A TEM study of cavity structures in a Fe-Cr-mn alloy and A 316L stainless steel heavily irradiated with 92 MeV Ar ions

	A TEM study of cavity structures in a Fe-Cr-mn alloy and A 316L stainless steel heavily irradiated with 92 MeV Ar ions
	Sun, JG ; Quan, JM ; Wang, YS ; Zhang, CH; Chen, KQ ; Chen, CQ ; Zhong, ZY ; Saka, H ; Kim, TH ; Holm, EA
	2005
关键词	cavities gases ion irradiation electron microscopy austenitic steels
卷号	475-479
页码	1459-1462
英文摘要	Low-activation Fe-Cr-Mn alloy and 316L stainless steel were irradiated with 92 MeV Ar ions at about 500 degrees C, to fluences of 0.8 similar to 1.7 x 10(21) ions m(-2) After irradiation, cross-sectional specimens were investigated with transmission electron microscopy. Cavities with high number density were observed in the peak dose regions. The cavity number density reaches maximum at Ar concentration peak, while cavity mean size is consistent with displacement damage profile. It is indicated that Ar atoms can enhance cavity formation in a manner similar to helium. There are thresholds of dose and dose rate for the bi-modal size distribution of cavities. The significant growth of a small portion of cavities in the peak damage region at the highest ion-fluence is ascribed to the effect of interactive sink strength of cavities.
会议录	PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000227494701139
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57663]
专题	近代物理研究所_材料研究中心
通讯作者	Zhang, CH
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Gen Res Inst NonFerrous Met, Beijing 100088, Peoples R China
推荐引用方式 GB/T 7714	Sun, JG,Quan, JM,Wang, YS,et al. A TEM study of cavity structures in a Fe-Cr-mn alloy and A 316L stainless steel heavily irradiated with 92 MeV Ar ions[C]. 见:.