Ti3AlC2, a candidate structural material for innovative nuclear energy system: The microstructure phase transformation and defect evolution induced by energetic heavy-ion irradiation

doi:10.1016/j.actamat.2020.03.008

	Ti3AlC2, a candidate structural material for innovative nuclear energy system: The microstructure phase transformation and defect evolution induced by energetic heavy-ion irradiation
	Deng, Tianyu 4,5,6; Sun, Jianrong 4,6; Tai, Pengfei 6; Wang, Yuyu 4,6; Zhang, Linqi 4,6; Chang, Hailong 6; Wang, Zhiguang 4,6; Niu, Lijuan 4,6; Sheng, Yanbin 6; Xue, Desheng 5
刊名	ACTA MATERIALIA
	2020-05-01
卷号	189 页码:188-203
关键词	MAX phase Ion irradiation Microstructure transformation Recovery of microstructure Mechanisms
ISSN号	1359-6454
DOI	10.1016/j.actamat.2020.03.008
通讯作者	Sun, Jianrong(sunjr@impcas.ac.cn) ; Wang, Zhiguang(zhgwang@impcas.ac.cn)
英文摘要	For the structure materials applied in the innovative nuclear energy system, the strongly environment radiation source is always a big concern which will severely degrade the materials performance especially at high temperature. To explore the mechanisms of the anti-irradiation properties in Ti3AlC2 , a typical MAX phase material showing excellent irradiation damage tolerance and resistance to amorphization, we conducted a series of 1 MeV C4(+) ions irradiation experiments on them at different temperatures (RT, 300 degrees C, 500 degrees C and 800 degrees C). Through Grazing Incidence X-ray Diffraction (GIXRD), Raman spectra (Raman), slow positron annihilation Doppler Broadening Spectroscopy (DBS) and high resolution Transmission Electron Microscopy (HRTEM), the anti-irradiation properties were systematically investigated. For the first time, an entire microstructure phase transformation process of Ti3AlC2 from alpha to beta to gamma and to perfect fee structure phase induced by irradiation at RT and it is inverse (recovery) process of phase transformation under high temperature (>= 300 degrees C) irradiation conditions are found and confirmed. And lots of simple vacancies are induced by irradiation and the density of them gets saturated above 5 x 10(15) ions/cm(2) fluences. These processes of phase transformation and recovery and vacancy saturation phenomenon are the primary reasons for why Ti3AlC2 has excellent irradiation damage tolerance and resistance to amorphization. In addition, the micro strain and lattice parameters are also affected by microstructure transformation and have been discussed. In a word, Ti3AlC2 materials show good anti-irradiation properties especially at high temperature, and now it is a primary candidate as the coating of the cladding material and the spallation target beam windows material in Chinese ADS project. And studies on this kind of materials provide a promising new concept and way for designing the structural materials for innovative nuclear energy system. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China (NSFC)[11275005] ; National Natural Science Foundation of China (NSFC)[91426304] ; National Natural Science Foundation of China (NSFC)[11427904] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2013267] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2016365]
WOS关键词	MAX PHASES ; MATERIALS CHALLENGES ; NEUTRON-IRRADIATION ; RAMAN-SCATTERING ; TI2ALC ; TI3SIC2 ; PERFORMANCE ; RESISTANCE ; TRANSITIONS ; TOLERANCE
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000527829900017
资助机构	National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/140498]
专题	中国科学院近代物理研究所
通讯作者	Sun, Jianrong; Wang, Zhiguang
作者单位	1.Kyoto Univ, Inst Adv Energy, Uji, Kyoto 6110011, Japan 2.Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou 350002, Peoples R China 3.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China 4.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 5.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 6.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Deng, Tianyu,Sun, Jianrong,Tai, Pengfei,et al. Ti3AlC2, a candidate structural material for innovative nuclear energy system: The microstructure phase transformation and defect evolution induced by energetic heavy-ion irradiation[J]. ACTA MATERIALIA,2020,189:188-203.
APA	Deng, Tianyu.,Sun, Jianrong.,Tai, Pengfei.,Wang, Yuyu.,Zhang, Linqi.,...&Li, Jinyu.(2020).Ti3AlC2, a candidate structural material for innovative nuclear energy system: The microstructure phase transformation and defect evolution induced by energetic heavy-ion irradiation.ACTA MATERIALIA,189,188-203.
MLA	Deng, Tianyu,et al."Ti3AlC2, a candidate structural material for innovative nuclear energy system: The microstructure phase transformation and defect evolution induced by energetic heavy-ion irradiation".ACTA MATERIALIA 189(2020):188-203.