Residual Stress Measurement and Classification, Metallic Structural Alloy Products and Finished Parts
The methods for residual stress assessment in this standard are applicable in the prediction and measurement of fabrication process induced residual stresses, joining process induced residual stresses, and engineered residual stresses. Application of the methods in this standard is limited to metallic structural alloy products and finished parts made from structural alloy products such as alloys of aluminum, titanium, and precipitation hardenable nickel alloys, and precipitation hardenable steel alloys.
Rationale: The purpose of this standard is to provide uniform methods for defining, quantifying and classifying the residual stress in metallic structural alloy products, finished parts, or assemblies. These stresses may exist within a single element or they may be the result of joining process or mechanical assembly. Such quantification and classification may be required when residual stresses within mill stock or preforms can impact further in-process distortion during machining or other processes, and when residual stresses within finished components can impact final mechanical properties, and performance, and durability.