Effect of High Temperature Welding on Fatigue Life of 16MnR Joint

doi:10.3696/j.issn.1672-6952.2011.01.007

Journal of Liaoning Petrochemical University ›› 2011, Vol. 31 ›› Issue (1): 25-27.DOI: 10.3696/j.issn.1672-6952.2011.01.007

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Effect of High Temperature Welding on Fatigue Life of 16MnR Joint

YANG Jun^1,2, SONG Tian-min¹, GUAN Jian-jun^1*

1.School of Mechanical Engineering, Liaoning Shihua University, Fushun Liaoning 113001, P.R.China;
2. Commercial Department of PetroChina Sichuan Petrochemical Co., Ltd., Chengdu Sichuan 610036, P.R.China

Received:2010-06-30 Published:2011-03-25 Online:2017-07-05

高温焊接对16MnR钢疲劳寿命的影响

杨军^1,2,宋天民¹,管建军^1*

1.辽宁石油化工大学机械工程学院,辽宁抚顺113001;2.中国石油四川石化有限责任公司商务部,四川成都610036

作者简介:杨军(1965-),男,山东莱州市,工程师,硕士。

Abstract

Abstract:

Welding residual stress test and fatigue life experiment on 16MnR specimens welded by high-temperature welding process were studied in this article. It was indicated that the process could decrease welding residual stress and increase fatigue life dramatically. The maximum of the longitudinal residual stress of specimens welded by high-temperature welding process at 750 ℃ and 850 ℃ were decreased by 55% and 68%, respectively, and the fatigue life of specimens welded by high-temperature welding process at 750 ℃ and 850 ℃ was decreased by 50% and 98%, respectively, as compared with those of the specimens welded by normal-temperature welding process. The reason for the advantages of the high-temperature welding process was analyzed, and demonstrated its feasibility.

Key words: High-temperature Welding process , , Fatigue life , , Residual stress

摘要： 对高温焊接16MnR钢试件做了焊接残余应力测试和疲劳寿命试验。结果表明,高温焊接可显著降
低焊接残余应力和提高疲劳寿命。750 ℃和850 ℃高温焊接比常温焊接的纵向残余应力最大值分别降低55%和
68%,750℃和850℃高温焊接比常温焊接试件的疲劳寿命分别提高50%和98%。对高温焊接的这些特点的原因
做了分析,认为该方法是比较可行的。

关键词: 高温焊接 , , 疲劳寿命 , , 残余应力

YANG Jun, SONG Tian-min, GUAN Jian-jun. Effect of High Temperature Welding on Fatigue Life of 16MnR Joint[J]. Journal of Liaoning Petrochemical University, 2011, 31(1): 25-27.

杨军,宋天民,管建军. 高温焊接对16MnR钢疲劳寿命的影响[J]. 辽宁石油化工大学学报, 2011, 31(1): 25-27.

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Effect of High Temperature Welding on Fatigue Life of 16MnR Joint

高温焊接对16MnR钢疲劳寿命的影响

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