Microstructure and Nano-Hardness of 10 MeV Cl-Ion Irradiated T91 Steel  

作　　者：胡菁 王先平 高云霞 庄重 张涛 方前锋 刘长松 

机构地区：[1]Key Laboratory of Materials Physics,Institute of Solid State Physics,Chinese Academy of Sciences [2]School of Physics and Electronic Information,Huaibei Normal University

出　　处：《Plasma Science and Technology》2015年第12期1088-1091,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.11374299,11375230,11274309)

摘　　要：Hardening and elemental segregation of T91 martenstic steel irradiated by 10 MeV Cl ions to doses from 0.06 dpa to 0.83 dpa were investigated with the nanoindentation technique and transmission electron microscopy（TEM）.The results demonstrated that the irradiation hardening was closely related with irradiation dose.By increasing the dose,the hardness increased rapidly at first from the initial value of 3.15 GPa before irradiation,and then tended to saturate at a value of 3.58 GPa at the highest dose of 0.83 dpa.Combined with TEM observation,the mechanism of hardening was preliminary attributed to the formation of M（Fe,Cr）23C6 carbides induced by the high energy Cl-ion irradiation.Hardening and elemental segregation of T91 martenstic steel irradiated by 10 MeV Cl ions to doses from 0.06 dpa to 0.83 dpa were investigated with the nanoindentation technique and transmission electron microscopy（TEM）.The results demonstrated that the irradiation hardening was closely related with irradiation dose.By increasing the dose,the hardness increased rapidly at first from the initial value of 3.15 GPa before irradiation,and then tended to saturate at a value of 3.58 GPa at the highest dose of 0.83 dpa.Combined with TEM observation,the mechanism of hardening was preliminary attributed to the formation of M（Fe,Cr）23C6 carbides induced by the high energy Cl-ion irradiation.

关 键 词：irradiation irradiated attributed indentation hardness hardening SAED diamond preliminary nanometer 

分 类 号：TG142.1[一般工业技术—材料科学与工程]