强流脉冲电子束作用下20钢的微观结构状态

李艳; 蔡杰; 邹阳; 万明珍; 关庆丰

doi:10.11858/gywlxb.2011.03.012

强流脉冲电子束作用下20钢的微观结构状态

doi: 10.11858/gywlxb.2011.03.012

李艳¹,
蔡杰¹,
邹阳¹,
万明珍¹,
关庆丰^1,2,

1.
江苏大学材料科学与工程学院，江苏镇江 212013；
2.
吉林大学超硬材料国家重点实验室，吉林长春 130012

详细信息

通讯作者:
关庆丰

计量
- 文章访问数: 8109
- HTML全文浏览量: 387
- PDF下载量: 467
出版历程
- 收稿日期: 2010-04-07
- 修回日期: 2010-08-31
- 刊出日期: 2011-06-15

The Microstructures in 0.20%C Carbon Steel Induced by High-Current Pulsed Electron Beam

1.
School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China;
2.
State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China

More Information

Corresponding author: GUAN Qing-Feng

摘要

摘要: 为了研究金属材料的超快变形行为，利用强流脉冲电子束（HCPEB）装置对20钢进行轰击，采用X射线衍射、光学显微镜及透射电镜等技术分析了受轰击样品的变形组织与结构。实验结果表明，强流脉冲电子束能够在材料表层诱发幅值为1 GPa量级的应力，快速的加热和冷却过程在近表层诱发了强烈的塑性变形，并在材料表层内形成了复杂的位错缠结结构和位错胞结构，同时还伴随位错圈等空位簇缺陷的形成，多次轰击导致局部区域形成纳米和非晶结构。HCPBE轰击诱发的幅值极大的应力和极高的应变速率而导致的整个原子平面的位移可能是非晶结构形成的关键原因。
- 强流脉冲电子束 /
- 20钢 /
- 微观结构 /
- 非晶 /
- 位错圈
Abstract: In order to investigate superfast deformation behavior of metal, annealed 0.20%C carbon steel was irradiated with high-current pulsed electron beam (HCPEB). The microstructures of irradiated samples were investigated by using X-ray diffraction (XRD), optical microscopy and transmission electron microscopy (TEM). The experimental results showed that stress of about 1 GPa order was introduced in the irradiated surface layer, which led to severe plastic deformation on the irradiated surface. Both of the complicated configurations of tangle dislocations and dislocation cells were formed within the sublayer. Simultaneously, dislocation loops companied with the dislocations configurations were also produced. In the situation of multi-pulses, characterization by TEM also revealed that the sublayer consisting of some region with the glassy and nanocrystalline structure. It is suggested that the high-level stress and strain rate induced by HCPEB irradiation could cause the shifting of whole atomic planes synchronously. This is the more possible mechanism of the formation of the glassy and nanocrystalline structure.
- high-current pulsed electron beam /
- 0.20%C carbon steel /
- microstructure /
- amorphous structure /
- dislocation loop

HTML全文

参考文献(20)

Bourne N K, Gray G T, Millett J C. On the Shock Reponse of Cubic Metals [J]. J Appl Phys, 2009, 106(09): 1301.

Proskurovsky D I, Rotshtein V P, Ozur G E. Pulsed Electron-Beam Technology for Surface Modification of Metallic Materials [J]. J Vac Sci Technol A, 1998, 16(4): 2480-2488.

Proskurovsky D I, Rotshtein V P, Ozur G E. Physical Foundations for Surface Treatment of Materials with Low Energy, High Current Electron Beams [J]. Surf Coat Technol, 2000, 125: 49-56.

Guan Q F, Zhang Q Y, Dong C. Physical Model of Stress and Deformation Microstructures in AISI 304L Austenitic Stainless Steel Induced by High-Current Pulsed Electron Beam Surface Irradiation [J]. ISIJ Int, 2008, 48: 235-239.

Qiu D H, Cheng D Q, Guan Q F. Surface Stress Characteristics in Pure Nickel after High-Current Pulsed Electron Beam Irradiation [J]. Chinese Journal of High Pressure Physics, 2009, 23(5): 321-326. (in Chinese)

邱冬华, 程笃庆, 关庆丰, 等. 强流脉冲电子束处理后纯镍表面应力特征 [J]. 高压物理学报, 2009, 23(5): 321-326.

Cheng D Q, Guan Q F, Zhu J. Surface Nanocrystallization Mechanism in Pure Nickel Induced by High-Current Pulsed Electron Beam [J]. Acta Phys Sin, 2009, 58: 7300-7306. (in Chinese)

程笃庆, 关庆丰, 朱健. 强流脉冲电子束诱发纯镍表面纳米晶结构 [J]. 物理学报, 2009, 58: 7300-7306.

Guan Q F, An C X, Qin Y. Microstructure Induced by Stress Generated by High-Current Pulsed Electron Beam [J]. Acta Phy Sin, 2005, 54: 3927-3933. (in Chinese)

关庆丰, 安春香, 秦颖, 等. 强流脉冲电子束诱发产生的微观结构应力 [J]. 物理学报, 2005, 54: 3927-3933.

Guan Q F, Zhang Q Y, Dong C. Deformation Twining in Single-Crystal Aluminum Induced by High-Current Pulsed Electron Beam [J]. J Mater Sci, 2005, 40: 5049-5052.

Qin Y, Wang X G, Dong C. Temperature Field and Formation of Crater on the Surface Induced by High Current Pulsed Electron Beam Bombardment [J]. Acta Phys Sin, 2003, 52: 3043-3048.

Meyers M A, Xu Y B, Xue Q. Microstructural Evolution in Adiabatic Shear Localization in Stainless Steel [J]. Acta Mater, 2003, 51: 1307-1325.

Ivanov Y F, Gromov V E, Konovalov S V. Electron-Beam Modification of the Pearlite Steel [J]. Arab J Sci Eng, 2009, 34: 219-229.

Yasunaga K, Iseki M, Kiritani M. Dislocation Structures Introduced by High-Speed Deformation in bcc Metals [J]. Mater Sci Eng A, 2003, 350: 76-80.

Guan Q F, Cheng D Q, Qiu D H. The Vacancy Defect Clusters in Polycrystalline Pure Aluminum Induced by High-Current Pulsed Electron Beam [J]. Acta Phys Sin, 2009, 58: 4846-4832. (in Chinese)

关庆丰, 程笃庆, 邱冬华. 强流脉冲电子束诱发纯多晶铝的空位簇缺陷 [J]. 物理学报, 2009, 58: 4846-4832.

Pogrebnjak A D, Ivanov Y F, Lebed A G. Effect of Intense Pulse Ion Beam on Carbon Steel and Stainless Steel Properties [J]. Metallofizika Noveishie Tekhnolog Ⅱ, 2000, 10: 18-24.

Gleiter H. Nanostructured Materials: Basic Concepts and Microstructure [J]. Acta Mater, 2000, 48: 1-29.

Kiritani M. Dislocation-Free Plastic Deformation under High Stress [J]. Mater Sci Eng A, 2003, 350(1-2): 1-7.

施引文献

资源附件(0)

访问统计