The microstructure and properties in welded joint were analyzed and researched.
对焊接头的组织与性能进行了实验分析和研究；
In the welding craft, the welded joint position affects one of welding quality factors.
在焊接工艺中，焊缝位置是影响焊接质量的因素之一。
The coarse grain zones of laser welded joint of super fine grain steel show good toughness.
超细晶粒钢激光焊接接头粗晶区有较好的韧性。
The manual welding welded joint inoxidizability surpasses the ultra narrow gap welding joint.
手工电弧焊焊缝耐腐蚀性优于超窄间隙焊焊缝。
Lamellar tearing is one of the main defects in flash-butt welded joint of Al—Zn—Mgallog type 7003.
层状裂纹是7003铝合金挤压材料对焊接头中最主要的缺陷之一。
Mechanical properties of pure titanium laser welded joint were tested by universal testing machine.
采用电子万能试验机测试钛金属激光焊接头的力学性能。
Thermal cycle is an important parameter to influence the mechanical properties of the welded joint.
焊接热循环对焊接接头的性能影响至关重要。
The microstructure and mechanical properties of welded joint of ultra-fine grained rebar were studied.
研究了超细晶粒钢筋焊接接头的组织和力学性能。
Two kinds of welded joint have good crack resistance, impact toughness, stretching and bending performance.
两种焊接接头都具有良好的抗裂性能、冲击性能、拉伸和弯曲性能。
Optimization design method of welded structure was put forward with welded joint fatigue damage as constraints.
提出考虑焊接接头疲劳损伤约束的焊接结构抗疲劳优化设计方法。
The low cycle fatigue property of TA5 Titanium alloy welded joint with different reinforcement was investigated.
分析了TA5钛合金不同余高焊接接头的低周疲劳性能。
Tensile testing, fracture analysis, microstructure analysis, hardness test were carried out on the welded joint.
对焊接接头进行了拉伸强度测试、断口分析、金相组织分析、显微硬度分析。
In order to ensure the use safety of pressure container, we must test the welded joint angularity and stagger joint.
为了保证压力容器的使用安全，必须检测焊接棱角度和错边量。
The results show that the tensile properties of LF6 alloy and its welded joint are greatly affected by low temperature.
研究结果表明：低温对LF 6合金及其焊接接头的拉伸性能具有显著影响。
The effect of welding process on the microstructure and the strength of welded joint is discussed in the present paper.
探讨了焊接工艺过程对气压焊焊接接头显微组织及强度的影响。
The properties of the welded joint may be effectively enhanced by adopting neat multi-layer welding and technical welds.
多层焊和附加工艺焊缝是提高焊接接头性能的有效途径。
The weld zone is the weakest in welded joint due to effects of chemical components of filler and crystallization process.
因焊丝合金化学成分和结晶过程的影响，焊缝处是合金接头的薄弱环节。
The analysis method provides some theories foundation for the safe assessment on welded joint strength in rotation blade.
本分析方法为旋转体焊接接头强度校核提供了一定理论基础。
This provides a certain theory and criterion for us to further research the fracture-resistant capability of welded joint .
这为进一步研究焊接接头的抗断性能分析提供了一定的理论基础。
The stress intensity factors K1 of various position of welded joint were measured by single edge precracked tensile specimen.
用单边预裂纹拉伸试样测定了焊接接头各部位的应力强度因子K1值。
Based on the macroscale and microscale mechanics method, a research on fatigue damage evolution of welded joint is conducted.
用宏观与微观相结合的方法研究焊接接头疲劳损伤演变规律。
The microstructure and properties of welded joint of EH40 grade ship steel plate by submerged-arc welding process were analyzed.
对EH40船板钢埋弧焊焊接接头的组织性能进行了试验分析。
The influence of RE on the microstructure and hardness of welded joint was studied by the experiments adding RE in electrode covering.
通过在药皮中添加稀土合金的试验，研究了稀土对高钒焊条焊补铸铁接头组织与硬度的影响。
This kind of nanostructured surface layer with compressive stress could significantly increase the fatigue strength of butt welded joint.
这种压应力纳米强化层可以明显地提高对接接头的疲劳性能。
The microhardness distribution of the welded joint is along the welding line. The microhardness is higher in nugget zone, and lowest in HAZ.
焊接接头的硬度分布沿焊缝中心基本对称，焊核区硬度较高，热影响区硬度最低。
Porosity is apt to occur in deep penetration laser beam welding, which has severe influence on the mechanical properties of laser welded joint.
针对激光深熔焊过程中易出现的气孔问题，作者提出光束摆动激光焊接减小气孔倾向的工艺。
Welded joint is a mechanical heterogeneous body, and the mechanical heterogeneity has great effect on dynamic fracture behaviour of welded joint.
焊接接头是一个宏观力学不均匀体，力学不均匀性对焊接接头的动态断裂行为有重要的影响。
The results show that the proportion of welded joint which broken in the drawing process was about 64. 1%, and about 35.9% in the roping process.
结果表明：焊接区在拉丝工序中引起的断裂占64.1%，在绞线工序中引起的断裂占35.9%。
In welding test of TCS stainless steel, it was found that impact absorbing energy of heat-affected zone (HAZ) near bond line in welded joint was low.
在TCS不锈钢前期焊接试验中发现其焊接接头热影响区的冲击吸收功值在熔合线附近较低，原因是接头热影响区晶粒粗大所致。
This approach is suitable for prediction of yielding strength in HAZ-softened welded joint as well as for strength design of well-matched welded joint.
这种方法可用于热影响区软化焊接接头屈服强度的预测和高匹配接头的强度设计。
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