Methods of evaluation welded seams durability for cold cracks formation (Part 1).
The cold crack (chipping off) is the most frequent defect of fusion zone during fusion, which is located in certain distance from the fusion surface. The temper...
Author: Ivan Perfilyev
Hot cracks formation in the weld joint.
Possibility of hot cracks formation in welded seam is determined by next factors: 1) Size and character of plastic deformations, formed in metal of welded se...
Pores in welded joint (part 1).
According to AWS A3.0 document the porosity is determined as “continuity transgression in the form of hollow space, formed by captured gas in consolidation proc...
Tensile tests (Part 5).
For each material, tested for tensile tests, this curve has constant slope. This slope is called elastic modulus. Steel elastic modulus (or Young modulus) under...
Welding cracks and their classification.
According to dimensions and influence on metal density are there two categories of cracks (local ruptures): microcracks (their dimensions are comparable to dime...