Research of microstructure and mechanical behavior on duplex (α + β) Ti-4.8Al-2.5Mo-1.4V alloy

Pei Wen Peng, Keng Liang Ou, Chih Yeh Chao, Yung Ning Pan, Chau Hsiang Wang

研究成果: 雜誌貢獻文章同行評審

19 引文 斯高帕斯(Scopus)

摘要

The microstructure and mechanical behavior of the duplex Ti-4.8Al-2.5Mo-1.4V (Ti14) alloy were investigated by means of optical microscopy, electron microscopy, experimental model analysis, and hardness and tensile testing. During heat-treatment at between 600 and 1000 °C, the phase transformation sequence was found to be (α + β) → (α + β + α′) → (α′ + α″ + residual β). The (α′ + α″ + residual β) structure exhibited the maximum yield strength (σy = 920 MPa), hardness (HRC 36), and damping coefficient (188.3 × 10-4). However, the (α + β) structure achieved the greatest elongation (∼15%). It is believed that the lath-like α′ martensite not only increases the tensile strength, but also enhances the hardness of the Ti14 alloy. Moreover, it also plays a crucial role in increasing the damping capacity of the Ti14 alloy.
原文英語
頁(從 - 到)661-666
頁數6
期刊Journal of Alloys and Compounds
490
發行號1-2
DOIs
出版狀態已發佈 - 二月 4 2010

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

指紋 深入研究「Research of microstructure and mechanical behavior on duplex (α + β) Ti-4.8Al-2.5Mo-1.4V alloy」主題。共同形成了獨特的指紋。

引用此