欧梅桂,夏麒帆,宋洪超,梁益龙.不同冷速对TC4钛合金组织和性能的影响[J].稀有金属材料与工程,2019,48(2):638~643.[Ou Meigui,Xia Qifan,Song Hongchao,Liang Yilong.The effect of cooling rate on microstructure and mechanical properties of TC4 titanium alloy[J].Rare Metal Materials and Engineering,2019,48(2):638~643.]
不同冷速对TC4钛合金组织和性能的影响
投稿时间:2017-06-28  修订日期:2017-08-23
中文关键词:  TC4钛合金  不同冷速  组织尺寸  力学性能  Hall-Petch关系
基金项目:贵州省科技厅重大专项(黔科合重大专项字(2014)6013);贵州省科技厅工业攻关项目(黔科合GZ字(2014)3018号)
中文摘要:
      对TC4钛合金进行了不同冷速的热处理,得到了不同层次(晶粒、丛域、片层)的显微组织,建立了以片层组织尺寸为基础的Hall-Petch关系。结果表明:随着冷却速率的增加,片层细化,对应的屈服强度和抗拉强度逐渐升高,塑性逐渐降低。片层尺寸和力学性能之间较好地吻合Hall-Petch关系,是影响力学性能的主要特征参量。
The effect of cooling rate on microstructure and mechanical properties of TC4 titanium alloy
英文关键词:TC4 titaniumalloy  different cooling rates  microstructure size  mechanical properties  Hall-Petch relation
英文摘要:
      The different level microstructure (grains,colonies and lamellas)were obtained when TC4 titanium alloy was heat-treated at different cooling rates, and the Hall-Petch relation was established based on different level microstructure. With the increase of cooling rate, the lamellas were refined; the yield strength and tensile strength increased, whereas the ductility gradually decreased.The relationship between lamella size and mechanical properties was in line with Hall-Petch relation, therefore the lamella was the main characteristic parameter affecting the mechanical propertiesand.
作者单位E-mail
欧梅桂 贵州大学材料与冶金学院 rose8239@163.com 
夏麒帆 贵州大学材料与冶金学院 599079789@qq.com 
宋洪超 贵州大学材料与冶金学院  
梁益龙 贵州大学材料与冶金学院  
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