Guangming Cheng

Works (23)

Updated: January 30th, 2025 05:00

2024 article

Size-dependent strengthening in nanowires: The roles of adatom diffusion and surface curvature on surface dislocation nucleation

He, L., Cheng, G., Zhu, Y., & Park, H. S. (2024, December 31). Extreme Mechanics Letters, Vol. 75.

By: L. He *, G. Cheng n, Y. Zhu n  & H. Park *

author keywords: Surface curvature; Mechanical deformation; Plasticity; Surface diffusion; Defects nucleation; Nanostructures; Kinetic Monte Carlo
topics (OpenAlex): Microstructure and mechanical properties; Metal and Thin Film Mechanics; Advanced Materials Characterization Techniques
Sources: Web Of Science, NC State University Libraries, ORCID
Added: January 27, 2025

2023 article

Surface Adatom Diffusion-Assisted Dislocation Nucleation in Metal Nanowires

He, L., Cheng, G., Zhu, Y., & Park, H. S. (2023, June 14). Nano Letters, Vol. 23, pp. 5779–5784.

By: L. He *, G. Cheng n, Y. Zhu n  & H. Park *

author keywords: mechanical deformation; plasticity; surfacediffusion; defect nucleation; nanostructures; kinetic Monte Carlo
topics (OpenAlex): Microstructure and mechanical properties; Metal and Thin Film Mechanics; nanoparticles nucleation surface interactions
Sources: Web Of Science, NC State University Libraries
Added: July 10, 2023

2020 article

Competition between shear localization and tensile detwinning in twinned nanowires

Yin, S., Cheng, G., Zhu, Y., & Gao, H. (2020, February 24). Physical Review Materials, Vol. 4.

By: S. Yin *, G. Cheng n, Y. Zhu n  & H. Gao *

topics (OpenAlex): Microstructure and mechanical properties; Semiconductor materials and interfaces; Metal and Thin Film Mechanics
Sources: Web Of Science, NC State University Libraries
Added: March 23, 2020

2020 article

In-situ TEM study of dislocation interaction with twin boundary and retraction in twinned metallic nanowires

Cheng, G., Yin, S., Li, C., Chang, T.-H., Richter, G., Gao, H., & Zhu, Y. (2020, June 30). Acta Materialia.

By: G. Cheng n, S. Yin *, C. Li n, T. Chang n, G. Richter *, H. Gao *, Y. Zhu n 

author keywords: Dislocation slip; Twin boundary; Recoverable plasticity; MD simulations; In-situ TEM
topics (OpenAlex): Microstructure and mechanical properties; Surface and Thin Film Phenomena; Metal and Thin Film Mechanics
Sources: Web Of Science, NC State University Libraries
Added: August 31, 2020

2019 article

Atomic structure of γ″ phase in Mg–Gd–Y–Ag alloy induced by Ag addition

Sha, X., Xiao, L., Chen, X., Cheng, G., Yu, Y., Yin, D., & Zhou, H. (2019, April 14). The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics.

By: X. Sha *, L. Xiao *, X. Chen *, G. Cheng n, Y. Yu *, D. Yin *, H. Zhou*

author keywords: Mg alloys; precipitation; HAADF-STEM; microstructural analysis
topics (OpenAlex): Magnesium Alloys: Properties and Applications; Aluminum Alloys Composites Properties; Microstructure and mechanical properties
Source: Web Of Science
Added: May 20, 2019

2019 article

Hydrogen embrittlement in metallic nanowires

Yin, S., Cheng, G., Chang, T.-H., Richter, G., Zhu, Y., & Gao, H. (2019, May 1). Nature Communications, Vol. 10.

By: S. Yin *, G. Cheng n, T. Chang n, G. Richter *, Y. Zhu n  & H. Gao *

topics (OpenAlex): Hydrogen embrittlement and corrosion behaviors in metals; Corrosion Behavior and Inhibition; Metal and Thin Film Mechanics
TL;DR: The authors combine nanomechanical testing and molecular dynamics simulations to show that hydrogen can suppress surface dislocation nucleation in silver nanowires. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: May 20, 2019

2019 article

In Situ Nano-thermomechanical Experiment Reveals Brittle to Ductile Transition in Silicon Nanowires

Cheng, G., Zhang, Y., Chang, T.-H., Liu, Q., Chen, L., Lu, W. D., … Zhu, Y. (2019, July 17). Nano Letters, Vol. 19, pp. 5327–5334.

