Internal friction mechanism of Fe–19Mn alloy at low and high strain amplitude

Huang, Shuke; Huang, Wenrong; Liu, Jianhui; Teng, Jie; Li, Ning; Yan, Wen

doi:10.1016/j.msea.2012.10.060

Cited by 31 publications

(17 citation statements)

References 16 publications

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“…Because of the interaction between solute ZnO NPs and dislocations, the internal friction values were also related to a thermal background. At room temperature, internal friction was directly proportional to the crystalline size of β-Sn (Huang et al , 2013). The Debye temperature is a measure of the vibrational response of the material and, therefore, intimately connected with properties like heat capacity, thermal expansion and vibrational entropy.…”

Section: Resultsmentioning

confidence: 99%

ZnO nanoparticles and compositional dependence of structural, thermal, mechanical and electrical properties of eutectic SAC355 lead-free solder

Al-sorory

Gumaan

Shalaby

2022

SSMT

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Purpose This paper aims to summarise the effects of ZnO nanoparticles (0.1, 0.3, 0.5, 0.7 and 1.0 Wt.%) on the structure, mechanical, electrical and thermal stability of Sn–3.5Ag–0.5Cu (SAC355) solder alloys for high-performance applications. Design/methodology/approach The phase identification and morphology of the solders were studied using X-ray diffraction and scanning electron microscopy. Thermal parameters were investigated using differential scanning calorimetry. The elastic parameters such as Young's modulus (E) and internal friction (Q−1) were investigated using the dynamic resonance technique, whereas the Vickers hardness (Hv) and creep indentation (n) were examined using a Vickers microhardness tester. Findings Microstructural analysis revealed that ZnO nanoparticles (NPs) were distributed uniformly throughout the Sn matrix. Furthermore, addition of 0.1, 0.3 and 0.7 Wt.% of ZnO NPs to the eutectic (SAC355) prevented crystallite size reduction, which increased the strength of the solder alloy. Mechanical parameters such as Young's modulus improved significantly at 0.1, 0.3 and 0.7 Wt.% ZnO NP contents compared to the ZnO-free alloy. This variation can be understood by considering the plastic deformation. The Vickers hardness value (Hv) increased to its maximum as the ZnO NP content increased to 0.5. A stress exponent value (n) of approximately two in most composite solder alloys suggested that grain boundary sliding was the dominant mechanism in this system. The electrical resistance (ρ) increased its maximum value at 0.5 Wt.% ZnO NPs content. The addition of ZnO NPs to plain (SAC355) solder alloys increased the melting temperature (Tm) by a few degrees. Originality/value Development of eutectic (SAC355) lead-free solder doped with ZnO NPs use for electronic packaging.

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Section: Resultsmentioning

confidence: 99%

ZnO nanoparticles and compositional dependence of structural, thermal, mechanical and electrical properties of eutectic SAC355 lead-free solder

Al-sorory

Gumaan

Shalaby

2022

SSMT

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“…It is well known that four damping sources 6,7 , including stacking fault (SF), boundaries in the γ-austenite and ε-martensite, ε-martensite/γ-austenite interfaces and ε-martensitic variant boundaries, are presented in Fe-Mn alloys with γ-austenite (fcc) to ε-martensite (hcp) phase transformation. Boundaries mentioned above are essentially formed by slipping of Shockley partial dislocations and the density of Shockley partial dislocations depends on the stacking fault energy (SFE) of the alloy [8][9][10] . The damping mechanism was described by the G-L dislocation motion model proposed by Granato and Lücke 1,11 , indicating that the high damping capacity is originated from the hysteretic movement of partial dislocations under cyclic stress.…”

Section: Introductionmentioning

confidence: 99%

Effects of Cold Rolling Deformation on Microstructure and Damping Capacity of a Fe-Mn-Cr-Co-Si Alloy

Meng

Zhang

2019

Mat. Res.

