Fatigue properties of nickel-based superalloy components in electron beam welding

来源 :2013年国际焊接结构疲劳断裂学术会议 | 被引量 : 0次 | 上传用户:yangliang0510
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  The paper investigates the tube-plate type components welded with full penetration electron beam,and the structural characteristic of the tube plate type component is introduced.
其他文献
利用热弹塑性有限元方法对材料Q345装载机动臂梁结构的焊接变形进行了热-力耦合数值模拟计算,建立了分析模型。定量地对比了在同一约束条件下,动壁板与动臂圆筒、摇臂板与动臂圆筒的焊接顺序对整体结构焊接变形的影响,按照对称组焊的原则优化最佳焊接顺序。
The repeated two-step loading fatigue tests on medium railway axle steel were carried out by applying the rotary bending fatigue machine.The results show that the specimen under constant loading has t
The rotary bending fretting fatigue tests were conducted by the press-fit assembly consisted of locking assembly,pad and the specimen of 35CrMo railway axle steel.The S-N curve was obtained and the fr
对TC4/TC17异种钛合金线性摩擦焊接头进行了4种不同保温时间的焊后退火热处理,并分别对各个保温时间下的接头进行了疲劳极限、断裂韧性测试,同时对疲劳断口和断裂位置进行了分析,最终确定了TC4/TC17异种钛合金线性摩擦焊接头焊后退火处理的最佳保温时间,为线性摩擦焊工艺在工程实际中的应用提供依据。
In order to improve the high-temperature brazing quality of stainless steel pipe,the paper,by the example of the pipe union breaking failure in high-temperature brazing with the stainless steel pipe o
The response sensitivity analysis of the scaled boundary finite element method(SBFEM),which has been effectively used in fracture problems,plays an important role in the probabilistic fracture mechani
Bogie and car body are two of the most important welded structures in railway locomotive and vehicle.Bogie structure is usually welded by structural steel,while for car body,the parent materials inclu
源于合金VT22的新型亚稳态β钛合金Ti-5Al-5Mo-5V-3Cr-0.5Fe、(Ti-5553),因其优于Ti-10V-2Fe-3Al(Ti-1023)的几大特点,例如,偏析敏感度低、淬透性好、强度优异和断裂韧性较高等优点已被选择应用于波音787飞机起落架转向架梁和飞机骨架结构件,也用于制造空客A380飞机发动机舱吊挂接头等关键承力部位.
传统强度设计思想的一个基本假设是把材料的初始状态视为无缺陷的均匀连续体。事实证明,根据这一思想设计的构件并不能保证其服役的安全可靠性。断裂力学通过连续介质力学的理论分析建立含裂纹构件的强度设计概念,提出设计计算方法及物理实验模型,探讨如何控制和防止结构的断裂破坏。
The aim of this paper is to improve the rolling contact wear and fatigue resistance of ferrite-pearlite wheel steel by laser dispersed treatment.Such treatment creates isolated glazed regions on the s