We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Effect of Cryogenic Treatment on Residual Stress and Microstructure of 6061 Aluminum Alloy and Optimization of Parameters
Summary
This study investigated cryogenic treatment as a method to reduce residual stress in 6061 aluminum alloy after heat treatment. Researchers found that optimized cryogenic parameters could reduce residual stress by 64%, primarily through reduced dislocations and more uniform distribution of precipitate phases in the metal's microstructure.
Residual stress induced by solution treatment in 6061 aluminum alloy can lead to workpiece deformation, or even premature failure. The efficiency of traditional heat treatment for relieving residual stress is relatively low. Therefore, this study introduces a novel cryogenic treatment technique to reduce residual stress. The optimal cryogenic process parameters were achieved by orthogonal experiments: cryogenic temperature of 113 K, holding time of 24 h, 1 cryogenic cycle, and a cooling rate of 3 K·min-1, and the residual stress of aluminum alloy was measured by the blind hole method. The microstructural evolutions in 6061 aluminum alloy were tested by OM, SEM, and TEM. The results show that the introduction of cryogenic treatment can reduce residual stress in 6061 aluminum alloy by 64%, mainly due to the reduction of dislocations and the uniform distribution of β'' phase.
Sign in to start a discussion.
More Papers Like This
Residual stress relief mechanisms of 2219 Al–Cu alloy by thermal stress relief method
Researchers investigated thermal stress relief mechanisms in 2219 aluminum-copper alloy components, finding that controlled thermal cycling redistributes and reduces residual quenching stresses while preserving the mechanical properties needed for aerospace applications.
Microstructural and Mechanical Characterization of Ultra-Pure Aluminum for Low-Amplitude-Vibration Cryogenic Applications
Researchers characterized the mechanical and microstructural properties of three grades of ultra-high-purity aluminum across temperatures from room temperature down to -180°C, finding that microstructural features strongly govern elastic behavior and that these materials are suitable for vibration-damping thermal connections in cryogenic systems.
The Residual Stress Relief and Deformation Control of Al Alloy Thin-Walled Antenna Components by Ultrasonic Regulation
Researchers used ultrasonic critical refraction wave detection to measure residual stress distributions in aluminum alloy plates and showed that applying ultrasonic stress relief treatment at each machining stage progressively reduces deformation, enabling the production of large thin-walled antenna components with significantly improved flatness.
The Effects of Deep Cryogenic Treatment with Regard to the Mechanical Properties and Microstructural Evolution of Al-Mg Alloys with Different Grain Sizes
Deep cryogenic treatment (exposing materials to very low temperatures) was studied for its effects on microplastic mechanical properties, finding changes in brittleness and fragmentation tendency. Understanding how temperature extremes affect plastic degradation informs predictions of microplastic generation in cold environments.
Влияние структурного состояния на упругие и микропластические свойства алюминиевого сплава AД1
This Russian-language study examined how different processing methods affecting the crystal grain structure of aluminum alloy AD1 influence its elastic and 'microplastic' deformation properties. 'Microplastic' here refers to microscopic metal deformation — this is a materials engineering study unrelated to plastic particle pollution.