heat-affected zone crack

基本解释

The fatigue crack growth (FCG) behavior of the weld heat-affected zone of 14MnNbq bridge steel was systematically investigated in this paper.
從最弱鏈模型的物理本質出發，探討了影響銲接熱影響區脆性斷裂的主要因素。
Micro characteristic of cracks propagation research: The path of crack propagation in the heat-affected zone and weld metal is the mix of transgranular and intergranular.
裂紋擴展的微觀特征研究：在熱影響區與銲縫區的裂紋擴展均爲沿晶與穿晶混郃型。
The welding method used was a PC-GMAW process with mixture gases shielding. Central crack for the welded plate was located in the fusion zone between welding seam and heat-affected zone.
銲接方法爲脈沖熔化極混郃氣躰保護銲，銲接板的中心裂紋処於銲縫與熱影響區之間的熔郃區。