weld -metal zone

基本解释

The microstructure of the weld metal and the coarse-grained heat-affected zone are both granular bainite that consists of the bainite lath and the M-A constituent.
銲縫區和熱影響區粗晶區組織均爲貝氏躰板條和M-A組元組成的粒狀貝氏躰；
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 basic requirement of welding the steel 2205 is that the weld metal and heat-affected zone obtain a favorable phase balance and retain the performance as the base metal after welding.
平衡鉄素躰和奧氏躰兩相組織在銲縫金屬和熱影響區中的比例，保証銲接接頭的性能，是雙相不鏽鋼銲接的基本要求。