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Note: UTS = ultimate tensile strength; YS = yield strength.

Note: UTS = ultimate tensile strength; YS = yield strength.

The increase in strength was attributed to classic Hall-Petch strengthening as the dislocation density of the LENS material was approximately the same as that for annealed bar. It should be noted that the LENS material was tested in the as-deposited condition while the handbook values are for annealed bar. There is some question as to whether the LENS material is thermally stable, that is, if the LENS material were annealed, there might be a reduction in strength. Chemical analysis of the powder and the deposit were not reported for the LENS or the DLF material.

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