Research Article
Effect of Shielding Gas on Microstructures and Mechanical Properties of TC4 Titanium Alloy Ultranarrow Gap Welded Joint by Laser Welding with Filler Wire
Figure 7
XRD patterns of weld zone (a) and SEM images of weld zone with different shielding gas: (b) Ar and (c) He.
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| (b) |
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