The part of a metal that is not melted during cutting, brazing, or welding, but whose microstructure and physical properties are altered by these processes.
在经过切割、铜焊、焊接后，金属中没有熔融的部分，但其微观结构和物理特性已被改变。
The toughness of weld metal is the highest while the coarse grained region in the HAZ is the lowest because of welding thermal cycle and formation of brittle microstructure.
试验钢由针状铁素体和少量块状铁素体组成，焊缝为典型的针状铁素体组织，焊接热影响区粗晶区以粒状贝氏体为主。
Microstructure and properties of high power laser welding of ship steel plate.
高功率激光焊接船板的组织性能。
By a method of recording of welding currents and time, the information of joint microstructure and properties can be gained according to the welding time with different currents.
利用微机检测焊接电流和时间，运用统计方法获得在不同焊接电流区间的焊接时间，间接给出焊接接头组织性能的状态。
The composition and microstructure of the diamond saw blade joint welded by laser welding were studied using X ray diffraction and SEM, and the mechanical properties of welded joint were measured.
利用x射线衍射分析和扫描电镜，研究了金刚石锯片激光焊接接头的成分和组织，并测试了接头的力学性能。
This papers using experiment and theory studies and discusses dose of explosive welding, microstructure of interface wave and mechanical properties relation of explosive clad plates.
本论文从实验和理论两个方面对爆炸焊接装药量与界面波的组织形状及复合板力学性能间的关系进行了研究和探讨。
To examine chemistry composition and microstructure of steel wire rod for welding of fracture during drawing.
对在拉拔过程中出现断裂的焊接用盘条进行化学成分和金相组织检测。
Meanwhile the optimal welding parameter which was suitable for welding line impact toughness was gained by analysis on the test result of impact toughness and microstructure.
通过对冲击韧性的测试结果与微观组织的分析，确定出使焊缝冲击韧性最佳的焊接工艺参数。
The corresponding relations between temperature field and microstructure of welding zone were validated by comparing simulation results with microstructure morphology.
通过模拟温度场结果与焊缝区组织的比较，验证了不同的温度场与不同焊缝组织的对应关系。
The variation of microstructure and mechanical properties of the welding heat-affected zone of 2090 Al-Li alloy were investigated by means of the welding thermal, simulated and strain cycles test.
采用焊接热模拟试验方法研究了在焊接热循环和应力-应变循环同时作用下，2090铝锂合金焊接热影响区显微组织和力学性能的变化特征。
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。
Microstructure and properties of repaired welding area in large aluminum alloy ZL114A castings by MIG (Metal Inertia Gas) welding technology were studied.
研究了ZL114 A合金大型铸件熔化极气体保护焊(MIG)焊补区域的组织与性能。
The different microstructure caused higher welding hot cracking susceptibility of a alloy.
两种合金焊缝组织的差异造成A合金有更高的焊接热裂纹敏感性。
The influences of welding process parameter and twice thermal cycle on the microstructure and properties of X80 pipeline steel are also investigated in this paper.
本文还研究了焊接工艺参数和二次热循环峰值温度对实验钢x 80组织性能的影响规律。
With SMAW method, the surfaces of A3 and 45 steel were welded by using the series of CHR electrode, and the microstructure and performance of surfacing welding layer metal were analyzed.
借助手工电弧焊方法，使用CHR系列堆焊焊条对A 3、45钢进行堆焊加工，分析了其堆焊层金属的显微组织及性能。
Microstructure and mechanical properties changing rules of 2219 Al-alloy HAZ (heat-affected zone) with twin wire welding were studied using welding thermal simulation method.
采用焊接热模拟试验方法研究了2219铝合金双丝焊热影响区的微观结构和力学性能的变化规律。
By analyzing the relation of microstructure, weld zone quality and tensile property, it is concluded that the welding technological parameter of L245 steel is the main factor of the welding crack.
通过分析l 245钢埋弧焊焊缝区质量、微观组织和拉伸性能关系表明，焊接工艺参数的合理制定是低合金钢l 245焊管产生裂纹等缺陷的关键因素。
Special glue is used on the surface of specimen , forming welding defect, which has little influence on microstructure and mechanical properties of joint.
待焊表面涂抹专用密封胶后，可形成结合线伸入缺陷，但对接头组织和力学性能影响不大。
Mechanical property and microstructure of T91 steel pipe joint with TIG welding on different high-temperature test process was researched.
采用不同的高温试验工艺对T91钢管的TIG焊接头进行处理，分析TIG焊接头在力学性能和显微组织上的差异。
Through hardness test, impacting test, SEM of failure surface and microstructure observation, the relationship between the toughness and its microstructure of welding joint of T92 steel was studied.
通过硬度试验、冲击试验、断口扫描和金相组织观察，研究了T92钢焊接接头的韧性与组织的关系。
The welding process of converter ring was studied. By means of tensile and impact test, fractures and microstructure analysis, the evaluation of the welding process was made.
研究了转炉托圈的焊接工艺，结合拉伸试验、冲击试验、断口和金相组织分析，进行了焊接工艺的评定。
In addition, to weaken the effect of double quenching on the microstructure and properties of ASTM4130 steel, multi-pass welding and temper bead should be adopted.
另外为消除二次淬火对ASTM 4130钢组织和性能的影响，应采用多层多道焊，并添加回火焊道。
A study was carried out on the microstructure of interface and welding seam in dual-metal clad steel pipe. And its inferences on technological and service properties were studied.
通过金相分析、微区成份分析、宏观和微观断口分析，主要研究钎焊层和焊鏠区的微观结构及其对复合钢管工艺性能和使用性能的影响。
The steel with discontinuous flowline microstructure has lower grooving corrosion susceptibility and only single corrosion groove exists along the welding line.
而不连续流线组织的钢板具有较低的沟槽腐蚀敏感性，在焊缝处产生单腐蚀沟槽。
The results show that the microstructure and properties of the welding joints are higher than that of the basic metal. The welding process is fit for welding converter ring.
结果表明，试样焊接接头的组织及综合力学性能均优于母材，焊接工艺基本可行。
The microstructure of welding intracrystalline repair welded with flux does not grow up with increasing time.
涂活性剂焊缝区晶内组织并未因补焊次数的增加而粗大；
The relationship of the welding seam microstructure of the drum cathode and the light region forming on the copper foil surface was studied.
研究了阴极辊焊缝处组织与电解铜箔表面上形成的光亮带之间的关系。
The changes of microstructure in welding zone and its vicinity were observed, and flexural strength of the welding zone was also tested.
观察分析了焊接区及其附近的组织变化，测试了焊接区的室温弯曲强度。
Welding does not occur after pores, collapse, thermal strain and microstructure changes and so on. Significantly reduce post -weld treatment process.
激光焊点直径小、受热范围小，焊后不会出现气孔、塌陷、热应变及金相组织变化等现象，极大减小焊后处理工序。
Welding does not occur after pores, collapse, thermal strain and microstructure changes and so on. Significantly reduce post -weld treatment process.
激光焊点直径小、受热范围小，焊后不会出现气孔、塌陷、热应变及金相组织变化等现象，极大减小焊后处理工序。
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