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The microstructure evolution of Fe-19Mn-8Cr-1Co-0.2Si (wt.%) alloy and Fe-19Mn (wt.%) alloy during cold rolling and its effect on the damping capacity of the two alloys were investigated. It was shown that the damping capacity of the two alloys was enhanced significantly owing to the deformationinduced ε-martensite and stacking faults. The Fe-19Mn-8Cr-1Co-0.2Si alloy exhibited an accelerated phase transformation from γ-austenite to ε-martensite due to a higher content of retained γ-austenite and larger grain sizes compared with the Fe-19Mn alloy, resulting in a higher maximal increment of damping capacity in this alloy caused by deformation. It was observed that no twinned ε-martensite was generated in the Fe-19Mn-8Cr-1Co-0.2Si alloy during cold rolling, resulting in a remarkable increase in the volume fraction of α'-martensite owing to no impediment to ε → α' transformation, hence the deterioration of damping capacity was slow because the α'-martensite weakened the pinning effect of dislocations on damping sources. In addition, new damping sources were provided due to the occurance of γ-austenite twinning in the Fe-19Mn-8Cr-1Co-0.2Si alloy.

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“…Fe-Mn alloys are of significant interest due to their potential application in manufacturing components to decrease vibration and noise arising from moving metallic parts in machines and vehicles [1][2][3]. On the one hand, Fe-Mn alloy possesses pronounced damping capacity which is attributed to four damping sources such as stacking fault (SF) boundaries in ε-martensite with a hexagonal close-packed crystal structure and austenite with a face-centered cubic crystal structure, ε-martensite variant boundaries and ε-martensite/austenite interface boundaries [4][5][6][7][8][9]. On the other hand, Fe-Mn alloy also possesses excellent mechanical properties and low cost by comparison with other non-ferrous Mn-Cu, Ni-Ti and Mg damping alloys [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…For a long time, many studies have been done to reveal damping mechanism of Fe-Mn alloy and its affecting factors such as Mn content, other alloy addition, heat treatment, deformation, thermomechancial treatment, strain amplitude and temperature, etc. [1][2][3][4][5][6][7][8][9]. Moreover, present studies mainly focus on Fe-15-23 mass% Mn alloys.…”

Section: Introductionmentioning

confidence: 99%

“…Huang and co-workers think that the four damping interfaces are formed by the slipping of Shockley partial dislocations. Hence, the movement of these interfaces is related to the movement of Shockley partial dislocations whose density depends on SF energy [3,6,8]. As we know that the effect of Mn content on SF energy is not linear, showing that the SF energy decreases at first and then increases with increasing Mn content [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Manganese dependence of microstructure and mechanical properties in Fe–Mn alloy

Chen

Zhang

2018

Materials Science and Technology

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Two Fe–Mn alloys with relatively low Mn content were designed. The microstructure characteristics and resultant mechanical properties were investigated in detail by means of electron back-scattered diffraction, transmission electron microscopy and X-ray diffraction. The results show that the formation of α′-martensite is effectively suppressed and the yield strength and total elongation are significantly enhanced by increasing Mn content from 12 to 13 mass%. A great amount of α′-martensite can effectively enhance strain hardening rate, but they deteriorate ductility. The austenite grain is always divided by multiple-variant ϵ-martensite plate. In addition, the prior austenite grain boundaries and austenite/ ϵ-martensite interfaces can act as obstacle to suppress the growth of ϵ-martensite plates.

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Internal friction mechanism of Fe–19Mn alloy at low and high strain amplitude

Cited by 31 publications

References 16 publications

ZnO nanoparticles and compositional dependence of structural, thermal, mechanical and electrical properties of eutectic SAC355 lead-free solder

ZnO nanoparticles and compositional dependence of structural, thermal, mechanical and electrical properties of eutectic SAC355 lead-free solder

Effects of Cold Rolling Deformation on Microstructure and Damping Capacity of a Fe-Mn-Cr-Co-Si Alloy

Manganese dependence of microstructure and mechanical properties in Fe–Mn alloy

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