NDT Overview, DPT, MPI, Hardness Testing, Bend Test, Charpy, CTOD, LRUT, Macro/Micro Tests, Welding Defects, Porosity, Undercut, LOF, DFT, Coating Tests
Porosity is defined as “Cavity-type discontinuities formed by gas entrapment during solidification or in a
thermal spray deposit.” The porosity may be surface or subsurface, a single cavity, aligned, or clustered, and is represented by the following figures.
When weld defects form in a weld they can weaken the joint. In some cases, this results in complete failure of the weldment. In serious cases, there can be severe consequences to a failing weld. So, you need to understand the various common welding defects. But in addition, you must know how to prevent them from
In the world of materials science and engineering, corrosion is a persistent and costly problem. From the structural integrity of industrial components to the longevity of everyday consumer products, corrosion poses a significant threat. To combat this issue, rigorous testing methods have been developed to assess the corrosion resistance of materials. One such method is
IGC testing A262 Practice E refers to a standard test method used to evaluate the intergranular corrosion (IGC) resistance of stainless steel and high-alloy materials. This test method, described in Practice E of ASTM International standard A262, involves immersing specimens of the material in a solution of nitric acid and ferric nitrate.
To ensure the satisfactory performance of a component/structure, the component shall be tested with adequate testing procedure with the adequate testing method. Which in general specifies component can be used in the service requirement specified. Soundness to the purpose of component can be determined by either destructive or non-destructive testing of the component. But as
Mechanical Testing in ASME Section IX – A Complete Guide ASME Section IX · Welding Qualification Mechanical Testing in ASME Section IX A complete technical guide to specimen requirements, test procedures, and acceptance criteria for groove weld PQR qualification. This guide covers the essential mechanical testing procedures defined in ASME BPVC Section IX for qualifying