It is found that there are solidification cracking within argon arch welding joint between heat exchange pipe and pipe plate and stress corrosion cracking on its surface.
对某台加热器发生泄漏的部位进行了金相、扫描电镜检查，检查出换热管与管板的氩弧焊缝内部存在结晶裂纹且表面存在应力腐蚀裂纹。
And the results provide the theoretical foundation for numerical simulation of stress, strain and hot cracking during solidification.
研究结果充分表明，热节长度、热节温差和热节区温度分布对凝固过程应力和应变有显著的影响，是引起集中变形和热裂纹的决定性因素。
Trans-varestraint test was used to investigate the solidification cracking mechanism of 690 nickel-based alloy surfacing metal.
采用横向可调拘束试验方法研究了690镍基合金焊带堆焊金属的结晶裂纹形成机理。
On the basis of these results, the condition for solidification cracks to form and the mechanisms through which the alloy additions affect the weld metal solidification cracking susceptibility was discussed.
实验结果显示，Zr含量在0.06～0.20wt％范围内增加与Mg含量在5.2～5.6wt％范围内增加都能导致焊缝抗裂能力的提高；但Li含量在0.09～2.1wt％范围内变化未对焊缝凝固裂纹敏感性产生显著影响。
Based on the liquid film theory of hot crack formation and results of numerical simulation of solidification and thermal strains, equivalent strain is proposed to serve as the criterion for hot cracking.
从热裂产生的液膜理论出发，根据凝固过程温度场和应力场、应变场的数值模拟结果，提出了热裂形成的等效应变判据；
Rheological discussion on formation of hot cracking during solidification of casting was conducted.
讨论了铸件凝固过程在枝晶间液体宏观流动补缩停止时，热裂形成的流变学过程。
Influence of Drawing Rate on Formation of Hot Cracking of Aluminium Alloys in Directional Solidification Process
抽拉速率对铝合金定向凝固热裂形成的影响
Rheological Discussion on Formation of Hot Cracking During Solidification
砂型条件下铸件凝固过程热裂形成的流变学探讨
Test method, formation mechanism and influence factor of the solidification cracking during the welding of nickel-based corrosion-resistance materials were introduced as well as the research development of that were previewed.
介绍了镍基耐蚀材料焊接结晶裂纹的试验方法、形成机理及影响因素，并对其研究趋势进行了展望。
Double ellipsoidal heat source model and finite element method were used to analyze 3-D welding temperature distributions and the driving force of weld solidification cracking.
利用双椭球形热源模型研究了SUS310不锈钢的三维焊接温度场，并与实验测量进行了比较。
The electromagnetic stirring (EMS) is effective to refine the grain structure, homogenize the composition, reduce the susceptibility of weld solidification cracking and porosity, improve the ductility and toughness of weld metal.
电磁搅拌焊接方法，可以有效地细化焊缝一次结晶，减小焊缝金属的偏析程度，降低焊缝结晶裂纹和气孔的敏感性，提高焊缝金属的塑、韧性。
The hot-tear tendency, i. e., cracking along the vertical crystal boundary produced in the course of the directional solidification, is the most important indication of the castability to a directionally solidified superalloy.
定向凝固合金可铸性的最重要标志就是它的热裂倾向性，亦即合金在定向凝固过程中产生沿纵向晶界开裂的倾向性。
Compensation of solidification contraction and hot cracking tendency of alloys
凝固收缩补偿与合金的热裂倾向
These results proved that solidification range of alloys is not the only factor influencing weld cracking. The physical and chemical properties of ultimate solidification liquid have also an important effect.
这些结果证明，合金凝固范围宽窄不是影响焊接裂纹的唯一因素，最后凝固液体的物理化学性质具有重要作用。
Numerical Simulation of Weld Stress Strain and Solidification Cracking in Aluminium-Alloy Welds
铝合金焊接凝固过程应力应变及凝固裂纹数值模拟
In this paper, the temperature field of weld metal solidification cracking in the stainless steel was analyzed and simulated.
进行了不锈钢焊接凝固裂纹温度场分析与数值模拟。
3-D numerical simulation of driving force of weld solidification cracking in stainless steel thick plate
不锈钢厚板焊接凝固裂纹驱动力的三维数值模拟
Effect of nickel on solidification cracking in low C low alloy steel weld metal
镍对低碳低合金钢焊缝金属凝固裂纹敏感性的影响
Numerical Simulation of Temperature Fields for Weld Metal Solidification Cracking in Stainless Steels
不锈钢焊接凝固裂纹温度场的数值模拟
Analysis and Simulation of driving force of weld metal solidification cracking
焊接凝固裂纹驱动力的分析与模拟