| 熔滴复合电弧增材制造2219铝合金组织与性能 | 
| 王勇超,魏正英,贺鹏飞 | 
| Structure and property of 2219 aluminum alloy fabricated by droplet+arc additive manufacturing | 
| Yongchao WANG,Zhengying WEI,Pengfei HE | 
| 图 9 晶粒形态演化示意图与实验结果 | 
| Fig.9 Schematic diagram of grain morphology evolution and experimental result | 
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