The hardness of weld region shows'less variation than base metal and the ultimate tensile strength of TMAZ is almost 20% improvement.
焊缝区的硬度值波动范围很小，抗拉强度比母材增加约20％。
The main region of invalidation of the weld joint between different steels is commonly in fusion zone during welding or serving.
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 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 influence of welding thermal cycle on structure and properties in grain-coarsening region of X80 pipeline steel was investigated by weld thermal simulation technique and the charpy test.
采用焊接热模拟试验和冲击试验，研究了X80管线钢焊接热循环对粗晶区组织性能的影响。
A method of the noise reduction, region segmentation and welding defects extraction was proposed accerding to weld image of X-ray linear array detector real-time scanning.
前言： 针对X射线线阵探测器实时成像的焊缝图像，提出了降噪处理、焊缝图像分割及缺陷检测的方法。
A method of the noise reduction, region segmentation and welding defects extraction was proposed accerding to weld image of X-ray linear array detector real-time scanning.
前言： 针对X射线线阵探测器实时成像的焊缝图像，提出了降噪处理、焊缝图像分割及缺陷检测的方法。
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