喷瓷管道基体的金属组织及性能
Metal Organization and Performance of Base Material of Spraying Porcelain Pipe
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- DOI:
- 作者:
- 王勇1, 韩涛1
Wang Yong1
- 作者单位:
- 1. 天津大学 300072 天津市;
2.石油大学 257062 山东省东营市
- 关键词:
- 管道;喷涂;陶瓷;金属;性能;热模拟
Pipe line;Spray coating;Ceramic;Metal;Performance;Thermal simulation
- 摘要:
- 对喷瓷管道基体金属试验研究表明,喷瓷前后基体金属的组织和性能基本无变化,但断口形貌不同,原基体金属的拉伸断口为纯韧窝状,喷瓷后为韧窝＋微区解理断裂,且局部存在二次裂纹。经过焊接热循环作用后,基体金属的组织和性能发生显著的变化,峰温达７００℃时,基体金属中产生了大量晶间裂纹。
The base metal' s microstructure and performance of sprayed porcelain pipe are studied. The results show that there are no obvious variations in the microstructure and mechanical performances, but has difference in their fracture: the one without porcelain coating is dimple rupture, the other with porcelain coating is dimple rupture with a little cleavage fracture. After welding cycling, the base metal's microstructure and performance change markedly. At peak temperature 700℃, there are lots of cracks along the grain boundary.1999,4(4): 6-7 收稿日期：1999-1-11参考文献：
1 邵文古，王理泉.金属-玻璃(釉)热喷复合防腐管道，中华人民共和国发明专利，CN1051075A
2 王勇.喷瓷管道及其焊接性能试验.石油工程建设，1997，23(5).