By: G. Cheng n, Y. Zhang *, T. Chang n, Q. Liu *, L. Chen *, W. Lu *, T. Zhu *, Y. Zhu n 

author keywords: Brittle to ductile transition; dislocation; plasticity; silicon nanowire; in situ TEM
topics (OpenAlex): Nanowire Synthesis and Applications; Microstructure and mechanical properties; Semiconductor materials and interfaces
TL;DR: In situ high resolution TEM imaging and atomistic reaction pathway modeling reveal that the unconventional ½〈110〉{001} dislocations become highly active with increasing temperature and thus play a critical role in the formation of deformation bands, leading to transition from brittle fracture to dislocation-mediated failure in Si nanowires at elevated temperatures. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: September 3, 2019

2019 article

Transition of Deformation Mechanisms in Single-Crystalline Metallic Nanowires

Yin, S., Cheng, G., Richter, G., Gao, H., & Zhu, Y. (2019, July 15). ACS Nano, Vol. 13, pp. 9082–9090.

By: S. Yin *, G. Cheng n, G. Richter *, H. Gao * & Y. Zhu n 

author keywords: dislocation slip; twinning; plasticity; nanowire; in situ TEM
topics (OpenAlex): Microstructure and mechanical properties; Semiconductor materials and interfaces; Aluminum Alloys Composites Properties
TL;DR: Using in situ transmission electron microscopy tensile tests and molecular dynamics simulations, an additional factor, cross-sectional shape, is reported that can affect the competition between the deformation mechanisms in single crystalline FCC metallic NWs. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: September 23, 2019

2017 article

Anomalous Tensile Detwinning in Twinned Nanowires

Cheng, G., Yin, S., Chang, T.-H., Richter, G., Gao, H., & Zhu, Y. (2017, December 21). Physical Review Letters, Vol. 19.

By: G. Cheng n, S. Yin *, T. Chang n, G. Richter *, H. Gao * & Y. Zhu n 

topics (OpenAlex): Microstructure and mechanical properties; Metal and Thin Film Mechanics; Nanowire Synthesis and Applications
TL;DR: Using quantitative in situ transmission electron microscopy based nanomechanical testing and molecular dynamics simulations, a transition of the deformation mechanism from localized dislocation slip to delocalized plasticity via an anomalous tensile detwinning mechanism in bitwinned metallic NWs is reported. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 article

On the origin and behavior of irradiation-induced c-component dislocation loops in magnesium

Xu, W., Zhang, Y., Cheng, G., Mathaudhu, S. N., Scattergood, R. O., Koch, C. C., … Zhu, Y. (2017, April 11). Acta Materialia, Vol. 131, pp. 457–466.

By: W. Xu n, Y. Zhang *, G. Cheng n, S. Mathaudhu *, R. Scattergood n, C. Koch n, E. Lavernia *, Y. Zhu n 

author keywords: In situ transmission electron microscopy; C-component dislocation loop; Atomic structure; Magnesium; Stacking faults
topics (OpenAlex): Microstructure and mechanical properties; Magnesium Alloys: Properties and Applications; Fusion materials and technologies
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2016 article

On the size-dependent elasticity of penta-twinned silver nanowires

Chang, T.-H., Cheng, G., Li, C., & Zhu, Y. (2016, March 10). Extreme Mechanics Letters, Vol. 8, pp. 177–183.

By: T. Chang n, G. Cheng n, C. Li n & Y. Zhu n 

Contributors: T. Chang n, G. Cheng n, C. Li n & Y. Zhu n 

author keywords: Nanowires; Nanomechanics; Elasticity size effect
topics (OpenAlex): Advanced Sensor and Energy Harvesting Materials; ZnO doping and properties; Electronic Packaging and Soldering Technologies
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 article

Evolution of Irradiation‐Induced Vacancy Defects in Boron Nitride Nanotubes

Cheng, G., Yao, S., Sang, X., Hao, B., Zhang, D., Yap, Y. K., & Zhu, Y. (2015, December 18). Small, Vol. 12, pp. 818–824.

By: G. Cheng n, S. Yao n, X. Sang n, B. Hao*, D. Zhang *, Y. Yap *, Y. Zhu n 

Contributors: G. Cheng n, S. Yao n, X. Sang n, B. Hao*, D. Zhang *, Y. Yap *, Y. Zhu n 

author keywords: boron nitride; nanotubes; electron irradiation; TEM; irradiation-induced defects; vacancy defects
topics (OpenAlex): Boron and Carbon Nanomaterials Research; Graphene research and applications; MXene and MAX Phase Materials
TL;DR: Irradiation-induced vacancy defects in multiwalled (MW) boron nitride nanotubes are investigated via in situ high-resolution transmission electron microscope operated at 80 kV, with a homogeneous distribution of electron beam intensity. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

Large anelasticity and associated energy dissipation in single-crystalline nanowires

Nature Nanotechnology, 10(8), 687–691.

