Effect of hydrogen content on superplastic forming/diffusion bonding of TC21 alloys

Wang, Xiaoli; Zhang, Yongqing; Hou, Hongliang; Wang, Yaoqi

doi:10.1016/j.jallcom.2010.04.219

Cited by 20 publications

(2 citation statements)

References 17 publications

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“…At 860 • C and 30 MPa for 10 min, the voids disappear completely [10]. The interfacial void evolution has been investigated in the bonding process of steels [11], aluminum alloys [12], magnesium alloys [13] and titanium alloys [14]. In addition, multiform mathematic models have been established to predict the void shrinking process based on the mechanisms of diffusion and plastic flow [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Interfacial Microstructure Characteristics and Mechanical Properties of a Press Bonded Ti–5Al–2Sn–2Zr–4Mo–4Cr Alloy

2021

Crystals

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The microstructure evolution characteristics and the shear strength of bond and base alloys were investigated during the press bonding of the Ti–5Al–2Sn–2Zr–4Mo–4Cr alloy. The quantitative detection of the interfacial void shows that the interfacial voids shrunk gradually with time and a bond free of voids could be obtained at the time above 10 min. The microstructure of the base alloy shows that the primary α phase tends to be equiaxed because of the increase in plastic deformation and the variation in the volume fraction and grain size of the primary α phase that are complicated with time. The grain boundary misorientation characteristics in bond and base alloys are not consistent. However, they tend to be comparable over time. The shear strength of bond and base alloys at different times was explained and compared. The compared results indicate that the enhanced strength of the bond is mainly due to the increase in the bonded area. However, the strength of the bond decreases slightly because of the slight coarsening of the grain size and the decrease in the volume fraction of the primary α phase at the time more than 20 min. The shear strength of the bond and base alloys tends to be highest and close at 10 min.

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Section: Introductionmentioning

confidence: 99%

Interfacial Microstructure Characteristics and Mechanical Properties of a Press Bonded Ti–5Al–2Sn–2Zr–4Mo–4Cr Alloy

2021

Crystals

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“…The maximum bonding ratio, i.e. 96.28 %, can be obtained at 1,050°C, and 0.9 yield strength for 24 h. Wang et al [8] discussed the effect of hydrogen content and temperature on the bonding ratio in the DB of TC21 alloy. The bonding ratio increases with an increase in hydrogen content and reaches a maximum value as the hydrogen content is 0.5 wt%.…”

Section: Introductionmentioning

confidence: 99%

Significance and interaction of bonding parameters with bonding ratio in press bonding of TC4 alloy

et al. 2014

Rare Met.

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The variation of bonding ratio in the press bonding of TC4 alloy at temperatures from 850 to 900°C, pressures from 10 to 30 MPa, and time from 5 to 15 min was investigated. The bonding ratio increases with the increase of temperature, time and pressure. The maximum bonding ratio, i.e. 98 %, can be obtained at 900°C, 30 MPa and 15 min. The significance and interaction of bonding parameters with the bonding ratio were investigated. The results demonstrate that the effect of pressure on the bonding ratio is the most effective and the effect of temperature is secondary, while the effect of time is not very powerful. The interaction of bonding parameter on the bonding ratio exists but that is distinguishing in different bonding parameter ranges. It is concluded that increasing pressure can be considered as the primary method to increase the bonding ratio.

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The color changes and tensile properties of oxidized Ti–6A1–2Mo–1.5Cr–2Zr–2Sn–2Nb alloy

Jia

Zeng

Yao-wu

et al. 2015

Journal of Alloys and Compounds

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Effect of hydrogen content on superplastic forming/diffusion bonding of TC21 alloys

Cited by 20 publications

References 17 publications

Interfacial Microstructure Characteristics and Mechanical Properties of a Press Bonded Ti–5Al–2Sn–2Zr–4Mo–4Cr Alloy

Interfacial Microstructure Characteristics and Mechanical Properties of a Press Bonded Ti–5Al–2Sn–2Zr–4Mo–4Cr Alloy

Significance and interaction of bonding parameters with bonding ratio in press bonding of TC4 alloy

The color changes and tensile properties of oxidized Ti–6A1–2Mo–1.5Cr–2Zr–2Sn–2Nb alloy

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