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ZHAO Haiyang, GAO Duolong, ZHANG Tong, LV You, ZHANG Yupeng, ZHANG Xinxin, SHI Xin, WEI Xiaojing, LIU Dongmei, DONG Zehua

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Fig.3 SEM micrographs of the WAAM thin wall structure: (a) general view, (b) MPZ, (c) PMB, (d) HAZ