Corrosion fatigue testing of metals and alloys

Cyclic failure test studies on flat or notched specimens can provide data reflecting the nature of corrosion fatigue cracking, such as the behavior of the metal or alloy, and can be used to improve engineering design standards to prevent fatigue failure. The study of cyclic failure can be applied to a variety of product forms, including plates, rods, wires, sheets and tubes, and welded components.
The results of corrosion failure tests can be directly applied only if the application conditions and the test conditions, especially with regard to material, environmental and stress conditions, are identical. Because material/load/environment combinations are not necessarily directly comparable to service conditions, engineering judgment must be made for these situations.
Corrosion fatigue refers to the material destruction process of metals under the combined effects of alternating strain and corrosion, usually leading to rupture. Corrosion fatigue testing of metals and alloys can be determined. Zhongke Testing Reliability Experiment Center has the ability to test the corrosion resistance of various metals and alloys, and provides professional corrosion fatigue testing services for metals and alloys.

Metals: Common metals include gold, silver, copper, iron, manganese, zinc, etc., which can be divided into ferrous metals, non-ferrous metals, light metals, rare metals, heavy metals, precious metals, etc.
Alloy: It is classified as a certain alloy according to the name of the main metal with a large content in the alloy. It is generally divided into mixed alloys, solid solution alloys, intermetallic compound alloys, etc. Specific examples include solder, bismuth-cadmium alloy, brass composed of copper and zinc (β-brass, γ-brass and ε-brass), etc.

1. Under corrosive environmental conditions, the degree of decline in the fatigue strength of metals or alloys depends on the environment and test conditions.
2. For example, the apparent fatigue strength limit observed for steel in air will no longer be apparent in an aggressive environment. Interpretation of test results is therefore based on assumptions about the allowable life of the component. The

GB/T 20120.1-2006 Corrosion of metals and alloys Corrosion fatigue testing Part 1: Cyclic failure test
GB/T 20120.2-2006 Corrosion of metals and alloys Corrosion fatigue testing Part 2: Crack growth test on pre-cracked specimens
GB/T 15970.1-2018 Corrosion of metals and alloys Stress corrosion test Part 1: General test methods
ISO 11782-1: 1998 Corrosion of metals and alloys Corrosion fatigue testing Part 1: Cyclic failure test
KS D ISO 11782-1-2017 Corrosion of metals and alloys Corrosion fatigue testing Part 1: Cyclic failure test
DIN EN ISO 11782-1-2008 Corrosion of metals and alloys Corrosion fatigue testing Part 1: Cyclic failure test
LST EN ISO 11782-1-2008 Corrosion of metals and alloys Corrosion fatigue testing Part 1: Cyclic failure test
DS/EN ISO 11782-1-2008 Corrosion of metals and alloys Corrosion fatigue testing Part 1: Cyclic failure test
EN ISO 11782-1-2008 Corrosion of metals and alloys Corrosion fatigue testing Part 1: Cyclic failure test
BS EN ISO 11782-1-1998 Corrosion of metals and alloys Corrosion fatigue tests Part 1: Cyclic failure tests