Effect of dispersed liquid B2O3 particles on high-temperature mechanical behavior of copper bicrystals

Miura, Hiromi; Sakai, Taku; Tamura, Hisashi; Gottstein, Günter

doi:10.1016/s1359-6454(98)00411-x

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…While most of the particles encountered in metallic materials are crystalline and solid, amorphous [28] or liquid [29,30] particles are also reported. One characteristic feature of these particles is that they may be mobile, i.e., they can travel with the migrating boundaries, especially at very high temperatures [28] and low driving force [31].…”

Section: Classification Of Second-phase Particlesmentioning

confidence: 99%

The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials

Huang

Marthinsen

Zhao

et al. 2018

Progress in Materials Science

537

113

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Most industrial alloys contain a matrix phase and dispersed second-phase particles. Several thermomechanical processing (TMP) steps are usually needed to produce a final product, during which recrystallization and its related phenomena may take place. Second-phase particles may retard or accelerate recrystallization, depending on their size and spatial distribution, the TMP conditions, among others. Besides their effect on recrystallization kinetics, the introduction of second-phase particles creates additional interfaces within the matrix, it also modifies the grain structure and crystallographic texture after recrystallization, which then either improves or deteriorates the associated mechanical properties of the investigated materials. The interactions between second-phase particles and recrystallization are further complicated when these particles are not stable. In addition to particle coarsening, they can also precipitate out or dissolve into the matrix before, simultaneously with or after recrystallization. This review article attempts to summarize the recent progresses on the complex interaction between second-phase particles and recrystallization and the science behind them. This double-edge effect of second-phase particles on recrystallization behaviour and mechanical properties of metallic materials is still far from being clear. A better understanding of this issue is of high academic and industrial interests, since it provides potential freedom for TMP design and microstructure control.

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Section: Classification Of Second-phase Particlesmentioning

confidence: 99%

The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials

Huang

Marthinsen

Zhao

et al. 2018

Progress in Materials Science

537

113

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“…Under tensile stress, inclusions therefore redistribute matter so as to become aligned perpendicularly to the stress direction, while inclusions already perpendicular to the stress direction tend to flatten 129,260,[357][358][359][360] . Liquid inclusions also tend, in the presence of applied stress, to increase the amount of damage caused by grain boundary sliding 361,362 .…”

Section: Eqmentioning

confidence: 99%

“…129,260,[357][358][359][360] Liquid inclusions also tend, in the presence of applied stress, to increase the amount of damage caused by grain boundary sliding. 361,362 16 Polished section of a Cu-1Pb sample heat treated at 900uC 1 h and 400uC 24 h; selected lead inclusions are indicated by arrows (from Felberbaum) 129 17 Sharp intergranular fracture surface along a quench crack in an experimental high-strength Cu-Ni-Sn-Pb alloy (from Felberbaum) 129 a 3D view; b detail 18 Schematic view of an equilibrated lenticular inclusion situated along a planar grain boundary: the cut is perpendicular to both the grain boundary plane and the triple line (from Felberbaum) 129 At sufficiently high levels of stress, the inclusions may become unstable, particularly if under tensile stress pore nucleation occurs within the inclusion. For the simple case of a circular isolated grain boundary inclusion in a linear elastic solid of Young's modulus E, expressions have been proposed to predict the stress s above which such unstable inclusion spreading occurs.…”

Section: Liquid Metal Embrittlementmentioning

confidence: 99%

Intermediate temperature embrittlement of copper alloys

Laporte¹,

Mortensen²

2009

International Materials Reviews

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Copper and its alloys generally display a severe reduction in ductility between roughly 300°C and 600°C, a phenomenon variously called "intermediate temperature embrittlement" or "ductility trough behaviour". This review of the phenomenon begins by placing it in the wider context of the high-temperature fracture of metals, showing how its occurrence can be rationalized in simple terms on the basis of what is known of intergranular creep fracture and dynamic recrystallisation. Data in the literature are reviewed to identify main causes and mechanisms for embrittlement, first for pure copper, and then for monophase and multiphase copper alloys. Coverage then turns to the "grain boundary embrittlement" phenomenon, caused by the intergranular segregation of even minute quantities of alloying additions or impurities, which appears to worsen dramatically the intermediate temperature embrittlement of copper alloys. Finally, metal-induced embrittlement, including in particular liquid metal embrittlement, is presented as a second mechanism leading to an exacerbation of the intermediate temperature embrittlement of copper and its alloys.

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Shape change of liquid B2O3 particles dispersed in copper crystals during high-temperature deformation

Miura

Sakai

2001

Materials Science and Engineering: A

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Effect of dispersed liquid B2O3 particles on high-temperature mechanical behavior of copper bicrystals

Cited by 4 publications

References 23 publications

The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials

The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials

Intermediate temperature embrittlement of copper alloys

Shape change of liquid B2O3 particles dispersed in copper crystals during high-temperature deformation

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