摘要
在Gleeble-3500热模拟试验机上对HFW焊接套管进行热形变试验,研究形变温度和形变量对HFW焊接套管组织及性能的影响规律;研究了热张力减径+调质热处理对HFW焊接套管组织及性能的影响规律。试验结果表明:HFW焊接套管随形变温度的升高和形变量的增大,其母材和焊缝区的组织趋于一致;HFW焊接套管经热张力减径+调质热处理,不仅改善了母材和焊缝区的组织差异,还提升了管体的综合性能。
The laws of effects by deformation temperature and deformation amount on the structure and properties of HFW casing are investigated by means of hot-deformation test to the casing with the Gleeble-3500 thermal simulator. Also studied are the laws of effects by hot-stretch reducing ＋ over-length heat treatment process on the structure and properties of HFW casing. The test results show that along with rising up of the deformation temperature and increasing of the deformation amount, the structure of base metal and that of weld zone are getting consistent with each other, and that thanks to the said combination process, not only the structure difference between the HFW pipe＇ s base metal and its weld zone is reduced, and also the comprehensive properties of the pipe are improved.
出处
《钢管》
CAS
2013年第4期16-26,共11页
Steel Pipe
关键词
HFW
焊接套管
热张力减径
热模拟
形变热处理
形变量
形变温度
HFW
welded casing
hot-stretch reducing
thermal simulation
deformation heat treatment
de-formation amount
deformation temperature