By: G. Cheng n, C. Miao *, Q. Qin n, J. Li n, F. Xu n, H. Haftbaradaran *, E. Dickey n , H. Gao *, Y. Zhu n 

Contributors: G. Cheng n, C. Miao *, Q. Qin n, J. Li n, F. Xu n, H. Haftbaradaran *, E. Dickey n , H. Gao *, Y. Zhu n 

topics (OpenAlex): Nonlocal and gradient elasticity in micro/nano structures; Thermoelastic and Magnetoelastic Phenomena; Elasticity and Material Modeling
TL;DR: It is shown that single-crystalline ZnO and p-doped Si nanowires can exhibit anelastic behaviour that is up to four orders of magnitude larger than the largest anelastically observed in bulk materials, with a timescale on the order of minutes, suggesting that crystalline Nanowires with point defects are promising materials for energy damping applications. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2015 article

Recoverable plasticity in penta-twinned metallic nanowires governed by dislocation nucleation and retraction

Qin, Q., Yin, S., Cheng, G., Li, X., Chang, T.-H., Richter, G., … Gao, H. (2015, January 13). Nature Communications, Vol. 6.

By: Q. Qin n, S. Yin *, G. Cheng n, X. Li *, T. Chang n, G. Richter *, Y. Zhu n , H. Gao *

Contributors: Q. Qin n, S. Yin *, G. Cheng n, X. Li *, T. Chang n, G. Richter *, Y. Zhu n , H. Gao *

topics (OpenAlex): Microstructure and mechanical properties; Metal and Thin Film Mechanics; ZnO doping and properties
TL;DR: A dislocation-mediated, time-dependent and fully reversible plastic behaviour in penta-twinned silver nanowires is reported, which originates from the surface nucleation, propagation and retraction of partial dislocations. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 article

Strain Hardening and Size Effect in Five-fold Twinned Ag Nanowires

Narayanan, S., Cheng, G., Zeng, Z., Zhu, Y., & Zhu, T. (2015, May 12). Nano Letters, Vol. 15, pp. 4037–4044.

By: S. Narayanan *, G. Cheng n, Z. Zeng *, Y. Zhu n  & T. Zhu *

Contributors: S. Narayanan *, G. Cheng n, Z. Zeng *, Y. Zhu n  & T. Zhu *

author keywords: Nanowire; twin boundary; strain hardening; size effects; in situ experiment; molecular dynamics
topics (OpenAlex): Microstructure and mechanical properties; Aluminum Alloys Composites Properties; Metal and Thin Film Mechanics
TL;DR: This work provides mechanistic insights into enhancing the tensile ductility of metallic nanostructures by engineering the internal interfaces and defects by nanomechanical testing and atomistic modeling. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 article

A new metastable precipitate phase in Mg–Gd–Y–Zr alloy

Zhou, H., Xu, W. Z., Jian, W. W., Cheng, G. M., Ma, X. L., Guo, W., … Zhu, Y. T. (2014, May 13). The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics, Vol. 94, pp. 2403–2409.

By: H. Zhou n, W. Xu n, W. Jian n, G. Cheng n, X. Ma  n, W. Guo *, S. Mathaudhu n, Q. Wang *, Y. Zhu n 

author keywords: magnesium alloys; metastable phases; base-centred orthorhombic structure; phase transformations
topics (OpenAlex): Magnesium Alloys: Properties and Applications; Hydrogen Storage and Materials; Metal and Thin Film Mechanics
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 article

Design and operation of silver nanowire based flexible and stretchable touch sensors

Cui, Z., Poblete, F. R., Cheng, G., Yao, S., Jiang, X., & Zhu, Y. (2014, November 26). Journal of Materials Research/Pratt's Guide to Venture Capital Sources, Vol. 30, pp. 79–85.

By: Z. Cui n, F. Poblete  n, G. Cheng n, S. Yao n, X. Jiang n  & Y. Zhu n 

Contributors: Z. Cui n, F. Poblete  n, G. Cheng n, S. Yao n, X. Jiang n  & Y. Zhu n 

topics (OpenAlex): Advanced Sensor and Energy Harvesting Materials; Nanomaterials and Printing Technologies; Tactile and Sensory Interactions
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 article

Mechanical Properties of Silicon Carbide Nanowires: Effect of Size-Dependent Defect Density

Cheng, G., Chang, T.-H., Qin, Q., Huang, H., & Zhu, Y. (2014, January 1). Nano Letters, Vol. 14, pp. 754–758.

