Nitrogen distribution in molten pool of gas pool coupled activating TIG welding with rapid cooling method

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	Nitrogen distribution in molten pool of gas pool coupled activating TIG welding with rapid cooling method
	Huang, Yong 1,2; Zhang, Zhiguo 1; Wang, Yanlei 1
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2015-02-25
卷号	36 期号:2 页码:31-34
关键词	Chemical activation Cooling Gas welding Inert gas welding Activating TIG welding Distribution Element distribution Metallographic structure Molten pool Nitrogen content Nitrogen distribution Rapid cooling method
ISSN号	0253360X
英文摘要	Rapid cooling method is used to cool the high temperature molten pool of gas pool coupled activating TIG welding of stainless steel. By controlling the onset cooling time, the distribution of nitrogen element in molten pool can be retained without affecting the weld appearance. AES is employed to study the nitrogen element distribution in different parts of the molten pool, respectively. The cross-section appearances and metallographic structures of the molten pool metals cool rapidly show that the effect of rapid cooling method is perfect if the molten pool is cooled at 0.6 s before arc being extinguished. The results of the AES analysis indicate that the nitrogen element distributes uniformly as the whole in the depth direction of the molten pool, while fluctuates sharply in local zone. The average nitrogen contents on the boundary zone in the front and tail parts of the molten pool are slightly higher than that in the central zone, while the average nitrogen content on the boundary zone in the middle part of the molten pool is slightly lower than that in the central zone. The overall average nitrogen content of the tail part is slightly higher than that of the front part, and the overall average nitrogen content of the middle part is between both of them. ©, 2015, Harbin Research Institute of Welding. All right reserved.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112484]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	1.Key Laboratory of Non-Ferrous Metal Alloys and Processing, The Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China 2.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Huang, Yong,Zhang, Zhiguo,Wang, Yanlei. Nitrogen distribution in molten pool of gas pool coupled activating TIG welding with rapid cooling method[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2015,36(2):31-34.
APA	Huang, Yong,Zhang, Zhiguo,&Wang, Yanlei.(2015).Nitrogen distribution in molten pool of gas pool coupled activating TIG welding with rapid cooling method.Hanjie Xuebao/Transactions of the China Welding Institution,36(2),31-34.
MLA	Huang, Yong,et al."Nitrogen distribution in molten pool of gas pool coupled activating TIG welding with rapid cooling method".Hanjie Xuebao/Transactions of the China Welding Institution 36.2(2015):31-34.