Comparison of Crystalline Ggrain Size of Ultra Fine Grain Steel and Mild Steel in HAZ;
SCC at HAZ of Vapor Pipes Fabricated by SUS304L Stainless Steel;
Prediction of grain size in the HAZ of the ultrafine grain steel joint;
2) Welding heat affected zone
The effect of helium on the irradiaion damage characteristics and radiation induced segregation at grain boundaries in the welding heat affected zone(HAZ) of Fe-Cr-Mn(W,V) alloy for fusion-fission mixed reactor was investigated by super-high voltage electron microscopy connected with a high energy ion accelerator.
采用高能离子加速器和超高压电镜连接装置 ,研究注入He后电子辐照和同时辐照 (He+ e-)低活性Fe Cr Mn(W ,V)合金焊接热影响区 (HAZ)损伤组织特点 ,测定He对损伤组织内晶界附近合金元素浓度变化的影响。
In frequent bending stress condition,fatigue cracking occurred due to the cracking source had been initiated in welding heat affected zone.
A method of Monte Carlo combined with welding experiments was adopted to study the grain size and microstructure in welding heat affected zone of the ferrite stainless steel.
3) heat affected zone
Microstructure simulation of grain growth in heat affected zone;
In order to study the welding technique of HNS, the microstructure and hardness of heat affected zone (HAZ) of HNS were investigated by simulation on a Gleeble-1500 thermal simulator.
In this paper,the brittle fracture probability of weldments and the fracture toughness of heat affected zone (HAZ) were investigated according to the principle of the weakest link theory.
4) heat affected zone(HAZ)