Yuan Cheng

ORCID: 0000-0002-7110-3192
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About
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Research Areas
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Non-Destructive Testing Techniques
  • Corrosion Behavior and Inhibition
  • Fatigue and fracture mechanics
  • Microstructure and Mechanical Properties of Steels
  • Welding Techniques and Residual Stresses
  • Semiconductor Lasers and Optical Devices
  • Advanced Optical Imaging Technologies
  • AI-based Problem Solving and Planning
  • Additive Manufacturing Materials and Processes
  • Rough Sets and Fuzzy Logic
  • High Temperature Alloys and Creep
  • Semantic Web and Ontologies
  • High Entropy Alloys Studies
  • High-Temperature Coating Behaviors
  • GaN-based semiconductor devices and materials
  • Concrete Corrosion and Durability

University of Science and Technology Beijing
2010-2025

National Chung Cheng University
2021

Baogang Group (China)
1999

ABSTRACT The low cycle fatigue (LCF) behavior and stress–strain responses of ultra‐pure 26Cr2Ni4MoV steel were studied under symmetric strain/stress‐controlled cycling ( R = −1) at room temperature. characteristic features cyclic stages—saturation, stable descent, rapid descent—were identified in both loading modes. Additionally, tension–compression asymmetry (TCA) significantly affected resistance, with ratcheting strain stress‐controlled reducing the life. In contrast, strain‐controlled...

10.1111/ffe.14591 article EN Fatigue & Fracture of Engineering Materials & Structures 2025-02-10

Mini-light-emitting diodes (mini-LEDs) were combined with multiple three-dimensional (3D) diffuse reflection cavity arrays (DRCAs) to produce thin, large-area, high-brightness, flat light source modules. The curvature of the 3D free-form DRCA was optimized control its path; this increased distance between sources and reduced number used. Experiments a 12.3-inch prototype indicated that 216 mini-LEDs required for 6 mm optical mixing achieve large-area surface high brightness, uniformity,...

10.3390/nano11092395 article EN cc-by Nanomaterials 2021-09-14

In this research, the stress corrosion cracking (SCC) behavior of X80 pipeline steel in a Xinzhou soil environment at different temperatures and applied potentials was studied with slow strain rate test (SSRT), potentiodynamic polarization curve measurements, scanning electron microscopy (SEM). When higher anodic potential applied, dissolution occurred crack tip on wall. The mechanism solution is (AD). At positive cathodic potentials, under an state SCC affected by combined effects (AD)...

10.3390/ma15072560 article EN Materials 2022-03-31

Threshold stress in constant load tests and critical strain for sulfide corrosion cracking (SCC) of seven tubular steels were measured. Percent reduction area loss caused by SCC four also Results showed there was no interrelationship among the three parameters SCC. The threshold hydrogen-induced delayed failure during charging sulfuric acid (H2SO4) solution test decreased linearly with logarithm concentration diffusible hydrogen steels. stresses obtained dynamic current corresponding to...

10.5006/1.3284021 article EN CORROSION 1999-07-01

Corrosion behaviors of X80 pipeline steel were investigated in different simulated alkaline soil solution using electrochemical test, EDS coupled to SEM and weight loss method. The results showed uniform corrosion was happened on Shanshan Hami solution, local the main failure mode for Yumen solution. ranking rate from biggest Hami, Yumen. With increasing immersion time, a dense Ca 2+ deposited layer formed surface steel, which could inhibiting Cl - effects SO 4 2- competition absorbed effect...

10.4028/www.scientific.net/amr.189-193.4261 article EN Advanced materials research 2011-02-01

Stress corrosion cracking susceptibility of X80 pipeline steel was investigated in a simulated soil solution using slow strain rate tensile(SSRT) tests.The based on the chemical compositions alkaline Gansu northwest China.The tests were conducted at different rates.The fracture surfaces and secondary cracks observed scanning electron microscopy(SEM).The results showed that rates had an important role SCC solutions.Corrosion mechanical factors have influences during processes rates,which...

10.3969/j.issn.1001-4381.2013.03.015 article EN Cailiao gongcheng 2013-03-01

The stress corrosion cracking susceptibility of X80 pipeline steel was investigated in a simulated soil solution using slow strain rate tensile (SSRT) tests. different potentials were applied the fracture surfaces observed scanning electron microscopy (SEM). susceptible to SCC solution. had no apparent change with anodic applied. mechanism dissolution. However, increased decrease cathodic obviously. induced by Hydrogen diffusing into metal.

10.4028/www.scientific.net/amr.146-147.920 article EN Advanced materials research 2010-10-01

The stress corrosion cracking (SCC) susceptibility of X80 pipeline steel, which was used in the Second West-East Gas Pipeline, investigated simulated soil solution Xinzhou Hubei province China. SCC studied using slow strain rate tensile (SSRT) tests different potentials were applied. fracture surfaces observed SEM. steel susceptible to solution. not serious with anodic mechanism dissolution. But affected obviously cathodic because influence hydrogen.

10.4028/www.scientific.net/amr.197-198.1549 article EN Advanced materials research 2011-02-21
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