Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloy
The cooling rate after high-temperature heat treatment has a significant effect on the microstructure and properties of Ti65 alloy. The effect of cooling medium temperature on the cooling curve and microstructure of Ti65 alloy after high-temperature heat treatment has been systematically studied. Th...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2025-01-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2024.000315 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832592337134419968 |
|---|---|
| author | DONG Xiaolin LI Wenyuan TAN Haibing LIU Jianrong LIU Qiaomu CHEN Yulong WANG Lei WANG Qingjiang |
| author_facet | DONG Xiaolin LI Wenyuan TAN Haibing LIU Jianrong LIU Qiaomu CHEN Yulong WANG Lei WANG Qingjiang |
| author_sort | DONG Xiaolin |
| collection | DOAJ |
| description | The cooling rate after high-temperature heat treatment has a significant effect on the microstructure and properties of Ti65 alloy. The effect of cooling medium temperature on the cooling curve and microstructure of Ti65 alloy after high-temperature heat treatment has been systematically studied. The results show that the temperature of the oil medium has an opposite effect on the cooling curve to that of the air medium. The maximum cooling rate of oil is 73.2 ℃/s at room temperature， while the maximum cooling rate of air cooling is only 11.2 ℃/s. As the temperature increases， the cooling rate curve for oil quenching condition shifts to the right， and the maximum cooling rate and the minimum film boiling temperature increase. When the oil temperature is in the range of room temperature to 60 ℃， the cooling rate curve for oil quenching condition includes vapor， boiling， and convection three stages. When the oil temperature rises to 80 ℃， the vapor stage disappears. In addition， the microstructure shows a transition trend from α+β dual-phase microstructure to martensitic microstructure with the increase in oil temperature. Conversely， with the temperature increases， the cooling rate curve for air cooling condition shifts to the left， the maximum cooling rate decreases， and the temperature at the maximum cooling rate in the boiling stage gradually increases. Compared with oil quenching at different temperatures， the microstructure of air cooling under different temperatures shows typical bimodal microstructure with no obvious difference. The effect of oil temperature on the cooling curve is mainly attributed to changes in oil viscosity and fluidity， while the effect of air temperature on the cooling curve is mainly attributed to multiple complex factors such as air density and temperature gradient. |
| format | Article |
| id | doaj-art-265de1f4b9a949e583f26ae0596744a4 |
| institution | Kabale University |
| issn | 1001-4381 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj-art-265de1f4b9a949e583f26ae0596744a42025-01-21T09:44:41ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812025-01-0153116517410.11868/j.issn.1001-4381.2024.0003151001-4381（2025）01-0165-10Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloyDONG Xiaolin0LI Wenyuan1TAN Haibing2LIU Jianrong3LIU Qiaomu4CHEN Yulong5WANG Lei6WANG Qingjiang7School of Materials Science and Engineering，University of Science and Technology of China， Shenyang 110016，ChinaShi-Changxu Innovation Center for Advanced Materials， Institute of Metal Research，Chinese Academy of Sciences，Shenyang110016， ChinaAECC Sichuan Gas Turbine Establishment， Chengdu 610500， ChinaShi-Changxu Innovation Center for Advanced Materials， Institute of Metal Research，Chinese Academy of Sciences，Shenyang110016， ChinaAECC Sichuan Gas Turbine Establishment， Chengdu 610500， ChinaAECC Sichuan Gas Turbine Establishment， Chengdu 610500， ChinaShi-Changxu Innovation Center for Advanced Materials， Institute of Metal Research，Chinese Academy of Sciences，Shenyang110016， ChinaShi-Changxu Innovation Center for Advanced Materials， Institute of Metal Research，Chinese Academy of Sciences，Shenyang110016， ChinaThe cooling rate after high-temperature heat treatment has a significant effect on the microstructure and properties of Ti65 alloy. The effect of cooling medium temperature on the cooling curve and microstructure of Ti65 alloy after high-temperature heat treatment has been systematically studied. The results show that the temperature of the oil medium has an opposite effect on the cooling curve to that of the air medium. The maximum cooling rate of oil is 73.2 ℃/s at room temperature， while the maximum cooling rate of air cooling is only 11.2 ℃/s. As the temperature increases， the cooling rate curve for oil quenching condition shifts to the right， and the maximum cooling rate and the minimum film boiling temperature increase. When the oil temperature is in the range of room temperature to 60 ℃， the cooling rate curve for oil quenching condition includes vapor， boiling， and convection three stages. When the oil temperature rises to 80 ℃， the vapor stage disappears. In addition， the microstructure shows a transition trend from α+β dual-phase microstructure to martensitic microstructure with the increase in oil temperature. Conversely， with the temperature increases， the cooling rate curve for air cooling condition shifts to the left， the maximum cooling rate decreases， and the temperature at the maximum cooling rate in the boiling stage gradually increases. Compared with oil quenching at different temperatures， the microstructure of air cooling under different temperatures shows typical bimodal microstructure with no obvious difference. The effect of oil temperature on the cooling curve is mainly attributed to changes in oil viscosity and fluidity， while the effect of air temperature on the cooling curve is mainly attributed to multiple complex factors such as air density and temperature gradient.https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2024.000315ti65 titanium alloymedium temperaturecooling curvemicrostructureminimum film boiling temperature |
| spellingShingle | DONG Xiaolin LI Wenyuan TAN Haibing LIU Jianrong LIU Qiaomu CHEN Yulong WANG Lei WANG Qingjiang Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloy Cailiao gongcheng ti65 titanium alloy medium temperature cooling curve microstructure minimum film boiling temperature |
| title | Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloy |
| title_full | Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloy |
| title_fullStr | Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloy |
| title_full_unstemmed | Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloy |
| title_short | Effect of cooling medium temperature on cooling curve and microstructure of Ti65 alloy |
| title_sort | effect of cooling medium temperature on cooling curve and microstructure of ti65 alloy |
| topic | ti65 titanium alloy medium temperature cooling curve microstructure minimum film boiling temperature |
| url | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2024.000315 |
| work_keys_str_mv | AT dongxiaolin effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy AT liwenyuan effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy AT tanhaibing effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy AT liujianrong effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy AT liuqiaomu effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy AT chenyulong effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy AT wanglei effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy AT wangqingjiang effectofcoolingmediumtemperatureoncoolingcurveandmicrostructureofti65alloy |