Microstructure characterization and mechanical properties of linear friction welded Ti-6Al-4V alloy

Wen Ya Li; Tiejun Ma; Yong Zhang; Quanzhou Xu; Jinglong Li; Siqian Yang; Hanlin Liao

doi:10.1002/adem.200700034

Microstructure characterization and mechanical properties of linear friction welded Ti-6Al-4V alloy

Wen Ya Li, Tiejun Ma, Yong Zhang, Quanzhou Xu, Jinglong Li, Siqian Yang, Hanlin Liao

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

Abstract

Microstructure characterization and mechanical properties of linear friction welding (LFW) Ti-6Al-4V alloy welded under an appropriate condition have been reported. Typical microstructure of the Ti-6Al-4V consisted of a bimodal structure in the form of elongated grains and intergranular mixture of lamellar grains. It was observed that a sound weld could be obtained under specific processing parameters. An obvious flash consisting of many small ridge was observed as a result of the oscillating extrusion process during LFW. A very thin weld of around 65-115 μm was formed with a superfine bimodal microstructure and much limited thermomechanically affected zone (TMAZ), which is associated with the quick heating and cooling processes involved in LFW. It was also observed that the tensile properties of LFW processes Ti-6Al-4V alloy were comparable to or higher than those of the parent Ti-6Al-4V alloy because the fracture occurred in the parent material.

Original language	English
Pages (from-to)	89-92
Number of pages	4
Journal	Advanced Engineering Materials
Volume	10
Issue number	1-2
DOIs	https://doi.org/10.1002/adem.200700034
State	Published - Feb 2008

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title = "Microstructure characterization and mechanical properties of linear friction welded Ti-6Al-4V alloy",

abstract = "Microstructure characterization and mechanical properties of linear friction welding (LFW) Ti-6Al-4V alloy welded under an appropriate condition have been reported. Typical microstructure of the Ti-6Al-4V consisted of a bimodal structure in the form of elongated grains and intergranular mixture of lamellar grains. It was observed that a sound weld could be obtained under specific processing parameters. An obvious flash consisting of many small ridge was observed as a result of the oscillating extrusion process during LFW. A very thin weld of around 65-115 μm was formed with a superfine bimodal microstructure and much limited thermomechanically affected zone (TMAZ), which is associated with the quick heating and cooling processes involved in LFW. It was also observed that the tensile properties of LFW processes Ti-6Al-4V alloy were comparable to or higher than those of the parent Ti-6Al-4V alloy because the fracture occurred in the parent material.",

author = "Li, {Wen Ya} and Tiejun Ma and Yong Zhang and Quanzhou Xu and Jinglong Li and Siqian Yang and Hanlin Liao",

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T1 - Microstructure characterization and mechanical properties of linear friction welded Ti-6Al-4V alloy

AU - Li, Wen Ya

AU - Ma, Tiejun

AU - Zhang, Yong

AU - Xu, Quanzhou

AU - Li, Jinglong

AU - Yang, Siqian

AU - Liao, Hanlin

PY - 2008/2

Y1 - 2008/2

N2 - Microstructure characterization and mechanical properties of linear friction welding (LFW) Ti-6Al-4V alloy welded under an appropriate condition have been reported. Typical microstructure of the Ti-6Al-4V consisted of a bimodal structure in the form of elongated grains and intergranular mixture of lamellar grains. It was observed that a sound weld could be obtained under specific processing parameters. An obvious flash consisting of many small ridge was observed as a result of the oscillating extrusion process during LFW. A very thin weld of around 65-115 μm was formed with a superfine bimodal microstructure and much limited thermomechanically affected zone (TMAZ), which is associated with the quick heating and cooling processes involved in LFW. It was also observed that the tensile properties of LFW processes Ti-6Al-4V alloy were comparable to or higher than those of the parent Ti-6Al-4V alloy because the fracture occurred in the parent material.

AB - Microstructure characterization and mechanical properties of linear friction welding (LFW) Ti-6Al-4V alloy welded under an appropriate condition have been reported. Typical microstructure of the Ti-6Al-4V consisted of a bimodal structure in the form of elongated grains and intergranular mixture of lamellar grains. It was observed that a sound weld could be obtained under specific processing parameters. An obvious flash consisting of many small ridge was observed as a result of the oscillating extrusion process during LFW. A very thin weld of around 65-115 μm was formed with a superfine bimodal microstructure and much limited thermomechanically affected zone (TMAZ), which is associated with the quick heating and cooling processes involved in LFW. It was also observed that the tensile properties of LFW processes Ti-6Al-4V alloy were comparable to or higher than those of the parent Ti-6Al-4V alloy because the fracture occurred in the parent material.

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Microstructure characterization and mechanical properties of linear friction welded Ti-6Al-4V alloy

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