weld相关论文
Submerged arc welding(SAW)and gas metal arc welding(GMAW)experiments of Nb-bearing X80 steel were conducted with high-to......
Effect of Cu Addition on the Microstructure and Mechanical Properties of U-MIG Welds on Galvanized S
Ultrasonic-assisted metal inert gas (U-MIG) welding experiments were performed to analyze the effect of Cu addition on t......
Effects of Post-weld Heat Treatment on Microstructure, Mechanical Properties and the Role of Weld Re
In as-welded state,each region of 2219 aluminum alloy TIG-welded joint shows different microstructure and microhardness ......
采用金相、扫描电镜方法对电子束焊接的乙烯裂解炉管焊缝开裂进行了分析.分析结果显示,电子束焊接过程中形成了垂直柱状晶,焊缝的......
针对国产脉动真空灭菌器内腔焊缝处多次开裂的现象,围绕焊接残余应力及消除方法进行了系列研究.根据市场上灭菌器异种钢间断角焊缝......
焊缝缺陷是造成压力管道失效和事故的主要原因,缺陷的存在势必会影响到压力管道的运行,因此管道焊缝缺陷评定对于核电厂管道的安全......
Weld bead morphology plays an important role in welding procedure specification and welding process planning.In order to......
Weld bead morphology plays an important role in welding procedure specification and welding process planning.In order to......
随着机械加工与制造行业的迅速发展,焊接已被广泛运用于结构件的成型连接中。目前多采用人工方式进行焊接和焊缝质量检测,生产效率......
Load-carrying capacity and practical calculation method for hollow cylinder joints connected with H-
A type of hollow cylinder joints connected with H-shaped beams is proposed for spatial structures. Based on von Mises yi......
This paper describes a way to improve the weld quality through suppressing the porosity formation and restraining the g......
This paper is to represent new algorithms to predict process parameters on top-bead width in robotic gas metal arc(GMA) ......
Study on the microstructure of 12%chromium low carbon stainless steel in a high temperature heat-aff
Coarsening,embrittlement and corrosion sensitization in a high temperature heat-affected zone(HTHAZ) are the major probl......
Arc pressure is one of the key factors for variable polarity plasma arc(VPPA) and welding pool formation. In this paper,......
Study on the J-Integral and Failure Assessment Line of Electron Beam Welded Thick TC4-DT Alloy Joint
The effects of strength mis-matching on J-integral and failure assessment line (FAL) of electron beam welded thick TC4-D......
Limit loads are widely studied and several limit load solutions are proposed to some typical geometry of weldments.Howev......
针对某中国改进型三环路压水堆(CPR1000)反应堆压力容器(RPV)出口接管与法兰接管段简体焊接接头在制造阶段超声检验(UT)合格,而役......
Austenitic stainless steels are usually chosen to make many components of nuclear power plants(NPPs).However,their micro......
Micromechanical Analysis of In-Plane Constraint Effect on Local Fracture Behavior of Cracks in the W
In this work, a set of GTN(Gurson–Tvergaard–Needleman) parameters of the Alloy52 M dissimilar metal welded joint(DMWJ)......
Microstructure characteristics and mechanical properties of steel stud to Al alloy by CMT welding-br
Cold metal transfer(CMT) welding of nickel-coated Q235 steel studs with 6061 Al alloy was carried out using ER4043 as fi......
以15mm的板厚为研究对象,采用高氮奥氏体钢进行激光焊接,研究气孔和裂纹对高氮钢激光焊接力学性能的影响。结果表明:在试件自然气......
超声TOFD检测方法在厚大焊缝的检测中具有较强的优势，特别是对裂纹类的缺陷，其检出效率高。为满足工程现场检测的需要，开发了基于USB......
The main aim of this study was to investigate liquation cracking in the heat-affected zone (HAZ) of the IN939 superalloy......
为研究钢结构梁柱翼缘连接焊缝对侧板加强型节点发生断裂可能性的影响，在考虑焊接残余应力的基础上，对指定路径的断裂指标分布规律进......
