Quick Search:       Advanced Search
盛金文.热处理对新型高强钛合金组织与性能影响研究[J].稀有金属材料与工程(英文),2020,49(3):825~832.[shengjinwen.A study of heat treatment on microstructures and tensile properties of a new high strength titanium alloy[J].Rare Metal Materials and Engineering,2020,49(3):825~832.]
A study of heat treatment on microstructures and tensile properties of a new high strength titanium alloy
Download Pdf  View/Add Comment  Download reader
Received:November 08, 2018  Revised:December 27, 2018
DOI:
Key words: Ti–6Al–6Mo–4V  microstructures  mechanical properties  fracture surface
Foundation item:国家重点基础研究发展计划(973计划)
Author NameAffiliation
shengjinwen  
Hits: 63
Download times: 2
Abstract:
      In this paper, the microstructure and mechanical properties of a high strength titanium alloy (Ti–6Al–6Mo–4V) were firstly investigated. The relationship between microstructures and properties of the alloys were investigated after solution treatment at α/β and β regions and then aging at five different temperatures ranging from 460℃ to 620℃ for 6h. The results illustrate the alloys after α/β region solution treatment and aging show a more attractive combination of strength and elongation than β solution treatment and aging. After solution treatment at 850℃ (α/β region) and aging at 460℃, the alloy obtains the highest strength (1572MPa) with elongation (2.63%). When aging at 620℃, the alloy obtains the highest elongation (11.46%) but lower strength (1201MPa). After solution treatment at 825℃ plus aging at 540℃, this alloy reaches a great combination of strength (1328MPa) and elongation (7.58%).Meanwhile, due to the large β grains after β region solution treatment and fine secondary α forms during aging, it does not obtain an attractive strength after β region solution treatment plus aging.