| CeF3对自保护药芯焊丝熔敷金属中夹杂物和韧性的影响 |
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| 引用本文： | 喻萍,薛锦,潘川.CeF3对自保护药芯焊丝熔敷金属中夹杂物和韧性的影响[J].机械工程学报,2005,41(1):221-225. |
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| 作者姓名： | 喻萍 薛锦 潘川 |
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| 作者单位： | 西安交通大学材料科学与工程学院,西安,710049;钢铁研究总院焊接研究所,北京,100081 |
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| 摘 要： | 详细研究了CeF3对自保护药芯焊丝熔敷金属中非金属夹杂物尺寸和分布的影响.结果表明,熔敷金属中的主要非金属夹杂物是AlN和Al2O3.药芯中加入CeF3能够细化夹杂物和降低大尺寸夹杂物的数量,加入适量的CeF3能够提高熔敷金属的低温冲击韧度.稀土改变夹杂物在熔敷金属中的尺寸和分布主要是与夹杂物在熔敷金属凝固时的上浮行为有关,稀土能促进大颗粒夹杂物的上浮.
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| 关 键 词： | CeF3 自保护药芯焊丝 夹杂物 冲击韧度 |
| 修稿时间： | 2004年3月2日 |
EFFECT OF CeF3 ON NON-METALLIC INCLUSIONS AND IMPACT TOUGHNESS OF SELF-SHIELDEDLUX CORED WELD |
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| Yu Ping,Xue Jin,Pan Chuan.EFFECT OF CeF3 ON NON-METALLIC INCLUSIONS AND IMPACT TOUGHNESS OF SELF-SHIELDEDLUX CORED WELD[J].Chinese Journal of Mechanical Engineering,2005,41(1):221-225. |
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| Authors: | Yu Ping Xue Jin Pan Chuan |
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| Abstract: | The effects of CeF3 on the sizes and distribution of non-metallic inclusions in weld metal welded with self-shielded flux cored wire are systematically studied. The main non-metallic inclusions in weld metal are A1N and Al2O3. The results show that CeF3 can refine non-metallic inclusions and decrease the amount of large dimension inclusions. And the low temperature impact toughness is improved by adding suitable amount of CeF3 in the flux. This difference in non-metallic inclusions evolution is attributed to the inclusion floating performance during solidification of weld metal. RE can promote such floating out performance. |
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| Keywords: | CeF3 Self-shielded flux cored wireNon-metallic inclusions Notch toughness |
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