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Tolerances of joint gaps in Nd:YAG laser welded Ti-6Al-4V alloy with the addition of filler wire
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10.2351/1.3554266
/content/lia/journal/jla/23/1/10.2351/1.3554266
http://aip.metastore.ingenta.com/content/lia/journal/jla/23/1/10.2351/1.3554266

Figures

Image of FIG. 1.
FIG. 1.

Overview of weld cross sections at various gaps.

Image of FIG. 2.
FIG. 2.

Effect of gap on FZ and HAZ area and width.

Image of FIG. 3.
FIG. 3.

Effect of joint gap on underfill and reinforcement area and size.

Image of FIG. 4.
FIG. 4.

Porosity near HAZ/FZ interfaces.

Image of FIG. 5.
FIG. 5.

Porosity at centerline grain boundary.

Image of FIG. 6.
FIG. 6.

Porosity randomly distributed in the fusion zone.

Image of FIG. 7.
FIG. 7.

Solubility curve for hydrogen in titanium as a function of temperature at 1 atm external pressure (Ref. 19).

Image of FIG. 8.
FIG. 8.

Coalescence of porosity obtained at joint gaps of (a),(b) 0.1 and (c) 0.2 mm.

Image of FIG. 9.
FIG. 9.

Gas and shrinkage porosity.

Image of FIG. 10.
FIG. 10.

Effect of joint gap on porosity area and percentage.

Image of FIG. 11.
FIG. 11.

Typical microstructures.

Image of FIG. 12.
FIG. 12.

Vickers hardness in the weld with zero gap.

Image of FIG. 13.
FIG. 13.

Vickers hardness at a joint gap of 0.3 mm.

Image of FIG. 14.
FIG. 14.

Effect of joint gap on fusion zone hardness.

Image of FIG. 15.
FIG. 15.

Effect of joint gap on tensile properties.

Tables

Generic image for table
TABLE I.

Welding processing parameters used.a

Generic image for table
TABLE II.

Failure locations after tensile testing.

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/content/lia/journal/jla/23/1/10.2351/1.3554266
2011-02-23
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tolerances of joint gaps in Nd:YAG laser welded Ti-6Al-4V alloy with the addition of filler wire
http://aip.metastore.ingenta.com/content/lia/journal/jla/23/1/10.2351/1.3554266
10.2351/1.3554266
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