MICROSTRUCTURE TRANSFORMATION IN THE WELDING HEAT AFFECTED ZONE OF 800MPa GRADE ULTRA FINE STRUCTURE
The transformation behavior and microstructure development in the heat affected zone(HAZ) of 800MPa grade ultra fine st......
为了准确模拟对接焊缝的温度场,在分析前人关于双椭球热源模型参数选取方法的基础上结合相关的计算经验提出了比较完善的双椭球热......
The influence of rare earths (RE) on carbides in high carbon steel weld metal was studied by transmission electron micro......
通过对事故现场勘查,检验测试了失效部件的焊接状况,验证计算了焊缝强度,分析了断口及焊缝微观组织的状态,多维度展开事故调查分析......
Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containi
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
The applicability of Ce and Y as promising candidate elements to form irreversible traps in weld metal was investigated ......
The 10Ni5CrMoV steel examined was a 16 mm thick plate. Specimens measuring 12 mm × 12 mm × 120 mm were thermally cycle......
β(支管与主管外径比)较大的焊接方钢管T型节点因主管连接焊缝韧性差和质量缺陷等因素,可能因焊缝开裂而导致节点丧失承载力。本文......
The foreign experimental and FEM research of steel moment-resisting connection reinforced with steel plates are introduc......
Pitting and galvanic corrosion behavior of stainless steel with weld in wet-dry environment containi
Accelerated corrosion test of stainless steel with weld was carried out to investigate the corrosion behavior under the ......
Factors that affect weld mechanical properties of commercially pure titanium have been investigated using artificial neu......
Through the addition of rare earth oxides into the coating of electrodes, the high temperature oxidation and sulphidatio......
This review provided some recent progress of the research on corrosion mechanisms of magnesium and its alloys and a basi......
为实现某大型水平轴风力机塔筒顶部焊缝的抗极限与疲劳强度设计,建立塔筒顶部的有限元模型。模型充分考虑螺栓预紧力、轴承刚度、......
通过对水套炉爆破事故基本事实了解的基础上,结合宏观观察、现场密封试验、母材及焊缝金相组织分析、泄漏点截面金相和扫描显微观......
All-position robots are widely applied in the welding of complicated parts. Welding of intersecting pipes is one of the ......
Effect of weld microstructure on brittle fracture initiation in the thermallyaged boiling water reac
Effects of the weld microstructure and inclusions on brittle fracture initiation are investigated in a thermally aged fe......
飞机的发动机后壳体主要由蜂窝座和钣金件焊接而成,在焊接的过程中很容易出现焊缝的质量问题而影响飞机的安全飞行。处理航空发动......
Gate Optimization Analysis of Injection Molding for Mobile Phone Panel Based on Moldflow and Drop Si
Aiming at the gate design problem of a mobile phone panel, the plastic forming analysis software Moldflow and drop simul......
针对失效乙烯球罐及其管线,依次对管线焊缝及法兰开展了检测分析,结合宏观检查、化学成分分析、能谱分析及金相分析,查找造成乙烯......
某电厂1号锅炉在整套启动运行过程中发生了水冷壁管泄漏,为了查明泄漏原因,利用宏观形貌分析、化学成分分析、金相组织检测及力学......
国内外标准对母材、热影响区、焊缝静强度与疲劳强度评估方法不同,文中对各标准进行了对比。各标准均存在问题,未规定点焊接头的疲......
通过开展AUT检测评定技术研究,优化评定工艺技术,提高了焊缝AUT检测评定质量,为油气长输管道工程的焊缝质量检测提供技术支持。......
基于DVS 1612标准,提出一种基于主应力和最大剪应力的疲劳评估修正算法,并针对某转向架构架进行焊缝疲劳强度评估。该修正算法计算......
全焊接板壳式热交换器保持了普通板式换热器传热效率高、结构紧凑的优点，可以在更高的温度和压力下使用，具有高效经济的特点。以兰州......
