The development of super-high collapse resistant casing  

作　　者：Tian Qingchao Dong Xiaoming 

机构地区：[1]Steel Pipe Division,Baosteel Research Institute ,Baoshan Iron ＆ Steel Co. ,Ltd. , Shanghai 201900, China

出　　处：《Baosteel Technical Research》2008年第2期21-25,共5页宝钢技术研究（英文版）

摘　　要：Super-high collapse resistant casings were developed by using Ti, Nb and V microalloyed CrMo steel and cross rolling techniques. A transmission electron microscope（TEM） and X-ray diffractometer were used to observe the characteristics of the microstructure. It was found that the （ 111 ） texture and the nano-scale precipitates distribute in a way that is beneficial to the collapse resistance, and the collapse strength of the prepared casing had a measurement, which was approximately 60% higher than the API standard value. A design concept to attain super-high collapse resistance is proposed based on the texture design and microstructure control.Super-high collapse resistant casings were developed by using Ti, Nb and V microalloyed CrMo steel and cross rolling techniques. A transmission electron microscope（TEM） and X-ray diffractometer were used to observe the characteristics of the microstructure. It was found that the （ 111 ） texture and the nano-scale precipitates distribute in a way that is beneficial to the collapse resistance, and the collapse strength of the prepared casing had a measurement, which was approximately 60% higher than the API standard value. A design concept to attain super-high collapse resistance is proposed based on the texture design and microstructure control.

关 键 词：super-high collapse resistance casing TEXTURE precipitation hardening 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业] TF1[冶金工程—冶金物理化学]