温度对625镍基高温合金焊接接头低周疲劳行为的影响
王媛媛, 女, 1990年生, 硕士生
修回日期: 2014-05-06
网络出版日期: 2014-12-25
INFLUENCE OF TEMPERATURE ON LOW-CYCLE FATIGUE BEHAVIOR OF INCONEL 625 NICKEL-BASED SUPERALLOY WELDING JOINT
Revised date: 2014-05-06
Online published: 2014-12-25
研究了Inconel 625镍基高温合金焊接接头在 25和 760 ℃下的低周疲劳行为, 分析了2种温度下焊接接头的应变疲劳寿命数据和循环应力-应变数据, 进而给出了合金焊接接头的应变疲劳参数. 结果表明, Inconel 625镍基高温合金焊接接头在不同温度下的弹性应变幅和塑性应变幅与载荷反向周次的关系可分别用Basquin和Coffin-Manson公式来描述. 合金焊接接头在25 ℃下疲劳变形时, 主要发生循环软化, 而在760 ℃下疲劳变形时则呈现循环硬化. 焊接接头的低周疲劳裂纹以穿晶方式萌生于疲劳试样的自由表面, 在25 ℃下疲劳裂纹以穿晶方式扩展, 而在760 ℃下疲劳裂纹则以穿晶和沿晶混合方式扩展.
关键词： Inconel 625镍基高温合金; 焊接接头; 低周疲劳; 位错; 孪晶界
王媛媛 , 陈立佳 , 王宝森 . 温度对625镍基高温合金焊接接头低周疲劳行为的影响[J]. 金属学报, 2014 , 50(12) : 1485 -1490 . DOI: 10.11900/0412.1961.2014.00241
The low-cycle fatigue tests of Inconel 625 nickel-based superalloy welding joints at 25 and 760 ℃ were performed . The strain-fatigue life data and cyclic stress-strain data were analyzed to determine the strain fatigue parameters of Inconel 625 superalloy welding joints. The result showed that the relationship between elastic strain amplitude, plastic strain amplitude and reversals to failure could be described by Basquin and Coffin-Manson equations, respectively. Under the strain control, the continuous cyclic softening was observed at 25 ℃, however, the cyclic hardening appeared at 760 ℃. At 25 ℃, the fatigue crack of Inconel 625 superalloy welding joints initiated transgranularly at the specimen surface and propagated in the transgranular mode. Differently, at 760 ℃, the fatigue crack initiated transgranularly at the specimen surface, but propagated in mixed transgranular and intergranular modes.
| [1] | Yan S C, Cheng M, Zhang S H, Zhang H Y, Zhang W H, Zhang L W. Chin J Mater Res, 2010; 24: 239 |
| [1] | (闫士彩, 程 明, 张士宏, 张海燕, 张伟红, 张立文. 材料研究学报, 2010; 24: 239) |
| [2] | Mathew M, Parameswaran P. Mater Charact, 2008; 59: 5 |
| [3] | Thomas C,Tait P. Int J Pressure Vessels Piping, 1994; 59: 1 |
| [4] | Wang H Y, An Y Q, Li C Y, Chao B, Ni Y, Liu G B, Li P. Mater Rev, 2011; 25: 482 |
| [4] | (王会阳, 安云岐, 李承宇, 晁 兵, 倪 雅, 刘国彬, 李 萍. 材料导报, 2011; 25: 482) |
| [5] | Zhang B, Xiao D M. Mech Res Appl, 2011; (3): 19 |
| [5] | (张 彬, 肖德明. 机械研究与应用, 2011; (3): 19) |
| [6] | Guo Y, Hou S F, Zhou R C. J Chin Soc Power Eng, 2010; 30: 966 |
| [6] | (郭 岩, 侯淑芳, 周荣灿. 动力工程学报, 2010; 30: 966) |
| [7] | Li W Y, Liu H F, Wang T, Zhao S Q. Mater Mech Eng, 2008; 32(7): 46 |
| [7] | (李维银, 刘红飞, 王 婷, 赵双群. 机械工程材料, 2008; 32(7): 46) |
| [8] | Huang Z W, Yuan F H, Wang Z G, Zhu S J, Wang F G. Acta Metall Sin, 2007; 43: 678 |
| [8] | (黄志伟, 袁福河, 王中光, 朱世杰, 王富岗. 金属学报, 2007; 43: 678) |
| [9] | Chen L J, Wu W, Liaw P K. Acta Metall Sin, 2006; 42: 952 |
| [9] | (陈立佳, 吴 崴, Liaw P K. 金属学报, 2006; 42: 952) |
| [10] | Chen L J, Wang Z G, Yao G, Tian J F. Acta Metall Sin, 1999; 35:1144 |
| [10] | (陈立佳, 王中光, 姚 戈, 田继丰. 金属学报, 1999; 35: 1144) |
| [11] | Lord D C, Coffin L F. Metall Trans, 1973; 4: 1647 |
| [12] | Antolovich S D, Liu S, Baur R. Metall Trans, 1981; 12A: 473 |
| [13] | Reuchet J, Remy L. Mater Sci Eng, 1983; A58: 19 |
| [14] | Rao K B S, Schiffers H, Schuster H, Nickel H. Metall Trans, 1988; 19A: 359 |
| [15] | Valsan M, Shastry D H, Rao K B, Mannan S L. Metall Trans, 1994; 25A: 159 |
| [16] | Li S X, Smith D J. Fatigue Fract Eng Mater Struct, 1995; 18: 631 |
| [17] | Hwang S K, Lee H N, Yoon B H. Metall Trans, 1989; 20: 2793 |
| [18] | Liu Y, Chen L J, Wang Z G. Acta Metall Sin, 1999; 35: 955 |
| [18] | (刘 毅, 陈立佳, 王中光. 金属学报, 1999; 35: 955) |
| [19] | Hwang S K, Lee H N, Yoon B H. Metall Trans, 1989; 20: 2793 |
| [20] | Worithem D W, Robertson I M, Leckie F A, Socie D F, Altstetter C J. Metall Trans, 1990; 21: 3215 |
| [21] | Leverant G R, Kear B H. Metall Trans, 1970; 1: 491 |
| [22] | Kim T K, Yu Y, Jeon T Y. Metall Trans, 1992; 23: 2581 |
| [23] | Link T, Feller-Kniepmeier M. Metall Trans, 1992; 23: 99 |
| [24] | Carry C S, Strudel J L. Acta Metall, 1977; 25: 767 |
| [25] | Carry C S, Strudel J L. Acta Metall, 1978; 26: 859 |
| [26] | Portella P D, Bertram A, Fahlbusch E, Frenz H, Kinder J. In: Lutjering G, Mowalk H eds., Proceedings of the Sixth International Fatigue Congress, 1996: 795 |
| [27] | Henderson P J, Lindblom J. Scr Mater, 1997; 37: 491 |
| [28] | Zhang J H, Hu Z Q, Xu Y B, Wang Z G. Metall Trans, 1992; 23: 1253 |
| [29] | Monier C, Bertrand J P, Trichet M F, Cornet M. Mater Sci Eng, 1994; A188: 133 |
| [30] | Mason S S. Exp Mech, 1965; 5: 193 |
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