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Yinghao Sun and Frank Cheng
Hydrogen embrittlement (HE) of steel pipelines in high-pressure gaseous environments is a potential threat to the pipeline integrity. The occurrence of gaseous HE is subjected to associative adsorption of hydrogen molecules (H2) at specific ?active sites...
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Monnamme Tlotleng, Sisa Pityana and Sibusisiwe Motha
The effects of micro-alloying gamma titanium aluminide (?-TiAl) with niobium (Nb) using a laser melt pool as a melting pot are reported. The Optomec LENS machine was used to carry out the laser in situ alloying experiments where Nb, ranging from 6 to 10 ...
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Bo Li, Kaisheng Ming, Lichen Bai, Jing Wang and Shijian Zheng
A strategy to improve the mechanical and electrochemical properties of Cr15Fe20Co35Ni20Mo10 (Mo10) high-entropy alloys (HEA) by regulating the thermal-mechanical process was investigated. Due to the mutual competition between recrystallization and µ-phas...
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Roberto Montanari, Alex Lanzutti, Maria Richetta, Javokhir Tursunbaev, Emanuele Vaglio, Alessandra Varone and Claudio Verona
Austenitic stainless steels produced by laser powder bed fusion (L-PBF) are quite interesting materials owing to their specific microstructure consisting of dendrite walls built of dislocations pinned by many nano-oxides that involves significant strengt...
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Hongyu Zheng, Jingwen Sun, Na Guo and Mingjie Wang
A molecular dynamics simulation was applied to investigate the diffusion behavior and mechanical properties of a Fe/Cu solid?liquid interface with different orientations, temperatures, and strain rates. The results show that the displacement distance of ...
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Huihui Wang, Weihua Zeng and Ruoxin Cao
The jobs?housing balance concerns the spatial relationship between the number of jobs and housing units within a given geographical area. Due to the separation of jobs and housing, spatial dislocations have occurred in large cities, which have resulted i...
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Linning Wang, Yuan Liu and Jingjing Liang
Interrupted creep tests were performed on a polycrystalline Ni-base superalloy, and rejuvenation heat treatment (RHT) was carried out to restore the creep resistance. During creep deformation, the microstructural evolution can be characterized as coarsen...
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Jun Zhang, Hua Liu, Jianwei Cao, Weidong Zhu, Bo Jin and Wei Li
For the single crystal furnace used in the photovoltaic industry, growth problems occur frequently due to dislocations during the shouldering and cylindrical growth steps of the Czochralski (CZ) crystal growth. Detecting the dislocation phenomenon in the...
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Yalina Ma, Qian Sheng, Guimin Zhang and Zhen Cui
For water transmission tunnels constructed in high-risk seismic regions of western China, active faults pose threats of serious ruptures to the tunnels. To overcome this issue, a 3D discrete-continuum coupling approach is introduced into the study. By th...
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Mario Camara
Pág. 75 - 96
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