-
High-current pulsed electron beam (HCPEB) technique was applied to induce the surface irradiation of pure molybdenum. Microstructures and damaging effect of the irradiated surface were investigated in detail by X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). After 1 pulse of HCPEB irradiation, a high level of residual stress is amassed in the irradiated surface layer, while after several pulses of irradiation, a large number of adiabatic shear bands are formed on the unmelted regions of the surface, and local cracking occurs in these regions. Microstructure observations show that scattered dislocations and large amounts of vacancy clusters are formed on the irradiated surface. The adiabatic shear bands are composed of fine recrystallized grains with an average size about 1 μm. The partial softening of the irradiated surface induced by adiabatic shear bands, and the segregation of interstitial atoms in grain boundaries are primarily responsible for the surface cracking of the material. Further, nanocrystallines (20 nm) are also formed in some melted regions of the surface.
-
Keywords:
- HCPEB /
- pure molybdenum /
- adiabatic shear band /
- vacancy defect clusters
[1] Proskurovsky D I, Rotshtein V P, Ozur G E, Markov A B, Nazarov D S 1998 J. Vac. Sci. Technol. A 16 2480
[2] Ma X X, Guo G W, Tang G Z, Sun M R, Wang L Q 2013 Chin. Phys. B 22 056202
[3] Guan Q F, Pan L, Zou H, Wu A M, Hao S Z, Zhang Q Y, Dong C, Zou G T 2004 Mater. Sci. 39 6349
[4] Wang X T, Guan Q F, Qiu D H, Cheng X W, Li Y, Peng D J, Gu Q Q 2010 Acta Phys. Sin. 59 7252 (in Chinese) [王雪涛, 关庆丰, 邱冬华, 程笃庆, 李艳, 彭冬晋, 顾倩倩 2010 59 7252]
[5] Zou H, Jing H Y, Wang Z P, Guan Q F 2010 Acta Phys. Sin. 59 6384 (in Chinese) [邹慧, 荆洪阳, 王志平, 关庆丰 2010 59 6384]
[6] Li Y, Cai J, Lv P, Zou Y, Wan M Z, Peng D J, Gu Q Q, Guan Q F 2012 Acta Phys. Sin. 61 056105 (in Chinese) [李艳, 蔡杰, 吕鹏, 邹阳, 万明珍, 彭冬晋, 顾倩倩, 关庆丰 2012 61 056105]
[7] Cai J, Ji L, Yang S Z, Zhang Z Q, Liu S C, Li Y, Wang X T, Guan Q F 2013 Acta Phys. Sin. 62 156108 (in Chinese) [蔡杰, 季乐, 杨盛志, 张在强, 刘世超, 李艳 王晓彤, 关庆丰 2013 62 156108]
[8] Qin Y, Dong C, Wang X G, Hao S Z, Wu A M, Zou J X, Liu Y 2003 J. Vac. Sci. Technol. 21 1934
[9] Meyers M A, Xu Y B, Xue Q 2003 Acta. Mater. 51 1307
[10] Qiu D H, Cheng D Q, Guan Q F, Zou G T 2009 Chin. J. High Pressure Phys. 23 321 (in Chinese) [邱冬华, 程笃庆, 关庆丰, 邹广田 2009 高压 23 321]
[11] Zou J X, Grosdidier T, Zhang K M, Gao B, Hao S Z, Dong C 2007 J. Alloys Compd. 434 707
[12] Tang G Z, Xu F J, Fan G H, Ma X X, Wang L Q 2012 Nucl. Instrum. Meth. B 288 1
[13] Yasunaga K, Iseki M, Kiritani M 2003 Mater. Sci. Eng A 350 76
[14] Kiritani M 2003 Mater. Sci. Eng A 350 63
[15] Zou J X, Qin Y, Dong C, Wang X G, Wu A M, Hao S Z 2004 J. Vac. Sci. Technol. A 22 545
