heat diffusion zone

基本解释

The diffusion zone width of main alloying elements increases and hardness of the friction weld zone near TC4 titanium alloy side improves after post-weld heat treatment.
经焊后回火热处理后，主要合金元素沿焊合区的扩散区宽度增大；焊合区钛合金侧硬度值显著提高。
The bonding and diffusion characteristics at the interface of welding layer and substrate, and the heat-affected zone were analysed as well. It was proved that the micro-area pulse spot welding is an…
分析了焊补层与基体间的结合特点、扩散情况及热影响区，证明微区脉冲点焊是一种操作简便、性能可靠的模具修补新技术。