The toughness of HAZ is higher than base metal under appropriate laser welding conditions.
在合适的激光焊接条件下，热影响区韧性高于母材；
The main factor affecting toughness of HAZ is the configuration and distribution of bainite.
影响HAZ韧性的主要因素是贝氏体的形态和分布。
Next, consider the effect of the thickness of plates on the microstructure and hardness in HAZ.
并藉著板厚的改变探讨其对热影响区之金相组织与硬度造成之影响。
Toughness distributions of different area on HAZ of grade X80 pipeline steel have been studied.
研究了X80级管线钢焊接热影响区不同区域的韧性分布。
Thermal cycling is an important factor to determine structure and property of HAZ after welding.
热影响区的热循环是决定焊后热影响区组织和性能的重要因素。
The microstructures of weld metal and HAZ under different thermal cycle are analyzed correspondingly.
分析了在不同焊接热循环条件下相应的部分易淬火钢焊缝及热影响区的显微组织。
The microstructure evolution in HAZ of Welds is a complex procedure, which associates with many factors.
焊接热影响区微观结构演化与诸多因素密切相关，是一个复杂的过程。
It is an effective way to improve the properties of HAZ by adopting multilayer welding and technical weld.
多层焊和工艺焊缝是改善HAZ性能的有效途径。
The use of welding simulation different temperature on the welding HAZ toughness variation has been studied.
采用焊接热模拟方法研究了不同温度退火时热影响区韧性的变化。
The research shows that the game model has a perfect Bayesian Nash equilibrium and the existing of moral haz.
研究表明，博弈模型存在某种形式的精炼贝叶斯纳什均衡，而且道德风险的存在会使保险单价格上升。
The mechanism of SCC in HAZ of specimens was analyzed by the microstructure variation and electrochemical theory.
并利用显微组织变化和电化学理论分析了焊缝试样HAZ的SCC机理。
Weld thermal cycle simulation was used to reproduce the structure in the HAZ of single run and multi-layer welding.
采用焊接热模拟再现了单道焊和多层焊haz的组织。
The simulations of austenite grain growth in HAZ of ultra-fine grain steel make foundation for future research work.
本文的研究结果将有助于新一代钢铁材料焊接HAZ组织模拟的进一步研究。
The fine grain and narrow HAZ were found in friction stir weld and the dynamic recrystallization produces fine grain.
焊核区由于动态再结晶具有细小的等轴晶粒，旁边存在一个特殊的组织形貌——热机影响区域。
On the basis of above experiment, fracture mechanism of X60 over-heated HAZ was given using the theory of slip line field.
在上述实验结果的基础上，采用塑性滑移线场理论，提出了X60过热区在不同服役温度下的断裂机理。
With large welding heat input, more upper Bainite and granular Bainite form, which is benefit to improve the property of HAZ.
采用大的线能量焊接，形成较多的上贝氏体和粒状贝氏体组织，对改善接头性能有利。
In this paper, MC technique is adopted to simulate the process of grain growth in HAZ and predict final grain size distribution.
为此，本文采用MC法对焊接热影响区的晶粒生长过程进行模拟，预测焊接热影响区的最终晶粒尺寸分布。
The results indicate that HAZ produced during welding of grade X80 steel is made up of grads structure under different temperature.
结果表明，X80级管线钢在焊接过程中形成的热影响区由不同温度下形成的梯度组织组成。
It analyses quadratic phase stainless and its metal compound generated from weld seam and HAZ, which affect welded pipe usage property.
分析了双相不锈钢及其焊缝和热影响区中产生的金属间化合物等二次相对焊管使用性能的影响。
The results show that toughness of the coarse grained HAZ is improved after second welding heat cycle except intercritical two-phase heating.
力学性能测试结果表明，除在临界二相区加热外，二次热循环均使粗晶区得到初化。
If the design is based on the strain hardened properties, the allowable design stress will usually be above the actual yield point of the HAZ.
如该设计基于应变硬化性能，设计应力通常在HAZ实际屈服点以上。
The temperature field in welding HAZ was studied and analyzed. Welding heat curve was set up by argon-shielded tungsten arc welding experiment.
通过钨极氩弧焊试验，对焊接热影响区温度场进行分析和研究，建立了焊接热循环曲线。
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。
The practical measurement results showed that the formulas established for calculating the hardness of real HAZ and thermal simulated HAZ are reliable.
经实测验证证明，所建立的HAZ硬度计算公式及热模拟haz硬度计算公式是可靠的。
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。
The results show that the graphitization of the bent, HAZ and tee of the main steam pipeline stand is severe, and the relevant components should be replaced.
结果表明，该主蒸汽管道的弯头、焊缝热影响区和三通等部位石墨化严重，部分部件需要更换。
In this paper the HAZ weld thermal cycles of the welding by both sides submerged arc welded steel pipe were reproduced by the dislocation overlap weld method.
采用焊道错位叠加方法，再现了螺旋管双面埋弧焊制管过程中内、外焊焊接热影响区(HAZ)的焊接热循环。
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。
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。
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