The phenomenon of seizure and its investigation

Семенов, А. П.

doi:10.1016/0043-1648(61)90236-8

Cited by 65 publications

(12 citation statements)

References 1 publication

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“…Parks concluded that the energy barrier is recrystallization; however, Erdmann-Jesnitzer believed that energy barrier is diffusion [26]. Semenov [27] suggested that the energy barrier comes from the crystal mis-orientation at the contact surfaces. His findings showed that bonding occurred for Al, Cu and silver (Ag) at the temperature of liquid nitrogen, hence it cannot be attributed to diffusion or recrystallization.…”

Section: Basics and Mechanismsmentioning

confidence: 99%

Accumulative Roll Bonding—A Review

2019

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Different manufacturing processes can be utilized to fabricate light-weight high-strength materials for their applications in a wide spectrum of industries such as aerospace, automotive and biomedical sectors among which accumulative roll bonding (ARB) is a promising severe plastic deformation (SPD) method capable of creating ultrafine grains (UFG) in the final microstructure. The present review discusses recent advancements in the ARB process starting with the ARB basics, intricacies of the underlying mechanisms and physics, different materials, surface and rolling parameters, and finally its key effects on different properties such as strength, ductility, fatigue, toughness, superplasticity, tribology and thermal characteristics. Moreover, results of recent computational investigations have also been briefed towards the end. It is believed that ARB processing is an emerging area with tremendous opportunities in the industrial sector and ample potential in tailoring microstructures for high-performance materials.

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Section: Basics and Mechanismsmentioning

confidence: 99%

Accumulative Roll Bonding—A Review

2019

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“…Although numerous efforts have been made to understand this problem, many suggested definitions of scuffing [4][5][6] describe the condition after an occurrence of scuffing, but do not describe the mechanism producing scuffing. Other terms, such as seizure [5][6][7][8][9][10], scoring [2,5,6,11,12], and galling [13][14][15] have also been used to describe catastrophic phenomena, but these definitions are not precise and depend on literature.…”

Section: Introductionmentioning

confidence: 99%

In Situ Observation of Wear Process Before and During Scuffing in Sliding Contact

et al. 2011

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In this study, a direct observation of a point contact area was conducted to understand the scuffing phenomenon. The contact area was produced between a rotating sapphire disc and a stationary steel ball and it was lubricated using n-hexadecane. The image detected by a colour digital CCD camera, load, and friction were synchronously recorded by a computer during the test. It was found that wear debris produced in the contact area played an important role in the wear process, which includes running-in and scuffing. In the test, debris particles accumulated in the inlet zone, and some particles entered the contact area to cause abrasive wear of the ball surface, even in the light-load stages. During the running-in process, the abrasive wear by debris particles changed the conformity between the sliding surfaces. In the high-load stage, just before the occurrence of scuffing, the whole contact area was flattened at once. When scuffing occurred, the contact area suddenly expanded. The conformity of the contact area was dramatically changed during its expansion. The flattening of the whole contact area and dramatic expansion with changing the conformity seemed to play important roles in scuffing.

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Section: Theories Of Metallic Bond Formationmentioning

confidence: 99%

“…According to the theory, an existing energy barrier must be overcome before welding can occur [97,98]. Parks [98] states that recrystallisation which led to grain growth in metal removes the film barrier while Erdmann-Jesnitzer and Kazakov [94,97] suggest that it is interdiffusion between the intimate contact surface that is responsible in the bond formation other than plastic deformation. The theory of misorientation of the crystals lattice at the contact surface proposed by Semenov [97] deduces that certain distortion of the crystal lattice of the metals must present to create bond, implying that the existence of the localized energy barrier must be overcome.…”

Section: Theories Of Metallic Bond Formationmentioning

confidence: 99%

“…Parks [98] states that recrystallisation which led to grain growth in metal removes the film barrier while Erdmann-Jesnitzer and Kazakov [94,97] suggest that it is interdiffusion between the intimate contact surface that is responsible in the bond formation other than plastic deformation. The theory of misorientation of the crystals lattice at the contact surface proposed by Semenov [97] deduces that certain distortion of the crystal lattice of the metals must present to create bond, implying that the existence of the localized energy barrier must be overcome. However, the Conrad and Rice [95] proves the creation of bond is possible without deformation ('energyfree' bonding) provided that a clean mating interface is established during the process.…”

Section: Theories Of Metallic Bond Formationmentioning

confidence: 99%

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An analysis of solid-state recycling of aluminium alloy AA6061 from controllable hot extrusion processes

Shamsudin¹

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Solid-state recycling of machining chip wastes via hot extrusion has nowadays been seen important to reduce energy consumption and greenhouse effect, perceived more important than the recycling by remelting. Characteristics of machining chips that are micro in size and large area-to-volume ratio in nature, melting can cause a massive molten metal vaporization leading to huge material losses. The hot extrusion process Contents iv

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The phenomenon of seizure and its investigation

Cited by 65 publications

References 1 publication

Accumulative Roll Bonding—A Review

Accumulative Roll Bonding—A Review

In Situ Observation of Wear Process Before and During Scuffing in Sliding Contact

An analysis of solid-state recycling of aluminium alloy AA6061 from controllable hot extrusion processes

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