料对灵敏度的影响。
短句来源
     The OSZ1224 Net Rotating Biological Contactor was developed with the disk material of paper cross flow. The equipment has many advantages, such as higher efficiency with 1.25 m 3/h of waste water treatment, lower energy consumption. It is suitable for the treatment of any kind of organic waste water.
     以此种材料为盘片研制出了OSZ1224型网状生物转盘污水处理设备,经试验研究表明该设备耗能仅0.246kW、处理效率达1.25m3/h、具有占地面积小等优点,适宜于处理各种有机污水。
短句来源
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  相似匹配句对
     Material
     实验材料
短句来源
     ALTERNATIVE MATERIAL FOR FRICTION DISK
     摩擦片材料的代用
短句来源
     MATERIAL
     原料
短句来源
     Processability of Disk Hobcutter Blade Material Machining
     盘形滚刀刀圈材料的切削加工性分析
短句来源
     Information Disk
     信息硬盘
短句来源
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  disk material
The influence of a modified heat treatment (MHT) and the standard heat treatment (SHT) on the damage tolerance of alloy 718 turbine disk material has been studied over a range of temperatures- from room temperature to 650 °.
      
A transmission and scanning electron microscope study has been conducted on the deformation and fracture behavior of Ren'e 95, an advanced superalloy developed for use as a disk material in gas turbine engines.
      
A transmission and scanning electron microscope study has been conducted on the deformation and fracture behavior of René 95, an advanced superalloy developed for use as a disk material in gas turbine engines.
      
Investigation of post-service condition of turbine disk material
      
The main observable quantity accessable by imaging the spatial structure of disks is the mass accretion rate, which constrains angular momentum transport, and migration and diffusion of disk material.
      
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In this paper the general approximate method is applied to calculate the stress intensity factor of the 9th-grade disk of 31-25-2 type steam turbine with a radial crack at the corner of the key-slot, and the fracture toughness of the disk material 34CrNi3Mo steel is determined. KIc obtained from the large specimen is 496 kg/mm3/2 and KIc's obtained from the JIc's of the small specimens are within 504 kg/mm3/2 ±5%. Both the single-specimen method and the resistance curve method are used in JIc determination....

In this paper the general approximate method is applied to calculate the stress intensity factor of the 9th-grade disk of 31-25-2 type steam turbine with a radial crack at the corner of the key-slot, and the fracture toughness of the disk material 34CrNi3Mo steel is determined. KIc obtained from the large specimen is 496 kg/mm3/2 and KIc's obtained from the JIc's of the small specimens are within 504 kg/mm3/2 ±5%. Both the single-specimen method and the resistance curve method are used in JIc determination. According to the KI of the disk with a crack at the key-slot and the KIc of the disk material, the critical length of the crack at the key-slot of the 9th-grade disk of 31-25-2 type steam turbine is determined to be 63.5mm, while the critical length of the crack measured from the fracture section of a similar disk is 65-70mm. The good coincidence shows that the results of the calculation and the experiment are reliable.

本文采用普遍适用的近似方法,计算了31-25-2型汽轮机9级叶轮在键槽圆角处有径向裂纹 情况下的应力强度因子KI,并且介绍了叶轮材料34CrNi3Mo钢的断裂韧性测试方法及结果。由 大试样测得的KIc为496kg/mm3/2,由小试样测得J1c后换算成的KIc为504kg/mm3/2±5%, 在JIc测定中同时采用单试样法及阻力曲线法。根据叶轮键槽裂纹KI的计算结果及叶轮材料KIC 的测定结果,确定31-25-2型汽轮机9级叶轮键槽裂纹的临界长度为63.5mm,而类似叶轮飞裂后 断口实测临界裂纹长度为65~70mm,二者符合较好,说明计算与实验结果是可靠的。

As a new technique of crack detection at high temperatures, Reversing DC Electric Potential Method is used to study the crack propagation behaviours of aeroengine turbine disk material GH169 under creep-fatigue interaction at 650 C and at different hold-times. The fracture surfaces has examined with a scanning electron microscope. The experimental results indicate that the life prediction model by hyperbolic sine function is superior to the life prediction model by Paris formulation in correlativity with...

As a new technique of crack detection at high temperatures, Reversing DC Electric Potential Method is used to study the crack propagation behaviours of aeroengine turbine disk material GH169 under creep-fatigue interaction at 650 C and at different hold-times. The fracture surfaces has examined with a scanning electron microscope. The experimental results indicate that the life prediction model by hyperbolic sine function is superior to the life prediction model by Paris formulation in correlativity with experimental data and predictability at the crack initiation propagation. Moreover, the former model is more convenient in application. It has been found that the crack propagation ratio obtained in the case of gradually increasing loading is smaller than that resulted from one-time loading.

本文采用翻转电位法,研究了航空发动机的涡轮盘材料GH169在650℃时不同保持时间的蠕变疲劳交互作用下的裂纹扩展行为,进行了两种不同预测模型的比较,并用扫描电镜对断口作了微观分析。实验结果表明,利用Paris公式拟合初始裂纹扩展阶段实验数据时相关性差,但双曲正弦寿命预测模型具有良好的相关性及预测性,且这种模典更为方便实用。在实验中还发现逐次从小载荷循环增至大载荷循环的裂纹扩展速率比一次加载明显减慢。

The boundary layer is a very narrow region between an accretion disk and an accreting star, in which with the disk material approaching the surface of the star its angular velocity drops from the Keplerian value to the angular rotation velocity of the star. The importance of the boundary layer lies in the considerations that up to a half of the ac cretion luminosity is generated in this region, and that it provides the inner boundary condition for the differential equations determining the structure of...

The boundary layer is a very narrow region between an accretion disk and an accreting star, in which with the disk material approaching the surface of the star its angular velocity drops from the Keplerian value to the angular rotation velocity of the star. The importance of the boundary layer lies in the considerations that up to a half of the ac cretion luminosity is generated in this region, and that it provides the inner boundary condition for the differential equations determining the structure of the outer disk. In this paper the progress of researches on the accretion disk boundary layer in cataclysmic variables is reviewed briefly.

边界层是介于吸积盘和吸积星之间的非常狭窄的区域,在该区域中随着盘物质接近星面,它的角速度从开普勒角速度下降至恒星自转角速度。边界层因释放的能量接近吸积光度的一半,并且为确定吸积盘结构的微分方程提供内边界条件而显示出它的重要性。本文综述了激变变星中吸积盘边界层的研究进展。

 
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