摘要
本文根据试验结果，分析讨论了焊后热处理、母材及焊材对3．5％Ni钢焊接接头低温韧性的影响。结果表明：适当规范的焊后热处理可明显改善接头区的组织，提高低温韧性；在相同的焊接工艺及焊后热处理条件下，不同的母材和焊材，其接头组织及其中的碳化物含量有差异，从而具有不同的低温韧性。
Based on experimental data and analyses, the effects of PWHT, base metal and welding material on the low temperature toughness of 3.5%Ni steel welding joints are discussed in this article. The results show that proper PWHT can apparently improve the microstructures of the welding joints, and benefit the low temperature toughness;and that the microstructures and contents of the carbide in the welding Joints are different for different base metals and welding materials, resulting in different low temperature toughnesses
出处
《压力容器》
1997年第4期8-14,共7页
Pressure Vessel Technology
