Acoustic Emission Monitoring the Fatigue Crack Growth in SM50B-Zc Steel
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG1990年第5期
论文作者：朱祖铭 王中光 蓬钧
文章页码：345 - 350
摘 要：<正> The acoustic emission（AE）characteristicsfrom the fatigue crack propagation in SM50B-Zcsteel were strongly affected by the environment me-dium.The AE feature from the fatigue process bothin air and in 3.5% NaCl aqueous solution mani-fested a periodicity which indicated the fatigue ex-tension was discontinuous.The fatigue striationand secondary cracking were the main AE sourcesduring the fatigue crack growth in air.In contrast,AE during the fatigue crack propagation in 3.5%NaCl solution was released from the intergranularfracture and quasicleavage cracking.
朱祖铭，王中光，蓬钧
摘 要：<正> The acoustic emission（AE）characteristicsfrom the fatigue crack propagation in SM50B-Zcsteel were strongly affected by the environment me-dium.The AE feature from the fatigue process bothin air and in 3.5% NaCl aqueous solution mani-fested a periodicity which indicated the fatigue ex-tension was discontinuous.The fatigue striationand secondary cracking were the main AE sourcesduring the fatigue crack growth in air.In contrast,AE during the fatigue crack propagation in 3.5%NaCl solution was released from the intergranularfracture and quasicleavage cracking.
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