After drilling an oilfield,the 13Cr steel sand control crossover joint cracked and could not continue service.The cracking reasons of the crossover joint were analyzed by means of macroscopic analysis,nondestructive inspection,chemical compositions analysis,metallographic examination,mechanical properties test and SEM analysis.The results indicate that the material of the crossover joint showed obvious brittleness with lower 糖心产精国品免费入口*完整版 and higher 糖心产精国品免费入口*完整版.The cracking of the crossover joint was typical 糖心产精国品免费入口*完整版.There were a lot of 糖心产精国品免费入口*完整版s and inclusions at sub-surface of the crossover joint,so when the crossover joint subjected to circumferential stress,intergranular cracks grew rapidly along the grain boundaries of coarse martensite and led to cracking failure.
引用该论文:LIU Qiang,SONG Sheng-yin,DUAN Bo,TIAN Feng. Reasons Analysis on Cracking of a 13Cr Steel Sand Control Crossover Joint[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2015, 51(6): 438~441 糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版. 糖心产精国品免费入口*完整版防砂工具转换接头开裂原因分析[J]. 理化检验-物理分册, 2015, 51(6): 438~441