[16] Meyers M A, Xu Y B, Xue Q, Perez-Prado M T, McNelley T R 2003 Acta. Materialia. 51 1037
[17] Kiritani M, Yoshiie T, Kojima S 1994 J. Nucl. Mater. 212-215 192
[18] Cheng X W, Guan Q F, Fan X H, Chen B 2010 Chin. Phys. B 19 016103
[19] Feng D 2000 Metal Physics (Vol. 1) (Beijing: Science Press) p223 (in Chinese) [冯端 2000 金属物理学 (第一卷) (北京: 科学出版社) 第223页]
[20] Wang T, Chang C, Ming P W 2007 Mater. Rev. 2007 21 80 (in Chinese) [谭望, 陈畅, 汪明朴 2007 材料导报 21 80]
[21] Guduru P R, Rosakis A J 2001 Mech. Mater. 33 371
-
[1] Proskurovsky D I, Rotshtein V P, Ozur G E, Markov A B, Nazarov D S 1998 J. Vac. Sci. Technol. A 16 2480
[2] Ma X X, Guo G W, Tang G Z, Sun M R, Wang L Q 2013 Chin. Phys. B 22 056202
[3] Guan Q F, Pan L, Zou H, Wu A M, Hao S Z, Zhang Q Y, Dong C, Zou G T 2004 Mater. Sci. 39 6349
[4] Wang X T, Guan Q F, Qiu D H, Cheng X W, Li Y, Peng D J, Gu Q Q 2010 Acta Phys. Sin. 59 7252 (in Chinese) [王雪涛, 关庆丰, 邱冬华, 程笃庆, 李艳, 彭冬晋, 顾倩倩 2010 59 7252]
[5] Zou H, Jing H Y, Wang Z P, Guan Q F 2010 Acta Phys. Sin. 59 6384 (in Chinese) [邹慧, 荆洪阳, 王志平, 关庆丰 2010 59 6384]
[6] Li Y, Cai J, Lv P, Zou Y, Wan M Z, Peng D J, Gu Q Q, Guan Q F 2012 Acta Phys. Sin. 61 056105 (in Chinese) [李艳, 蔡杰, 吕鹏, 邹阳, 万明珍, 彭冬晋, 顾倩倩, 关庆丰 2012 61 056105]
[7] Cai J, Ji L, Yang S Z, Zhang Z Q, Liu S C, Li Y, Wang X T, Guan Q F 2013 Acta Phys. Sin. 62 156108 (in Chinese) [蔡杰, 季乐, 杨盛志, 张在强, 刘世超, 李艳 王晓彤, 关庆丰 2013 62 156108]
[8] Qin Y, Dong C, Wang X G, Hao S Z, Wu A M, Zou J X, Liu Y 2003 J. Vac. Sci. Technol. 21 1934
[9] Meyers M A, Xu Y B, Xue Q 2003 Acta. Mater. 51 1307
[10] Qiu D H, Cheng D Q, Guan Q F, Zou G T 2009 Chin. J. High Pressure Phys. 23 321 (in Chinese) [邱冬华, 程笃庆, 关庆丰, 邹广田 2009 高压 23 321]
[11] Zou J X, Grosdidier T, Zhang K M, Gao B, Hao S Z, Dong C 2007 J. Alloys Compd. 434 707
[12] Tang G Z, Xu F J, Fan G H, Ma X X, Wang L Q 2012 Nucl. Instrum. Meth. B 288 1
[13] Yasunaga K, Iseki M, Kiritani M 2003 Mater. Sci. Eng A 350 76
[14] Kiritani M 2003 Mater. Sci. Eng A 350 63
[15] Zou J X, Qin Y, Dong C, Wang X G, Wu A M, Hao S Z 2004 J. Vac. Sci. Technol. A 22 545
[16] Meyers M A, Xu Y B, Xue Q, Perez-Prado M T, McNelley T R 2003 Acta. Materialia. 51 1037
[17] Kiritani M, Yoshiie T, Kojima S 1994 J. Nucl. Mater. 212-215 192
[18] Cheng X W, Guan Q F, Fan X H, Chen B 2010 Chin. Phys. B 19 016103
[19] Feng D 2000 Metal Physics (Vol. 1) (Beijing: Science Press) p223 (in Chinese) [冯端 2000 金属物理学 (第一卷) (北京: 科学出版社) 第223页]
[20] Wang T, Chang C, Ming P W 2007 Mater. Rev. 2007 21 80 (in Chinese) [谭望, 陈畅, 汪明朴 2007 材料导报 21 80]
[21] Guduru P R, Rosakis A J 2001 Mech. Mater. 33 371
Catalog
Metrics
- Abstract views: 6609
- PDF Downloads: 654
- Cited By: 0
下载:
