Study of Nanostructure of Ferritic-Martensitic Steel ChS-139 in Initial State and after Fe Ion Irradiation

2018 ◽  
Vol 9 (2) ◽  
pp. 231-238 ◽  
Author(s):  
S. V. Rogozhkin ◽  
N. A. Iskandarov ◽  
A. A. Lukyanchuk ◽  
A. S. Shutov ◽  
O. A. Raznitsyn ◽  
...  
Keyword(s):  
Martensitic Steel ◽  
Ion Irradiation ◽  
Initial State

Microstructural evolution of P92 ferritic/martensitic steel under Ar+ ion irradiation at elevated temperature

2012 ◽  
Vol 68 ◽  
pp. 63-70 ◽  
Author(s):  
Shuoxue Jin ◽  
Liping Guo ◽  
Tiecheng Li ◽  
Jihong Chen ◽  
Zheng Yang ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Microstructural Evolution ◽  
Martensitic Steel ◽  
Ion Irradiation

Microstructural evolution of P92 ferritic/martensitic steel under argon ion irradiation

2011 ◽  
Vol 62 (1) ◽  
pp. 136-142 ◽  
Author(s):  
S.X. Jin ◽  
L.P. Guo ◽  
Z. Yang ◽  
D.J. Fu ◽  
C.S. Liu ◽  
...  
Keyword(s):  
Microstructural Evolution ◽  
Martensitic Steel ◽  
Ion Irradiation ◽  
Argon Ion

Evaluation of Irradiation Hardening of Fe-Ion Irradiated F82H by Nano-Indentation Techniques

2010 ◽  
Vol 654-656 ◽  
pp. 2915-2918 ◽  
Author(s):  
Yoshiyuki Takayama ◽  
Ryuta Kasada ◽  
Kiyohiro Yabuuchi ◽  
Akihiko Kimura ◽  
Dai Hamaguchi ◽  
...  
Keyword(s):  
Experimental Test ◽  
Fusion Reactor ◽  
Martensitic Steel ◽  
Ion Irradiation ◽  
Test Method ◽  
Irradiation Hardening ◽  
Nano Indentation ◽  
Ni Addition ◽  
Fusion Reactor Blanket ◽  
Hardness Depth

The effects of small amount (1 or 2 wt.%) of Ni additionson the irradiation hardening of the reduced-activation ferritic/martensitic steel, F82H, used as fusion reactor blanket structural materials were investigated by means of Fe-ion irradiation experimental test method and nano-indentation technique. The ion-irradiation hardening of Ni-added F82H is larger than that of the steel without Ni addition. The methodology to derive the irradiation hardening of ion-irradiated F82H steel was proposed from the results of hardness depth profile.

scholarly journals EFFECT OF SEVERE PLASTIC DEFORMATION ON RADIATION HARDENING OF T91 FERRITIC-MARTENSITIC STEEL

2021 ◽  
pp. 35-42
Author(s):  
V.N. Voyevodin ◽  
G.D. Tolstolutskaya ◽  
S.A. Karpov ◽  
A.N. Velikodnyi ◽  
M.A. Tikhonovsky ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Martensitic Steel ◽  
Ion Irradiation ◽  
Dose Range ◽  
Fold Increase ◽  
Radiation Hardening ◽  
Dislocation Loops ◽  
Transmission Electron ◽  
Means Of Transmission

Effect of thermomechanical treatment on radiation hardening behavior in T91 ferritic-martensitic steel was evaluated. An applying of severe plastic deformation (SPD) by the “upsetting-extrusion” method and subsequent heat treatment led to a considerable grain refinement, crushing of martensite lamellas, reduction of MX carbides size and their more uniform distribution. Nanoindentation measurements of SPD-modified steel revealed a 1.4-fold increase in the hardness relative to the initial steel. Irradiation response of modified steel was examined after 1.4 MeV Ar+ ion irradiations in the dose range of 10…45 displacements per atom (dpa) at room temperature and 460 °C. Microstructure characterization was performed by means of transmission electron microscopy (TEM). It was found that dislocation loops and nano-sized argon bubbles dominated the damage microstructure after ion irradiation. The effects of SPD-induced transformations as well as nano-bubbles formation are discussed regarding to the hardening phenomenon observed in irradiated steel.

scholarly journals Extra-Irradiation Hardening of Reduced Activation Ferritic/Martensitic Steel by Multi-Ion Irradiation

2007 ◽  
Vol 71 (12) ◽  
pp. 1107-1111 ◽  
Author(s):  
Masami Ando ◽  
Eiichi Wakai ◽  
Nariaki Ookubo ◽  
Hiroyuki Ogiwara ◽  
Tomotsugu Sawai ◽  
...  
Keyword(s):  
Martensitic Steel ◽  
Ion Irradiation ◽  
Irradiation Hardening

scholarly journals Hardening Of Ferritic/Martensitic Steel Induced By Self-ion Irradiation

2014 ◽  
Vol 488 (13) ◽  
pp. 132026
Author(s):  
H P Zhu ◽  
Z G Wang ◽  
M H Cui ◽  
J Wang
Keyword(s):  
Martensitic Steel ◽  
Ion Irradiation

Ion-irradiation-induced microstructural modifications in ferritic/martensitic steel T91

2017 ◽  
Vol 490 ◽  
pp. 305-316 ◽  
Author(s):  
Xiang Liu ◽  
Yinbin Miao ◽  
Meimei Li ◽  
Marquis A. Kirk ◽  
Stuart A. Maloy ◽  
...  
Keyword(s):  
Martensitic Steel ◽  
Ion Irradiation

Role of thermal history on atomic structure and ductility of ion-irradiated metallic glasses

2021 ◽  
Author(s):  
Tzu-Chia Chen ◽  
Indah Raya ◽  
Shafik S. Shafik ◽  
Abdullah Hasan Jabbar ◽  
Dmitry Tumanov ◽  
...  
Keyword(s):  
Metallic Glasses ◽  
Atomic Structure ◽  
Ion Irradiation ◽  
Structural Characteristics ◽  
Glassy Alloy ◽  
Initial State ◽  
Thermal Histories ◽  
Irradiation Process ◽  
Initial Results

Abstract Maximizing the structural rejuvenation and ductility is one of the most heated debates in the field of metallic glasses (MGs). In this work, molecular dynamics (MD) simulation was implemented to model the ion irradiation effects on the Cu60Zr40 MG with different thermal histories and varied structural heterogeneities. The initial results indicated that the performance of an annealing-quench treatment on the MG induces the atomic configurations with different heterogeneities and potential energy values. The subsequent ion irradiation process also demonstrated that an optimized atomic structure was occurred for achieving maximum rejuvenation and ductility in the CuZr glassy alloy. It was unveiled that the intermediate initial heterogeneity provides an efficient pathway for maximizing the atomic rearrangements under the ion irradiation. It was also suggested that the medium population of Cu-centered clusters in the initial state facilitated the atomic rearrangements during the ion irradiation process. The structural characteristics and atomic reconfigurations for attaining the optimum ductility is discussed in details.

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