裂纹尖端塑性区对304不锈钢脉冲电流止裂的影响

doi:10.13251/j.issn.0254-6051.2020.07.026

金属热处理 ›› 2020, Vol. 45 ›› Issue (7): 130-134.DOI: 10.13251/j.issn.0254-6051.2020.07.026

裂纹尖端塑性区对304不锈钢脉冲电流止裂的影响

张朱武¹, 潘光国¹, 蒋艳², 许承伟¹

1. 福州大学石油化工学院, 福建福州 350116;
2. 福建省锅炉压力容器检验研究院, 福建福州 350008

收稿日期:2019-12-25 出版日期:2020-07-25 发布日期:2020-09-07
作者简介:张朱武(1984—), 男, 副教授, 博士, 主要研究方向为石油化工装备腐蚀与防护, E-mail:zwzhang@fzu.edu.cn
基金资助:
国家自然科学基金(51705077);福建省自然科学基金(2018J01768)

Effect of crack tip plastic zone on pulse current crack arresting of 304 stainless steel

Zhang Zhuwu¹, Pan Guangguo¹, Jiang Yan², Xu Chengwei¹

1. College of Chemical Engineering, Fuzhou University, Fuzhou Fujian 350116, China;
2. Fujian Institute of Boiler and Pressure Vessel Inspection Research, Fuzhou Fujian 350008, China

Received:2019-12-25 Online:2020-07-25 Published:2020-09-07

摘要/Abstract

摘要： 分别对裂纹尖端附近有塑性区和无塑性区的304不锈钢脉冲电流止裂试样进行了显微观察和纳米压痕试验。结果表明,有裂纹尖端塑性区的304不锈钢,在脉冲电流止裂后,止裂处发生了相变和再结晶,在温度场和应力场共同作用下分别形成了凝固区、细晶区和形变诱发马氏体区;而无裂纹尖端塑性区的304不锈钢,裂纹止裂处只有凝固区。纳米压痕试验表明304不锈钢的疲劳裂纹尖端处具有较大的残余应力,且残余应力随着远离裂纹尖端而迅速衰减;经过脉冲电流止裂后,裂纹尖端形变诱发马氏体的产生导致该处体积膨胀,产生相变应力,增大了裂纹止裂处周边的压应力值,这有利于抑制裂纹的二次扩展。

关键词: 304不锈钢, 塑性区, 裂纹止裂, 纳米压痕, 形变诱发马氏体

Abstract: Microstructure observation and nano-indentation test were carried out on crack arresting specimens of 304 stainless steel with and without plastic zone near the crack tip. The results show that phase transformation and recrystallization are found to occur at the crack tip of 304 stainless steel with plastic zone after pulse current arrest, and the solidification zone, fine grain zone and deformation-induced martensite zone are formed under the co-action of the temperature field and the stress field. However, the solidification zone is only occurred in the specimen without the plastic zone. The nano-indentation test shows that the fatigue crack tip of 304 stainless steel has large residual stress, which decays rapidly with the increment of the distance from the crack tip. After pulse current crack arrest, the formation of deformation-induced martensite leads to the increase of both the volume expansion and the compressive stress around the arrest crack, which is beneficial to suppress the crack propagation.

Key words: 304 stainless steel, plastic zone, crack arrest, nanoindentation, deformation-induced martensite

中图分类号:

张朱武, 潘光国, 蒋艳, 许承伟. 裂纹尖端塑性区对304不锈钢脉冲电流止裂的影响[J]. 金属热处理, 2020, 45(7): 130-134.

Zhang Zhuwu, Pan Guangguo, Jiang Yan, Xu Chengwei. Effect of crack tip plastic zone on pulse current crack arresting of 304 stainless steel[J]. Heat Treatment of Metals, 2020, 45(7): 130-134.

参考文献

[1]邓德伟, 于静, 刘倩倩, 等. 裂纹止裂愈合技术发展现状及展望[J]. 机械工程学报, 2016, 52(7): 122-132.
Deng Dewei, Yu Jing, Liu Qianqian, et al. States and prospects of crack arrest and healing technology[J]. Journal of Mechanical Engineering, 2016, 52(7): 122-132.
[2]付宇明, 郭建龙, 郑丽娟. 带有疲劳裂纹的35CrMo构件电磁热止裂强化[J]. 机械工程学报, 2015, 51(4): 66-70.
Fu Yuming, Guo Jianlong, Zheng Lijuan. Crack arrest of 35CrMo component with fatigue crack by electromagnetic heating[J]. Journal of Mechanical Engineering, 2015, 51(4): 66-70.
[3]邓德伟, 刘倩倩, 李晓娜, 等. 脉冲电流对Inconel 625合金裂纹尖端组织及性能的影响[J]. 金属热处理, 2017, 42(3): 52-56.
Deng Dewei, Liu Qianqian, Li Xiaona, et al. Effect of electropulsing on microstructure and properties of Inconel 625 alloy crack tip[J]. Heat Treatment of Metals, 2017, 42(3): 52-56.
[4]Lin H Q, Zhao Y G, Gao Z M, et al. Effects of pulse current stimulation on the thermal fatigue crack propagation behavior of CHWD steel[J]. Materials Science and Engineering A, 2008, 478(1/2): 93-100.
[5]乔桂英, 白象忠, 肖福仁, 等. 单脉冲电流对高速钢裂纹的止裂效果[J]. 金属学报, 2000, 36(7) : 718-722.
Qiao Guiying, Bai Xiangzhong, Xiao Furen, et al. The crack arrest in high-speed steel using single pulse electric current[J]. Acta Metallurgica Sinica, 2000, 36(7): 718-722.
[6]邓德伟, 刘倩倩, 牛婷婷, 等. 脉冲电流对奥氏体不锈钢止裂效果的影响[J]. 热加工工艺, 2015, 44(16): 49-52.
Deng Dewei, Liu Qianqian, Niu Tingting, et al. Effect of pulse current on crack arrest of austenitic stainless steel[J]. Hot Working Technology, 2015, 44(16): 49-52.
[7]范天佑. 断裂理论基础[M]. 北京: 科学出版社, 2003: 105-107.
[8]Hammar O, Svensson U. Solidification and Casting of Metals[M]. London: The Metals Society, 1979.
[9]Schino A D, Mecozzi M G, Barteri M. Solidification mode and residual ferrite in low-Ni austenitic stainless steels[J]. Journal of Materials Science, 2000, 35: 375-380.
[10]Tamura I. Deformation-induced martensitic transformation and transformation-induced plasticity in steels[J]. Metal Science, 1982, 16(5): 245-253.
[11]张朱武, 李炜, 邹松, 等. 脉冲电流作用下熔孔尺寸对止裂性能影响的仿真研究[J]. 福州大学学报(自然科学版), 2019, 47(3): 372-378.
Zhang Zhuwu, Li Wei, Zou Song, et al. Simulation study on effect of weld hole size on crack stopping performance under pulse current[J]. Journal of Fuzhou University(Natural Science Edition), 2019, 47(3): 372-378.
[12]Suresh S, Giannakopoulos A E. A new method for estimating residual stresses by instrumented sharp indentation[J]. Acta Materialia, 1998, 46(16): 5755-5767.

裂纹尖端塑性区对304不锈钢脉冲电流止裂的影响

Effect of crack tip plastic zone on pulse current crack arresting of 304 stainless steel

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