Figure 5. The dependence of micro-hardness from a distance border of a welded seam. 1. welding without heating, 2. welding with preliminary heating

From

The Preliminary Heating at Welding Copper and Steel

P. A. Gavrish

American Journal of Materials Engineering and Technology. 2013, 1(3), 46-48 doi:10.12691/materials-1-3-4