Revealing corrosion behavior of B4C/pure Al composite at different interfaces between B4C particles and Al matrix in NaCl electrolyte

Han, Huimin; Jiang, Longtao; Chao, Zhenlong; Xue, Wei; Zhu, Ming; Han, Bingzhuo; Zhang, Runwei; Du, Shanqi; Luo, Tian; Mei, Yong

doi:10.1016/j.jmrt.2023.11.163

Cited by 7 publications

(1 citation statement)

References 68 publications

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“…Figure 7 presents the polarization curves of samples after various RRA treatments. The linear fit and Tafel extrapolation techniques are employed based on the cathodic and anodic branches of the polarization curves [49] to calculate the corrosion potential (Ecorr) and corrosion current density (Icorr). Table 5 presents the values of Ecorr and Icorr, which are quantitatively assessed to determine the effect of retrogression cooling rate on corrosion resistance.…”

Section: Igc and Electrochemical Testsmentioning

confidence: 99%

Effect of Retrogression with Different Cooling Ways on the Microstructure and Properties of T’/η’ Strengthened Al-Zn-Mg-Cu Alloys

Zhang,

Shen,

Han

et al. 2024

Materials

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Retrogression and re-aging (RRA) treatment has been proven to effectively overcome the trade-off between strength and corrosion resistance. Current research focuses on the heating rate, temperature, and holding time of retrogression treatment while ignoring the retrogression cooling ways. In this paper, the effects of RRA treatment with different retrogression cooling ways on the microstructure and properties of newly developed T’/η’ strengthened Al-Zn-Mg-Cu alloys were investigated by performing tests on mechanical properties, intergranular corrosion (IGC) resistance, and electrochemical corrosion behavior. The results show that the mechanical properties of samples subject to RRA treatment with water-quenching retrogression (ultimate tensile strength, yield strength, and elongation of 419.2 MPa, 370.2 MPa, and 15.9, respectively) are better than those of air-cooled and furnace-cooled samples. The corrosion resistance of water-quenching (IGC depth of 162.2 μm, corrosion current density of 0.833 × 10−5 A/cm2) and furnace-cooled samples (IGC depth of 123.7 μm, corrosion current density of 0.712 × 10−5 A/cm2) is better than that of air-cooled samples. Microstructure characterization reveals that the effect of the retrogression cooling rate on mechanical properties is related to the size of T’/η’ precipitates with grains as well as the proportion of T’ and η’, while the difference in corrosion resistance depends on the continuity of grain boundary precipitates (GBPs). With mechanical properties, corrosion resistance, and time cost taken into consideration, it is appropriate to select water quenching for retrogression. These findings offer valuable insights for further design to achieve superior performance in various applications.

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Section: Igc and Electrochemical Testsmentioning

confidence: 99%

Effect of Retrogression with Different Cooling Ways on the Microstructure and Properties of T’/η’ Strengthened Al-Zn-Mg-Cu Alloys

Zhang,

Shen,

Han

et al. 2024

Materials

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Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi₂ and WSi₂ Particulates

Mertdinç‐Ülküseven,

Ovalı‐Döndaş,

Süzer

et al. 2024

Adv Eng Mater

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Herein, investigations on the microstructural, physical, and mechanical properties of molybdenum disilicide (MoSi2)‐ and tungsten disilicide (WSi2)‐reinforced aluminum (Al)–copper (Cu) matrix composites are reported. Powder metallurgy methods such as mechanochemical synthesis (MCS), mechanical alloying (MA), cold pressing, and pressureless sintering are combined to produce composites. First of all, MoSi2 and WSi2 nanoparticles are synthesized by MCS and selective acid leaching, yielding reinforcement materials for Al–Cu matrix. Powder blends consisting of 95 wt% Al and 5 wt% Cu are mixed with metal disilicides at different weight percentages (1, 2, and 5 wt%). MA for 4 h is conducted on these overall blends using a high‐energy ball mill. Microstructural and thermal properties of the as‐blended and mechanically alloyed powders are determined, and then they are compacted under 450 MPa and sintered at 550 °C for 2 h. Mechanical characterization of the composites reveals an increase in hardness and wear resistance with an increasing amount of reinforcement content. Among bulk samples, 5 wt% WSi2‐reinforced composites have the highest microhardness (165 ± 15 HV) and lowest wear rate (1.69 × 106 μm3 Nm−1) values. However, under the compression forces, the highest toughness and strength are obtained from 2 wt%‐reinforced composites.

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Simultaneously increasing the mechanical properties and corrosion resistance of B4C/Al composites via forming “TiO2–Al” interfacial layer

Han,

Jiang,

Han

et al. 2024

Ceramics International

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Revealing corrosion behavior of B4C/pure Al composite at different interfaces between B4C particles and Al matrix in NaCl electrolyte

Cited by 7 publications

References 68 publications

Effect of Retrogression with Different Cooling Ways on the Microstructure and Properties of T’/η’ Strengthened Al-Zn-Mg-Cu Alloys

Effect of Retrogression with Different Cooling Ways on the Microstructure and Properties of T’/η’ Strengthened Al-Zn-Mg-Cu Alloys

Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi₂ and WSi₂ Particulates

Simultaneously increasing the mechanical properties and corrosion resistance of B4C/Al composites via forming “TiO2–Al” interfacial layer

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Revealing corrosion behavior of B4C/pure Al composite at different interfaces between B4C particles and Al matrix in NaCl electrolyte

Cited by 7 publications

References 68 publications

Effect of Retrogression with Different Cooling Ways on the Microstructure and Properties of T’/η’ Strengthened Al-Zn-Mg-Cu Alloys

Effect of Retrogression with Different Cooling Ways on the Microstructure and Properties of T’/η’ Strengthened Al-Zn-Mg-Cu Alloys

Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi2 and WSi2 Particulates

Simultaneously increasing the mechanical properties and corrosion resistance of B4C/Al composites via forming “TiO2–Al” interfacial layer

Contact Info

Product

Resources

About

Powder Metallurgical Processing of Al–5 wt% Cu Matrix Composites Reinforced with MoSi₂ and WSi₂ Particulates