并分析了焊接接头残余应力的分布规律。
The distribution of residual stress of weld joints is analyzed.
焊接接头的硬度与母材匹配，平直度良好。
The hardness of weldjoints is matched with that of the parent material.
研究了超细晶粒钢筋焊接接头的组织和力学性能。
The microstructure and mechanical properties of welded joint of ultra-fine grained rebar were studied.
焊接接头强度、塑性均可达到与母材相当的水平。
The strength and plasticity of welds were equivalent to the base metal.
无损探伤是对结构和焊接接头进行检验的主要手段。
NDT is the primary method to check the structures and weld joints.
分析了插销焊接接头的组织和插销试样的断口形貌。
Microstructure of the joints and fracture morphology of implant samples were analyzed.
结论：合适的激光功率是取得理想激光焊接接头的关键。
CONCLUSION: the optimal laser irradiation power was the key to achieved superior mechanical properties joints.
金属材料的焊接性主要决定于焊接接头的组织及其性能。
Welding of metallic materials is mainly determined by the organization and properties of welded joints.
研究了奥氏体不锈钢焊接接头在不同酸性介质中的腐蚀行为。
The corrosion behavior of austenite stainless steel weld joint in the different acidic medium was studied.
基于线性界面断裂力学，提出了焊接接头的新模型—多层模型。
Based on Linear interfacial Fracture Mechanics, a new welding joint model-multi layered interfacial model is proposed in this paper.
分析了海洋平台结构焊接接头的缺陷及各种缺陷的危害、成因。
The defects of welding joint for Marine platform structure, the harm and the cause of every defect were analyzed.
所有对接、T型槽和弯管接头都要完全侵入连接到焊接接头上。
All butt, grooved t, and corner joints shall be complete joint penetration weld joints.
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。
This provides a certain theory and criterion for us to further research the fracture-resistant capability of welded joint .
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。
Optimization design method of welded structure was put forward with welded joint fatigue damage as constraints.
因此，在非均质焊接接头中直接应用J积分作为断裂判据不合适。
So, it is doubtful to directly use the J -integral as a fracture criterion in heterogeneous welded joints.
在多种板厚条件下获得了良好的激光填丝和激光电弧复合焊接接头。
Satisfied laser wire welded joints and laser-arc hybrid welded joints were obtained at several plate thicknesses.
经实验发现细晶粒碳钢焊接接头拉伸试验断口在远离热影响区的母材上。
It is found that the weld of fine grain steel break apart from heat effect zone in the tensile test.
研究了高强度细晶粒碳素钢焊接接头熔合区附近的显微组织及精细结构。
The microstructure and fine structure of weld fusion zone for high strength fine grain steel were studied.
异种钢焊接接头在焊接时或使用期间，发生失效的主要区域通常在熔合区。
The main region of invalidation of the weld joint between different steels is commonly in fusion zone during welding or serving.
焊接接头的塑性变形试验在油压机上进行，变形过程中采用了双保温措施。
Experiment of plastic deformation is done on press and double heat preservation measure is used during plastic deformation.
介绍了一种应用于钢管焊接接头检验的射线透视系统的设计原理与实现方法。
The design principle and realization method of a new kind of radiographic welding seam inspection system for steel tube were introduced.
以可靠性理论为基础，制定了电站锅炉蛇形管焊接接头的加速寿命试验规范。
Based on reliability theory, the specification of accelerate life test for friction welded joints in boiler snake pipe was worked out.
焊后热处理可以较好地改善焊接接头的韧性，但存在耗能大、工时长等问题。
The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.
结果表明，合理选择焊接接头形式和焊接工艺可以成倍地提高结构的疲劳寿命。
The results show that the proper selection of modes of welded joints and welding technologies can double improve the fatigue life of structures.
同时总结了一套计算焊接预热温度确定方法和焊接接头匹配的选取原则与方法。
In addition, a calculating method on welding preheating temperature and a selective principle and method on welding component matching are concluded.
结果表明焊接接头裂端应力三轴性随焊缝和母材匹配性质及裂纹几何不同而变化。
The numerical results show that the stress triaxiality varies with the mis matching mode and crack geometry of welded joints.
本文介绍了俄罗斯焊接学者关于影响铝合金焊接接头性能的若干因素的研究点滴。
Some researches of influential several factors of welding join properties of aluminum alloy by Russia scholar was introduced.
工艺试验表明，该设备能实现脉冲闪光对焊的要求，焊接接头能够满足使用要求。
It shows by the process that the equipment can meet the requirements of flashing butt welding.
焊接过程电弧稳定，焊接接头熔合良好，未见裂纹、 未焊透、夹渣、气孔等缺陷。
This process showed a stable arc, good welding joints without any gas pores and cracks.
焊接过程电弧稳定，焊接接头熔合良好，未见裂纹、 未焊透、夹渣、气孔等缺陷。
This process showed a stable arc, good welding joints without any gas pores and cracks.
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