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Haipeng Lin, Xuefeng Song, Fei Dai, Fengwei Zhang, Qiang Xie and Huhu Chen
Hardness is a critical mechanical property of grains. Accurate predictions of grain hardness play a crucial role in improving grain milling efficiency, reducing grain breakage during transportation, and selecting high-quality crops. In this study, we dev...
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Yi Wang, Jun Huang, Menglan Duan, Chengong Sun and Xiongfei Wang
Pipe-in-pipe (PIP) flowlines have been widely arranged in offshore oil and gas fields for transportation, to achieve a significant thermal insulation capacity and outstanding resistance to external loads. However, the lateral indentation mechanisms of th...
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Sabina Cherneva, Vladimir Petrunov, Vladimir Petkov, Vladimir Bogdanov and Silviya Simeonova
The mechanical properties, structure, and morphology of milled and 3D-printed Ti-6Al-4V alloys produced by selective laser melting were investigated in this study. The mechanical properties were investigated by means of nanoindentation, a tensile test, a...
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Hewei Liu, Kun Liu, Xiufei Wang, Zhenguo Gao and Jiaxia Wang
This paper presents an experimental, numerical, and analytical study of a novel specimen subjected to local in-plane load, to investigate its crushing deformation and resistance. The specimen was designed and fabricated to simplify the cruciform structur...
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Gonghou Yao, Zhanqiang Liu and Haifeng Ma
The presence of residual stress seriously affects the mechanical performance and reliability of engineering components. Here, the authors propose a novel method to determine corresponding residual stress through micro-hardness measurements of machined su...
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Szabolcs Szalai, Hanna Csótár, Dmytro Kurhan, Attila Németh, Mykola Sysyn and Szabolcs Fischer
We investigated lubricants and thin teflon foils that can be applied in the formability testing of the thin aluminum sheets used in the electronics and automotive industries. For the tests, thirteen different industrial lubricants (oils and greases) (i.e...
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Guojun Wang, Qianjin Yue, Dayong Zhang, Yanghua Fu, Xin Peng and Rui Dong
When sea ice acts on vertical structures, there are much higher pressures in localized areas known as high-pressure zones (HPZs) than in other areas. The damage failure mode of sea ice varies with the sea ice velocity and affects the distribution of HPZs...
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Madalina Simona Baltatu, Cristiana Chiriac-Moruzzi, Petrica Vizureanu, László Tóth and János Novák
Titanium-based alloys are constantly improved to obtain properties suitable for their use. Improving titanium alloys is very important for performing alloys without side effects. In this paper effects of structure, microhardness, and indentation test of ...
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Zifeng Li, Guotan Liu, Guanqi Liu, Xiaoshuo Zhu and Yudong Fu
Nb-Si-C thin films were deposited onto Si(001) substrates by radio frequency (RF) magnetron sputtering using individual Nb, Si, and C targets. The effects of varying the sputtering power on the phase composition of the new thin films were studied. The st...
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Seunghun Choi, Jongho Won, Jung-Jun Lee, Hee-Keun Lee, Seong-Min Kim, Changhyun Cho and Dongil Kwon
Invar alloy sheet was welded by resistance seam welding (RSW) with a constant electrode force and three different welding currents. Tensile properties were evaluated using instrumented indentation testing (IIT) with a spherical indenter and microstructur...
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