Review of the Mechanical Properties of High-Strength Alloys at Cryogenic Temperatures

To advance the understanding of metallic materials for structural components at cryogenic temperatures, a review previous studies on mechanical properties austenitic stainless steels, titanium alloys, aluminum and copper alloys is presented herein. In particular, evaluation strength toughness balance intends to clarify key differences between these facilitate better alloy design potentially bolster further development. Several points tests are also introduced. Temperature control, testing tools, test conditions should be properly calibrated avoid experimental errors. Furthermore, substantial progress subsurface crack initiation in high-cycle fatigue temperatures presented, which mechanism generation highlighted as consideration microstructure high-strength alloys.