磁记忆技术在氢致开裂性能评价中的应用
Application of the Magnetic Memory Technology in Hydrogen-Induced Cracking Test
摘 要
材料抗氢致开裂性能评价体系中对试验后试样的检测面位置有明确的规定,但氢致裂纹不一定只存在于规定的检测面上,这就导致评价结果的科学性存在疑问.采用磁检测仪对腐蚀试样进行检测,并在磁信号异常部位切取检测面,制备金相试样,观察该检测面是否存在氢致裂纹.结果表明:磁记忆检测技术可以有效提高氢致裂纹的检出率,能够更加客观地评价材料抗氢致开裂性能.
评价体系
磁记忆
Hydrogen-induced cracking
Evaluation system
Magnetic memory
Abstract
The detection faces of specimens after corrosion test are clearly defined in hydrogen-induced cracking test.But there are doubts about that whether the cracks present in the detected faces.The lack of the evaluation system of the hydrogen-induced cracking test methods were discussed.Exposed test specimens were detected by using metal magnetic memory detector.Each test specimen was sectioned for examination in the magnetic signal abnormal parts.The results show that more cracks are detected by using magnetic memory technology,the resistance to hydrogen-induced cracking of materials can be evaluated more objective.
中图分类号 TG115.28 DOI 10.11973/wsjc201507007
所属栏目 试验研究
基金项目
收稿日期 2015/3/16
修改稿日期
网络出版日期
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备注刘燕(1986-),女,硕士,主要从事特种设备用材腐蚀性能评价与研究工作.
引用该论文: LIU Yan,GUAN Wei-he,GUO Peng-ju,KONG Wei-hai,WAN Zhang,FEI Qin-nan. Application of the Magnetic Memory Technology in Hydrogen-Induced Cracking Test[J]. Nondestructive Testing, 2015, 37(7): 29～31
刘燕,关卫和,郭鹏举,孔韦海,万章,费勤楠. 磁记忆技术在氢致开裂性能评价中的应用[J]. 无损检测, 2015, 37(7): 29～31
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参考文献
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【3】REVIE R W,SASTRI V S,HOEY G R.Hydrogen-induced cracking of linepipe steels Part 1-threshold hydrogen concentration and pH[J].Corrosion,1993,49(1):17-23.
【4】NACE TM0284-2011 Evaluation of pipeline and pressure vessel steels for resistance to hydrogen-induced cracking[S].
【5】GB/T 8650-2006 管线钢和压力容器钢抗氢致开裂评定方法[S].
【6】BS EN 10229-1998 Evaluation of resistance of steel products to hydrogen induced cracking (HIC)[S].
【7】王维宗,晁怀瑞,于凤昌,等.炼油常用钢材的抗HIC性能及评价方法的研究[J].炼油技术与工程,2005,35(8):39-42.
【8】李丽菲,沈功田,张万岭,等.低碳钢氢致开裂声发射信号分析与模式识别[J].无损检测,2009,31(10):773-776.
【9】SAGAR S P,PARIDA N.Magnetic barkhausen emission to evaluate fatigue damage in a low carbon structural steel[J].International Journal of Fatigue,2005,27(3):317-322.
【10】戴光,王文江,李伟.不同构件的磁记忆检测及分析方法研究[J].无损检测,2002,24(6):262-266.
【11】郭鹏举,陈学东,关卫和,等.低合金钢拉伸过程中的表面磁信号分析[J].磁性材料及器件,2011,42(5):51-53.
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