By: G. Cheng n, T. Chang n, Q. Qin n, H. Huang* & Y. Zhu n 

Contributors: G. Cheng n, T. Chang n, Q. Qin n, H. Huang* & Y. Zhu n 

author keywords: Size effect; ultrahigh strength; in situ tensile testing; brittle fracture; nanomechanics
topics (OpenAlex): Silicon Carbide Semiconductor Technologies; Advanced ceramic materials synthesis; Diamond and Carbon-based Materials Research
TL;DR: The SiC NWs are found to deform linear elastically until brittle fracture, and their fracture origin is identified in the 3C structures with inclined SFs, rather than the highly defective structures. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 article

Dislocations with edge components in nanocrystalline bcc Mo

Cheng, G. M., Xu, W. Z., Jian, W. W., Yuan, H., Tsai, M. H., Zhu, Y. T., … Millett, P. C. (2013, February 1). Journal of Materials Research/Pratt's Guide to Venture Capital Sources, Vol. 28, pp. 1820–1826.

By: G. Cheng n, W. Xu n, W. Jian n, H. Yuan n, M. Tsai n, Y. Zhu n , Y. Zhang *, P. Millett *

Contributors: G. Cheng n, W. Xu n, W. Jian n, H. Yuan n, M. Tsai n, Y. Zhu n , Y. Zhang *, P. Millett *

topics (OpenAlex): Microstructure and mechanical properties; Metal and Thin Film Mechanics; Boron and Carbon Nanomaterials Research
Sources: NC State University Libraries, ORCID, NC State University Libraries
Added: August 6, 2018

2013 article

In-situ atomic-scale observation of irradiation-induced void formation

Xu, W., Zhang, Y., Cheng, G., Jian, W., Millett, P. C., Koch, C. C., … Zhu, Y. (2013, August 5). Nature Communications, Vol. 4.

By: W. Xu n, Y. Zhang *, G. Cheng n, W. Jian n, P. Millett *, C. Koch n, S. Mathaudhu *, Y. Zhu n 

topics (OpenAlex): Fusion materials and technologies; Nuclear materials and radiation effects; Nuclear Materials and Properties
TL;DR: In-situ atomic-scale observation of the nucleation and growth of voids in hexagonal close-packed magnesium under electron irradiation shows that the initial growth in length is controlled by slow nucleation kinetics of vacancy layers on basal facets and anisotropic vacancy diffusivity, and the subsequent thickness growth is driven by thermodynamics to reduce surface energy. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 journal article

Physics and model of strengthening by parallel stacking faults

Applied Physics Letters, 103(13), 133108.

By: W. Jian n, G. Cheng n, W. Xu n, C. Koch n, Q. Wang*, Y. Zhu n , S. Mathaudhu n

topics (OpenAlex): Magnesium Alloys: Properties and Applications; Aluminum Alloys Composites Properties; Microstructure and mechanical properties
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2012 article

Morphology, structure and composition of precipitates in Al0.3CoCrCu0.5FeNi high-entropy alloy

Tsai, M.-H., Yuan, H., Cheng, G., Xu, W., Tsai, K.-Y., Tsai, C.-W., … Zhu, Y. T. (2012, October 10). Intermetallics, Vol. 32, pp. 329–336.

By: M. Tsai n, H. Yuan  n, G. Cheng n, W. Xu n, K. Tsai*, C. Tsai *, W. Jian n, C. Juan* ...

Contributors: M. Tsai n, H. Yuan  n, G. Cheng n, W. Xu n, K. Tsai*, C. Tsai *, W. Jian n, C. Juan* ...

author keywords: Precipitates; Microstructure; Widmanstatten morphology; Electron microscopy; transmission
topics (OpenAlex): High Entropy Alloys Studies; High-Temperature Coating Behaviors
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2012 article

Significant hardening due to the formation of a sigma phase matrix in a high entropy alloy

Tsai, M.-H., Yuan, H., Cheng, G., Xu, W., Jian, W. W., Chuang, M.-H., … al. (2012, November 7). Intermetallics, Vol. 33, pp. 81–86.

By: M. Tsai n, H. Yuan n, G. Cheng n, W. Xu n, W. Jian n, M. Chuang*, C. Juan*, A. Yeh * ...

Contributors: M. Tsai n, H. Yuan n, G. Cheng n, W. Xu n, W. Jian n, M. Chuang*, C. Juan*, A. Yeh *, S. Lin *, Y. Zhu n 

author keywords: Age-hardening; Precipitates; Electron microscopy, transmission
topics (OpenAlex): High Entropy Alloys Studies; High-Temperature Coating Behaviors; Additive Manufacturing Materials and Processes
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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