摘要
系统分析了Ti6321合金棒材在不同退火制度下的显微组织及室温拉伸、冲击性能。结果表明,当采用单重退火制度时,随着退火温度的升高,初生α相含量呈现先减少后增多再减少的趋势,原始次生α相逐渐减少,强度呈先降低后升高再降低的趋势,冲击吸收能量先降低再升高;采用多重退火制度时,随着第一阶段退火温度的升高,初生α相含量减少,强度降低,冲击吸收能量升高;随着第二阶段退火温度的升高,次生α相片层宽度增加,强度降低,冲击吸收能量升高;采取960℃×80 min/WQ+920℃×80 min/AC+550℃×240 min/AC三重退火制度时,合金具有最佳的强韧性匹配。
Microstructure and room temperature tensile and impact properties of Ti6321 alloy bars under different annealing processes were systematically analyzed.The results show that when the single annealing process is adopted,with the increase of annealing temperature,the content of primaryαphase shows a trend of first decreasing and then increasing and finally decreasing,the content of original secondaryαphase gradually decreases,and the strength shows the trend of first decreasing and then rising,and the impact absorbed energy first decreases and then increases.When the multiple annealing process is adopted,with the increase of annealing temperature in the first stage,the content of the primaryαphase decreases,the strength decreases,but the impact absorbed energy increases.With the increase of annealing temperature in the second stage,the width of the secondaryαphase layer increases,the strength decreases,while the impact absorbed energy increases.When the triple annealing system of 960℃×80 min/WQ+920℃×80 min/AC+550℃×240 min/AC is adopted,the alloy has the best strength and toughness matching.
作者
康聪
焦振
穆博涛
任驰强
高文超
李维
贠鹏飞
欧阳文博
Kang Cong;Jiao Zhen;Mu Botao;Ren Chiqiang;Gao Wenchao;Li Wei;Yun Pengfei;Ouyang Wenbo(Western Titanium Technologies Co.,Ltd.,Xi'an Shaanxi 710201,China;National and Local Joint Engineering Research Center for Titanium Alloy Processing Technology,Xi'an Shaanxi 710201,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2023年第8期149-153,共5页
Heat Treatment of Metals
关键词
Ti6321合金
退火制度
显微组织
室温拉伸性能
冲击性能
Ti6321 alloy
annealing process
microstructure
room temperature tensile properties
impact property
