Quick Search:       Advanced Search
韩墨流,徐平伟,万明攀,梁益龙,杜剑平,梁宇.TA19钛合金中半等轴组织特征与拉伸性能研究[J].稀有金属材料与工程(英文),2018,47(12):3768~3775.[Mo-liu Han,Ping-wei Xu,Ming-pan Wan,Yi-long Liang,Jiang-ping Du and Yu Liang.Study on the Semi-equiaxed Structure and Tensile Properties of TA19 Titanium Alloy[J].Rare Metal Materials and Engineering,2018,47(12):3768~3775.]
Study on the Semi-equiaxed Structure and Tensile Properties of TA19 Titanium Alloy
Download Pdf  View/Add Comment  Download reader
Received:March 08, 2018  Revised:March 26, 2018
DOI:
Key words: Semi-equiaxed structure  Element diffusion  Mechanical Property  Orientation relationship
Foundation item:国家自然科学基金(No. 51461007 and No. 51761003);贵州省自然科学基金(No. [2015] 3012, No. [2014] 2003 and No.[2014]6012)
Author NameAffiliation
Mo-liu Han,Ping-wei Xu,Ming-pan Wan,Yi-long Liang,Jiang-ping Du and Yu Liang  
Hits: 120
Download times: 0
Abstract:
      By heating up the Tβ temperature and then holding 25-90s, the semi- equiaxed structure, which is a transition structure between the equiaxed structure and the lamellar structure,is shaped. The influence of the change of heat holding time on the semi-equiaxed structure evolution law and mechanical properties is studied. Experimental results indicate that the formation of the semi-equiaxed structure is mainly because the element Mo into the β matrix diffused inhomogeneous into primary equiaxed α phase when specimens was kept above the Tβ temperature for a short time,And in the cooling process,the β transformain structure grow through the primary equiaxed α phase.With the prolongation of holding time,the semi-equiaxed structure are gradually replaced by lameller structure.When heated to 1015℃,hold 45s,the tensile strength is 1219MPa,the reduction of area is 29%,and the elongation is 14%,which has a better strength and plasticity.