An aging method to improve the dimensional stability of tic-cr-mo steel matrix composites
A dimensional stability, tic-cr-mo technology, applied in the aging field of improving the dimensional stability of TiC-Cr-Mo steel matrix composites, can solve problems such as stress concentration, affecting material compactness, stable and reliable performance, and cracking
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Embodiment 1
[0016] First, place the TiC-Cr-Mo steel-based alloy sample in an ultrasonic device with distilled water as the ultrasonic medium for heating and ultrasonic vibration treatment, wherein the heating temperature is 80°C, the vibration time is 60min, the vibration frequency is 40kHz, and the power is 240W; Immediately after the heating and ultrasonic treatment, the TiC-Cr-Mo alloy sample was placed in an ultrasonic equipment with liquid nitrogen as the ultrasonic medium for ultrasonic vibration treatment, wherein the cooling temperature was -196°C, the vibration time was 120min, and the vibration frequency was 40kHz , the power is 240W; according to the above process cycle 6 times, the treated TiC-Cr-Mo alloy sample is obtained.
[0017] The residual stress on the surface of the alloy obtained in this embodiment is -9MPa, the hardness of the alloy is 1042HV, and the magnetic saturation intensity is 93emu / g. Measure the dimensional change rate of the obtained product after it is pla...
Embodiment 2
[0021] First, place the TiC-Cr-Mo steel-based alloy sample in an ultrasonic device with distilled water as the ultrasonic medium for heating and ultrasonic vibration treatment. The heating temperature is 100°C, the vibration time is 180min, the vibration frequency is 40kHz, and the power is 240W; Immediately after the heating and ultrasonic treatment, the TiC-Cr-Mo alloy sample was placed in an ultrasonic equipment with liquid nitrogen as the ultrasonic medium for ultrasonic vibration treatment, wherein the cooling temperature was -196°C, the vibration time was 240min, and the vibration frequency was 40kHz. The power is 240W; the above-mentioned process is cycled 4 times to obtain the treated TiC-Cr-Mo alloy sample.
[0022] The residual stress on the surface of the alloy obtained in this embodiment is 11MPa, the hardness of the alloy is 1098HV, and the magnetic saturation intensity is 97emu / g. Measure the dimensional change rate of the obtained product after being placed at ro...
Embodiment 3
[0024] First, place the TiC-Cr-Mo steel-based alloy sample in an ultrasonic device with distilled water as the ultrasonic medium for heating and ultrasonic vibration treatment. The heating temperature is 100°C, the vibration time is 240min, the vibration frequency is 40kHz, and the power is 240W; Immediately after the heating and ultrasonic treatment, the TiC-Cr-Mo alloy sample was placed in an ultrasonic equipment with liquid nitrogen as the ultrasonic medium for ultrasonic vibration treatment, wherein the cooling temperature was -196°C, the vibration time was 300min, and the vibration frequency was 40kHz , the power is 240W; according to the above process cycle 8 times, the processed TiC-Cr-Mo alloy sample is obtained.
[0025] The residual stress on the surface of the alloy obtained in this embodiment is 23MPa, the hardness of the alloy is 1134HV, and the magnetic saturation intensity is 112emu / g. Measure the dimensional change rate of the obtained product after being placed...
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Abstract
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