Results 291 to 300 of about 10,399,078 (343)

Interactive contraction nanotwins-stacking faults strengthening mechanism of Mg alloys

Acta Materialia, 2019
Light-weight Mg alloys with higher strength are especially desirable for the applications in transportation, aerospace, electronic components and implants owing to their high stiffness, abundant raw materials and environmental friendliness. Nevertheless,
Qiuming Peng, Yong Sun, Bingcheng Ge, H. Fu, Qun Zu, Xiaozhi Tang, Jianyu Huang   +6 more
semanticscholar   +1 more source

Strengthening Mechanisms in Fatigue

1970
The present state of knowledge of the role of metallurgical structure in the achievement of high fatigue resistance is critically examined and the application of such knowledge is discussed. At the present time resistance to fatigue is best characterized in terms of phenomenological parameters such as the cyclic strain hardening exponent. The effect of
CE Feltner, P Beardmore
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Mechanical Properties and Strengthening Mechanisms

2011
Abstract This chapter introduces the concepts of mechanical properties and the various underlying metallurgical mechanisms that can be used to alter the strength of materials. The mechanical properties discussed include elasticity, plasticity, creep deformation, fatigue, toughness, and hardness.
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Substructure strengthening mechanisms

Metallurgical Transactions A, 1977
The mechanisms which give rise to substructural strength originate in the dislocation character of the substructure boundary, in the size of sources for continued slip which the boundaries permit, and in the size of the cells or subgrains. The interrelation of these factors must be considered in obtaining a general view of the strengthening.
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Strengthening mechanisms in Cu3Au

Acta Metallurgica, 1978
The effect of temperature and strain rate on the mechanical behavior of originally disordered and ordered polycrystalline Cu3Au was investigated in the range 273–648 K. While stress-strain curves exhibit serrations identical to those attributable to dynamic strain aging, no correlation seems to exist between the presence of the serrations and the yield
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Strength and Strengthening Mechanisms

1984
The strength of a material depends on various intrinsic and extrinsic factors. Although the most important is the chemical composition, the properties can be manipulated by altering the structure. Various mechanical, thermal, and surface treatments are used to create the desired balance of strength, hardness, and ductility.
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Twinning behavior and strengthening mechanism in a microalloyed TiAl alloy

Materials Science & Engineering: A, 2023
Tielong Sun, Yongfeng Liang, Gang Yang, Zhichao Guo, Jun Cao, Yanxun Mu, Junpin Lin   +6 more
semanticscholar   +1 more source

Strengthening mechanisms in nanocrystalline alloys

Materials Science and Engineering: A, 2008
Abstract The mechanisms for strengthening nanocrystalline metals by alloy additions are reviewed and a new model for nano-particle strengthening by Orowan bypassing in nano-grains is proposed. Recent experimental results for three different nanocrystalline alloy systems, Fe–Pb, Fe–Al 2 O 3 and Al–Pb are presented and analyzed in terms of non ...
R.O. Scattergood, C.C. Koch, K.L. Murty, D. Brenner   +3 more
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Strengthening mechanisms in nanostructured aluminum

Materials Science and Engineering: A, 2008
Structural parameters that characterize deformation produced nanostructures are the structural morphology, boundary spacing, boundary misorientation and interior dislocation density. These parameters have been determined and related to the yield stress of nanostructured Al produced by accumulative roll bonding (ARB) based on mechanisms such as ...
X. Huang, N. Kamikawa, N. Hansen
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Selective laser melted equiatomic CoCrFeMnNi high-entropy alloy: Microstructure, anisotropic mechanical response, and multiple strengthening mechanism

Journal of Alloys and Compounds, 2019
One of the major challenges of equiatomic CoCrFeMnNi HEA is to manufacture parts with complex geometry that have higher yield strength. Equiatomic CoCrFeMnNi HEA was successfully fabricated in the present study with selective laser melting.
Young-Kyun Kim, Jungho Choe, Kee‐Ahn Lee   +2 more
semanticscholar   +1 more source