Proton irradiation for radiation-induced changes in microstructures and mechanical properties of austenitic stainless steel

Jin, Hyung Gon; Hwang, Seong Sik; Choi, Min; Lee, Gyeong-Geun; Kwon, Junhyun

doi:10.1016/j.jnucmat.2018.11.017

Cited by 18 publications

(8 citation statements)

References 28 publications

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“…Therefore, the density of dislocation rings or dislocation clusters caused by the irradiation will increase accordingly. This is consistent with the results reported in the literature [10,[34][35][36][37].…”

Section: Microstructure Evolution Mechanism Of the Tempered 5140 Allosupporting

confidence: 93%

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Microstructure Evolution and Mechanical Properties of Tempered 5140 Alloy Steel after Proton Irradiation at Different Temperatures

Dai

Niu

2020

Materials

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This article introduces the effect of tempered 5140 alloy steel commonly used in engineering on its structure and mechanical properties under the action of proton irradiation. In the present study, the irradiation energy of 160 keV is applied to experimentally investigate the proton irradiation with different cumulative fluences on the tempered 5140 alloy steel. The effect of the cumulative fluence of the proton irradiation on the microstructure evolution of tempered 5140 alloy steel is studied through transmission electron microscopy. Moreover, the morphology of the tensile fracture is analyzed by scanning electron microscope. The effect of the cumulative fluence of the proton irradiation on the nanomechanical properties of tempered 5140 alloy steel is investigated with a nanomechanical tester. It is found that the surface hardening effect formed by the proton irradiation damage causes the dislocation density in the structure near the tempered 5140 alloy steel surface layer and such effect increases as the proton irradiation cumulative fluence increases. The results obtained show that the yield and tensile strength of the tempered 5140 alloy steel increase slightly as the cumulative fluence of the proton irradiation increases. However, the corresponding elongation decreases. For a stable pressure load of the nanoindentation, the hardness of the nanoindentation of the tempered 5140 alloy steel increases as the proton irradiation fluence increases. However, the corresponding indentation depth decreases. Based on the obtained results, it is concluded that proton irradiation has no significant effect on the macro- and nanomechanical properties of the tempered 5140 alloy steel. This may be attributed to the low energy of the proton irradiation, and the resulting radiation damage only acts on the thin layer of the tempered 5140 alloy steel surface.

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Section: Microstructure Evolution Mechanism Of the Tempered 5140 Allosupporting

confidence: 93%

“…A lot of research work has been performed to investigate the effect of proton irradiation on the structure and properties of different alloy steels [8][9][10][11][12]. However, the majority of these studies focused on austenite or ferritic alloy steels, which are commonly used in nuclear reactor pressure vessels that mainly use the proton.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Mechanical Properties of Tempered 5140 Alloy Steel after Proton Irradiation at Different Temperatures

Dai

Niu

2020

Materials

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“…Correspondingly, there are more obvious lattice distortions or a higher dislocation density. As a result, a radiation hardening effect acts upon the material’s surface, which increases the surface hardness of the material [18]. In addition, the presence of dislocations in samples that were not subject to proton irradiation was also observed in Figure 3a, Figure 4a and Figure 5a, thereby indicating that combined effect of the heat treatment process before proton irradiation caused a change in the microstructure of the irradiated surface layer [29].…”

Section: Resultsmentioning

confidence: 99%

“…However, there have been only a few reports to date, on the effects of proton irradiation on the tribological and wear properties of steel. While there are several reports on proton-irradiated stainless steel [18,19,20,21,22,23], they mostly focus on the effects of proton irradiation on the microstructures and properties of austenitic or ferritic steels that are used in the nuclear industry. Results on the tribological and wear properties of AISI 420 steel after tempering and proton irradiation are rarely reported.…”

Section: Introductionmentioning

confidence: 99%

“…However, this work did not address the effects of proton irradiation on the tribological and wear properties. Usually, proton irradiation can cause point defects in the crystal near the material’s surface; lattice distortion caused by the crystal defects result in the surface-hardening effect [18,25]. Protons are charged particles, and their penetration ability into materials is dependent on their energy.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure Evolution and Nanotribological Properties of Different Heat-Treated AISI 420 Stainless Steels after Proton Irradiation

Dai

Niu

2019

Materials

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In this paper, low-energy proton irradiation experiments with different cumulative fluences were performed on samples of AISI 420 stainless steel that were either annealed or tempered at 600 or 700 °C. The effects of the cumulative proton irradiation fluence on the evolution of the microstructure of AISI 420 were studied by transmission electron microscopy (TEM). Scratch tests were performed using a Tribo Indenter nanomechanical tester, in order to investigate the effects of the cumulative fluence on the tribological properties of the AISI 420 stainless steel. The results indicate that the dislocation density of the microstructure near the surface of the AISI 420 stainless steel increases with higher cumulative proton irradiation fluences. Under the same load, the nanoscale friction coefficient and wear rate both decreased with increasing cumulative proton irradiation fluence. This indicates that the surface hardening effect induced by proton irradiation can diminish the nanoscale friction coefficient and wear rate.

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Effect of Weld Geometry on Irradiation-Induced Segregation Resistance of 316L Stainless Steel Weld at 400 °C

Qiao,

Lei,

Yao

et al. 2023

Trans Indian Inst Met

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Proton irradiation for radiation-induced changes in microstructures and mechanical properties of austenitic stainless steel

Cited by 18 publications

References 28 publications

Microstructure Evolution and Mechanical Properties of Tempered 5140 Alloy Steel after Proton Irradiation at Different Temperatures

Microstructure Evolution and Mechanical Properties of Tempered 5140 Alloy Steel after Proton Irradiation at Different Temperatures

Microstructure Evolution and Nanotribological Properties of Different Heat-Treated AISI 420 Stainless Steels after Proton Irradiation

Effect of Weld Geometry on Irradiation-Induced Segregation Resistance of 316L Stainless Steel Weld at 400 °C

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