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对氢蚀前后低碳钢拉伸过程中的声发射（ＡＥ）行为进行了研究．结果表明，氢蚀使低碳钢拉伸过程事件数明显减少，但是高幅声发射信号的振铃计数明显增多．声发射源以显微裂纹长大与连接为主．
The acoustic emission (AE) behavior of low carbon steel before and after hydrogen ablation was studied. The results show that hydrogen erosion significantly reduces the number of low carbon steel during the stretching process, but the ringing counts of the high amplitude acoustic emission signal increase obviously. Acoustic emission source to micro-crack growth and connection-based.