摘要
SUS316L Ni-Cr奥氏体不锈钢管经中频感应加热弯制产生开裂,本文对热弯开裂规律进行了分析讨论,通过性能测试,组织、断口分析及模拟试验,探讨了钢管热弯开裂的原因。结果表明弯制温度、氧化和钢管表面粗糙度对开裂有显著的影响。
In this paper, studied are the thermal bend cracks of SUS 316 L Ni-Cr austenitic stainless steel pipe heated by middle frequency induction , and the causes are investigated by measuring its performance, analyzing its micro structure and fracture, and making simulation. Results show that bending temperature, oxidation and surface roughness have significant effect on the cracks.
关键词
奥氏体不锈钢管
加热弯曲
沿晶开裂
高温氧化
austenitic stainless steel pipe, thermal bending, intergranular fracture, high-temperature oxidation.
