Advanced search
Publication Cover
Science and Technology of Welding and Joining Volume 16, 2011 - Issue 6
Journal homepage
145
Views
10
CrossRef citations to date
0
Altmetric
Original Article

Martensite nucleation site and grain refinement in duplex titanium alloy weldment by active flux with nanoparticle addition

P-W HsuDepartment of Mechanical Engineering, National Taiwan Ocean University, Keelung20224, Taiwan
,
R-S ChenDepartment of Mechanical Engineering, National Taiwan Ocean University, Keelung20224, Taiwan
,
F-H KaoInstitute of Materials Science and Engineering, National Taiwan University, Taipei10617, Taiwan
,
S-H WangDepartment of Mechanical Engineering, National Taiwan Ocean University, Keelung20224, TaiwanCorrespondence[email protected]
,
J-R YangInstitute of Materials Science and Engineering, National Taiwan University, Taipei10617, Taiwan
,
S-Y TsaiDepartment of Mechanical Engineering, National Taiwan Ocean University, Keelung20224, Taiwan
&
J-G DuhDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu30013, Taiwan
 show all
Pages 514-521 | Received 15 Feb 2011, Accepted 30 Apr 2011, Published online: 12 Nov 2013
 
Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days

Abstract

The effects of activating flux containing nanoparticles on the welding microstructure and hardness distribution of titanium alloy were investigated. The fluxes, consisting of NaF with 1 wt-% of either nano-TiO2 or nanodiamond, effectively yielded refined grain size and deep weld penetration. The hardness of the weldment was close to that of the base metal for 99 wt-% NaF plus 1 wt-% diamond, leading to a desirable uniform mechanical property in the weld design. In the meantime, the transmission electron microscopy images illustrate that the nanoparticles promote β phase coarsening and martensitic α′ phase formation at the β veins.

The authors gratefully acknowledge the financial support received from the National Science Council of the ROC, Taiwan, under contract no. NSC 97-2221-E-019-006-MY3.

Log in via your institution

Access through your institution

Log in to Taylor & Francis Online

Restore content access

Restore content access for purchases made as guest
There are no offers available at the current time.

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.