缺陷圖片供參考

我看主要是層間未熔合和氣孔

英語(yǔ)稱為Elongated Cavities (hollow bead/piping)
摘錄一段原因分析
These will generally only occur at the roots of welds deposited by manual metal-arc.  On the radiograph they have an appearance similar to that of slag.  The radiographic indication usually has rounded ends and is usually situated above the centre of the root bead.

希望樓主每張都有說(shuō)明

很清晰，謝謝分享

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未融合+氣孔+夾渣

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覺(jué)得大多是氣孔和未融合（層間）的