Evaluation of helium effect on irradiation hardening in F82H, ODS, SIMP and T91 steels by nano-indentation method

Li, Bingsheng; Wei, Kongfang; Shen, Tielong; Chen, Yao; Zhang, Hongpeng; Sheng, Yuchen; Lu, Xirui; Xiong, Anli; Wang, Han

doi:10.1016/j.fusengdes.2019.04.049

Cited by 42 publications

(25 citation statements)

References 26 publications

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“…e impacts concerning NPs such as TiO 2 [9,10], ZnO [11], clay [12], multiwalled carbon nanotube (MWCNT) [13,14], SiO 2 [15], and Al 2 O 3 [16] have been investigated in a number of research studies. Previous studies revealed that various factors affecting the mechanical properties of materials [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…e fatigue crack propagation and statistical distribution of microcracks are well studied by Qian et al, [17,18]. e development of He implantation-induced imperfections and dissimilar irradiation temperatures are also reported as factors that affect the materials properties [19,20]. By looking at the literature both intensively and extensively, it can be seen that numerous industrial applications (particularly, electronic applications) have deeply utilized the epoxy resins due to their superior fatigue life and above-average specific strength/ stiffness.…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study on Structural, Morphological, and Tensile Properties of Binary and Ternary Epoxy Resin‐Based Polymer Nanocomposites

Mustafa

Rostam

Aziz

2020

Advances in Materials Science and Engineering

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In the present work, epoxy resin-based nanocomposites (NCPs) were fabricated with improved mechanical properties. The epoxy resin (EPR) was mixed with differing amounts of calcium titanate (CaTiO3) nanoparticles (NPs) and glass fiber. The results showed that the ternary system contained glass fiber exhibits low mechanical performance compared to binary [EPR:CaTiO3] system. The effect of fiber glass and NPs on the epoxy resin mechanical behavior was determined by conducting a tensile test for various specimen sets. From the mechanical characterizations, it was seen that there is a monotonic relationship between the NPs concentration and Young’s modulus. Additionally, NCPs samples were brittle in nature and the strain rate significantly decreased upon the addition of CaTiO3 concentration; while the tensile strength was increased. From the X-ray diffraction evaluation, it can be concluded that the addition of NPs have a great impact on the epoxy structure. Besides, the morphology appearance was in good agreement with structural and mechanical analysis.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Structural, Morphological, and Tensile Properties of Binary and Ternary Epoxy Resin‐Based Polymer Nanocomposites

Mustafa

Rostam

Aziz

2020

Advances in Materials Science and Engineering

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“…Scholars have also conducted fruitful research on this issue. Related studies have involved mainly the fatigue and fracture performance of the structure materials in power plants [4][5][6][7][8][9][10][11], the seismic behavior of electric substation equipment and structures [12][13][14], and wind-induced vibration effects of transmission lines and towers [15][16][17]. In addition, there have been many other studies that are not listed here.…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis of the Tensile Mechanical Properties of a Hydraulic Strain Clamp‐Conductor System

Ye¹,

Pang²,

et al. 2020

Advances in Materials Science and Engineering

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Herein, a three-dimensional (3D) finite element model of a strain clamp-conductor system is established, with an NY-300/40 compression-type strain clamp taken as an example. The tensile load-carrying capacity of the strain clamp under standard crimping conditions is analyzed with LS-DYNA software, and the simulation results are compared with the experimental results to verify the accuracy of the model. On this basis, the tensile load-bearing capacity and failure mode of the strain clamp-conductor system are analyzed when the crimping length between the steel anchor and steel core is insufficient. Studies have shown that the grip strength of a strain clamp is provided mainly by the crimping between the steel anchor and the steel core. Under standard crimping conditions, the tensile load-bearing capacity of the strain clamp can meet the design requirements. Moreover, because the crimping length between the steel anchor and steel core is sufficient, the strain clamp fails due to aluminum strand breakage rather than the steel core being pulled out of the steel anchor. When the crimping length is insufficient, the grip strength of the strain clamp decreases with decreasing crimping length. Although the absolute value of the grip strength does not decrease significantly, the failure mode gradually changes from the breakage of the aluminum strands to the steel core being pulled out of the steel anchor. For the NY-300/40 compression-type strain clamp, the corresponding critical crimping length (i.e., when the change in failure modes occurs) between the steel core and the steel anchor is 50∼60 mm.

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“…An on-site test and numerical simulation were conducted by Choi et al 5 The study opined that the deformation of the base plate and large shear stresses on the anchor bolts causing bolt fracture. The microstructure, metallographic examination and hardness testing of material was analyzed [6][7][8][9] and the authors proposed the main cause of fracture is relevant to complex stresses and treatment process.…”

Section: Introductionmentioning

confidence: 99%

Frequency spectrum and fatigue analysis of T-bolt fracture in DT III fastener based on Refined Model

et al. 2020

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It is observed that T-bolt fracture of DT III fastener affects the safety of railway operations. The present study is aimed at finding solution to this critical issue of DT III T-bolt fracture. The paper is based on outcomes of field studies and analysis of relationship between bolt installation torque and stress. A refined DT III fastener model is established based on test data and nonlinear contact theory as per the actual size of each component. It is being observed that head-shank joint is a critical area during service. With respect to fatigue and stress, when the installation torque is less than 300 KN-mm, the bolt is prevented from yielding during installation. To a certain extent it also improves the fatigue life of bolt. From the frequency spectrum point of view, the vibration sensitive frequency band (1050–1100 Hz, 1230–1270 Hz) of bolt in service is very close to the main frequency of bolt vibration (1200 Hz). It may cause bolt fracture. In order to avoid resonance, the train operational speed should be strictly controlled between 115 km/h and 120 km/h.

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Evaluation of helium effect on irradiation hardening in F82H, ODS, SIMP and T91 steels by nano-indentation method

Cited by 42 publications

References 26 publications

A Comparative Study on Structural, Morphological, and Tensile Properties of Binary and Ternary Epoxy Resin‐Based Polymer Nanocomposites

A Comparative Study on Structural, Morphological, and Tensile Properties of Binary and Ternary Epoxy Resin‐Based Polymer Nanocomposites

Simulation Analysis of the Tensile Mechanical Properties of a Hydraulic Strain Clamp‐Conductor System

Frequency spectrum and fatigue analysis of T-bolt fracture in DT III fastener based on Refined Model

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