In the paper welded joints with a crack in transverse overmatched weld or HAZ were simplified into a model in which a transverse hard layer contains a crack parallel to the interfaces.
本文将高匹配焊缝或热影响区(haz)淬硬层中含纵向裂纹的焊接接头简化为硬夹层含平行裂纹的力学不均匀体模型。
The influencing rules of the content of alloy elements in nickel-base spraying layer on the microstructure of austenite weld and the crack sensitivity were found.
得到了镍基喷焊层元素熔入量对奥氏体焊缝显微组织及裂纹敏感性的影响规律。
In addition, it is introduced that the layer, impurities and band structure in base material are harmful to the weld quality of ERW steel pipe.
另外介绍了母材缺陷分层、夹杂物、带状组织对ERW焊缝的危害性。
Carbon migration induces the formation of carbon-enriched layer in the austenitic weld metal and carbon-denuded layer in the Cr-Mo steels base metals.
碳扩散的结果是在紧邻熔合界面的焊缝金属一侧形成高硬度的增碳层，母材金属一侧产生硬度较低的贫碳层。
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 problem may be solved by using the gradient transitional layer, within which the composition and microstructure can vary gradiently, as a weld interlayer between ceramic and metal.
在陶瓷与金属间用一定厚度的成分和结构呈梯度变化的梯度过渡层作为连接二者的焊缝层，是解决陶瓷与金属连接时所存在问题的较好措施之一。
Each layer should clean, no defect then continue to weld.
每焊完一遍之后，要认真清渣，发现缺陷，及时清除后，再继续施焊。
It can also avoid pretermission of plating, burnout of zinc layer on weld beam and heat affected zone, and other limitations on the inner surface of fuel tank made of galvanized sheet.
从而避免了传统电镀锌板直接焊接成型油箱内表面漏镀、焊缝及热影响区锌层烧损等缺陷。
The power supply of ac TIG welding can be used to weld aluminium and magnesium which surface has a firm oxide layer.
交流TIG焊接电源可用来焊接铝、镁等表面有致密氧化膜的金属。
It was found that with the increasing of carbon content, the martensite layer the weld bond disappeared, and the sawtooth-like of the partially melted zone widened.
结果发现随碳含量增加，熔合区中的类马氏体层消失，呈锯齿状的部分熔合区增宽。
It was found that with the increasing of carbon content, the martensite layer the weld bond disappeared, and the sawtooth-like of the partially melted zone widened.
结果发现随碳含量增加，熔合区中的类马氏体层消失，呈锯齿状的部分熔合区增宽。
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