Overview of Research and Development of High-Manganese Damping Steel with Integrated Structure and Function
Vibration and noise are considered as public hazards that can affect the daily life of peo-ple.The use of additional sound insulation devices or curing of components by design can reduce certain vibration and noise;however,these methods are greatly limited by weight,cost,and vibration-damping ef-fect.Damping materials primarily convert vibration energy into other forms of energy through internal fric-tion to reduce vibration and noise,which is the most direct and effective way to reduce vibration and noise from the material itself.As a new structurally and functionally integrated ferrous material,low-stacking-fault-energy and high-manganese transformation-induced plasticity steel has outstanding damping char-acteristics based on a large number of ε-martensite and stacking faults as damping sources.It also has unique comprehensive advantages in mechanical properties,cost,and scope of application,indicating its broad application potential.Based on previous research results,this paper primarily summarizes the re-search and development of high-manganese damping steel at home and abroad.First,the microstructural features of high-manganese damping steel are introduced,and the complex thermal/deformation-induced transformation behavior among austenite,ε-martensite,and α'-martensite is investigated.Second,the mechanical behavior,work-hardening mechanism,damping performance,and the mechanism of high-manganese damping steel are summarized and analyzed.The influence of several strengthening ef-fects on mechanical properties is compared,and the key factors affecting the damping properties of high-manganese damping steel are clarified.Finally,the problems in the research and development of high-manganese damping steel are highlighted,and future research is prospected.
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