Embrittlement, Engineering Alloys

Banerji, Samir K.; Briant, C. L.

doi:10.1016/b0-12-227410-5/00221-0

Cited by 20 publications

(2 citation statements)

References 2 publications

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“…Another failure mode that could be encountered near the weld is that of liquid metal embrittlement. Copper is susceptible to embrittlement by Hg, Ga, Zn, Sn, Pb, Bi, Li, Na and In [52][53][54][55].…”

Section: Liquid Metal Embrittlementmentioning

confidence: 99%

A Comprehensive Review of Fatigue Strength in Pure Copper Metals (DHP, OF, ETP)

Jiménez-Ruiz,

Lostado-Lorza,

Berlanga-Labari

2024

Metals

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Due to their exceptional electrical and thermal conductivity properties, high-purity copper (Cu-DHP) and copper alloys of similar composition, such as electrolytic tough-pitch (ETP), oxygen-free electronic (OFE) and oxygen-free (OF), have often been used in the manufacture of essential components for the electrical, electronic and power generation industries. Since these components are subject to cyclic loads in service, they can suffer progressive structural damage that causes failure due to fatigue. The purpose of this review is to examine the most relevant aspects of mechanical fatigue in Cu-DHP, ETP, OFE and OF. The impact of many factors on fatigue strength (Se), including the frequency, temperature, chemical environment, grain size, metallurgical condition and load type, were analyzed and discussed. Stress–life (S-N) curves under zero mean stress (σm = 0) were found for high-cycle fatigue (HCF). For non-zero mean stress (σm ≠ 0), stress curves were based on a combination of Gerber, Soderberg and ASME elliptic failure criteria. Stress–life (S-N) curves were also developed to correlate fatigue strength (Se) with stress amplitude (σa), yield strength (Syp) and ultimate strength (Sut). Finally, for low-cycle fatigue (LCF), strain–life (ε-N) curves that establish a relationship between the number of cycles to failure (N) and total strain amplitude (εplastic) were determined. Hence, this review, as well as the proposed curves, provide valuable information to understand fatigue failure for these types of materials.

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Section: Liquid Metal Embrittlementmentioning

confidence: 99%

A Comprehensive Review of Fatigue Strength in Pure Copper Metals (DHP, OF, ETP)

Jiménez-Ruiz,

Lostado-Lorza,

Berlanga-Labari

2024

Metals

View full text Add to dashboard Cite

show abstract

“…It occurs inside the solidifying mushy region where solid is sufficiently developed to build up stresses causing a crack that cannot be healed by the flow of liquid metal [2] . Hot cracking prevents the use of materials with a large solidification interval [3] as well as the use of more efficient process conditions leading to stress increase [4] . But it is also influenced by the morphology of the grain structure: a fine microstructure decreases the sensitivity to hot cracking by local redistribution of the deformation, the slips at grain boundaries being better absorbed [5] .…”

Section: Introductionmentioning

confidence: 99%