High temperature creep behavior of SiC whisker-reinforced AlFeVSi composite

Zhu, Shijie; Peng, Lu; Ma, Zhiyuan; Bi, Jing; Wang, F.G.; Wang, Z.G.

doi:10.1016/0921-5093(96)80015-3

Cited by 33 publications

(22 citation statements)

References 24 publications

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“…Furthermore, the model's predictions are also in quite good harmony with the experimental data of composites creep strength increment. In the second set of composites [1,11,12,14], the linearity is not so remarkable as for the first group, and the slope is also lower. The behavior of vs. of this group of composites is in fact, very similar to that of the equiaxial particle reinforced composites, Fig.…”

Section: Elongated Particle Reinforced Compositesmentioning

confidence: 85%

“…The PM materials of Table 1 have been sub-divided in two groups according to the morphology of the reinforcement, namely: materials reinforced by equiaxial particles [5][6][7][8][9] and materials reinforced by elongated particles (whiskers/short fibers) [1,[10][11][12][13][14][15]. This distinction is based on their different creep strength increment, ( ), with respect the corresponding un-reinforced alloys (see Fig.…”

Section: Data Analysis and Discussionmentioning

confidence: 99%

“…The derived products at the interface, such [8] 8009Al-15vol% SiCp 623, 673, 723 1 0.24/0. 24 Park et al (1990) [9] 6061Al-30vol%SiCp a 648, 678 1 0.43/0.39 Pickens et al (1987) [10] 6061Al-20vol%SiCw a 700 ∼4 b 0.53/0.43 Hansen et al (1988) [11] Al-0.8%Al2O3-2vol%SiCw 673 2.7 0.14/0.21 Zhu et al (1996) [12] 8009Al as the formation of aluminum carbide, Al 4 C 3 , particles when SiC is are used as the reinforcing phase, are usually harmful for the good bonding, favoring premature composite failure [16]. It is clear, then, that the PM composites are materials for which damage and/or de-cohesion phenomena are minimized, and the load transfer mechanism can be evaluated more rigorously and in better detail.…”

Section: Materials Investigatedmentioning

confidence: 99%

“…Some important remarks must be emphasized for materials from references [12][13][14]. The lack of information of the reinforcement aspect ratio has been overcome assuming statistical values derived from detailed investigations in extruded aluminum MMCs [1,11,15].…”

Section: Elongated Particle Reinforced Compositesmentioning

confidence: 99%

“…The materials selected for this study have been those processed by the PM route [1,[5][6][7][8][9][10][11][12][13][14][15]. These composite materials have a "firm" bonding between matrix and reinforcement and are less prone to develop unpredictable damage mechanisms or de-cohesion phenomena during creep deformation than materials obtained by the ingot metallurgy, IM, process.…”

Section: Materials Investigatedmentioning

confidence: 99%

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Load partitioning during creep of powder metallurgy metal matrix composites and Shear-Lag model predictions

Fernández¹,

González-Doncel²

2009

Materials Science and Engineering: A

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a b s t r a c tIt was shown in a previous work that the load transfer mechanism plays a relevant role during the high temperature deformation of discontinuously reinforced metal matrix composites, MMCs. This idea emerged from the comparison of the creep data of a powder metallurgy, PM, 6061Al-15vol%SiC w composite and the corresponding un-reinforced 6061Al alloy. The idea was further supported by a qualitative analysis of the creep data of MMCs from a number of investigations reported in the literature, particularly of PM composites. In the present work a quantitative and more thorough study of the creep data of these PM composites is presented. Specifically, a well-known Shear-Lag model is used to compare the composites creep strength increment and the predicted load transferred to the reinforcement. These new results sustain more thoroughly the relevance of the load transfer mechanism during creep of MMCs.

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Section: Elongated Particle Reinforced Compositesmentioning

confidence: 85%

Section: Data Analysis and Discussionmentioning

confidence: 99%

Section: Materials Investigatedmentioning

confidence: 99%

Section: Elongated Particle Reinforced Compositesmentioning

confidence: 99%

Section: Materials Investigatedmentioning

confidence: 99%

See 3 more Smart Citations

Load partitioning during creep of powder metallurgy metal matrix composites and Shear-Lag model predictions

Fernández¹,

González-Doncel²

2009

Materials Science and Engineering: A

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Plastic Flow Behavior of an Advanced 9Cr Martensitic Heat‐Resistant Steel at High Temperatures

Gao

Zhang

2021

steel research int.

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Advanced 9Cr–1.5Mo–1Co–VNbBN martensitic steel is used for thick castings under ultra‐supercritical conditions. The microstructure, including martensitic laths, dislocations, and precipitations, is observed before and after deformation by transmission electron microscope. Steady‐state flow behavior and deformation mechanisms are investigated by analyzing strain‐rate jump test data at 600–650 °C. Results show that the plastic flow behavior of 9Cr steel is well characterized by a stress power law whose apparent stress exponent n is between 20.5 and 27.0 for the three test temperatures. The apparent activation energy of 621 kJ mol is estimated for the plastic flow of this steel, and the stress exponent and apparent activation energy are particularly high. The analysis incorporates the effect of a threshold stress, which is associated with the pinning effect of particles on dislocations. The truly modified stress exponent n0 is 4.6 at all test temperatures after removing the threshold stress, which is close to that of dislocation‐climb deformation, indicating the deformation of this steel can be described as a lattice diffusion‐controlled dislocation‐climb mechanism. Transmission electron microscopy observation is conducted to characterize the interaction of dislocation–precipitate to provide structural evidence for specific deformation mechanisms.

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A Review on Tribo-Mechanical Behaviour and Corrosion Performance of AA8000 Based Composites

Sharma¹,

Pradhan²,

Jain³

2021

Lecture Notes in Mechanical Engineering

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High temperature creep behavior of SiC whisker-reinforced AlFeVSi composite

Cited by 33 publications

References 24 publications

Load partitioning during creep of powder metallurgy metal matrix composites and Shear-Lag model predictions

Load partitioning during creep of powder metallurgy metal matrix composites and Shear-Lag model predictions

Plastic Flow Behavior of an Advanced 9Cr Martensitic Heat‐Resistant Steel at High Temperatures

A Review on Tribo-Mechanical Behaviour and Corrosion Performance of AA8000 Based Composites

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