Effect of Sn on mechanical hardness of as-cast Ti-Nb-Sn alloys

Edy Priyanto Utomo, Ika Kartika, Anawati

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Titanium (Ti) alloys have been used in several industrial applications owing to their unique mechanical properties and superior corrosion resistance. The β type alloys are one of the most functional classes of Ti alloys in relation to the processing, microstructure and mechanical properties. The composition of Ti alloys is influenced by the fabrication method and alloying composition. In this work, the effect of alloying element Sn on the mechanical hardness of as-cast metastable β type ternary alloys Ti-30Nb-xSn was studied. Sn was expected to stabilize the β phase. The Sn concentration in the alloys varied 2, 5, and 8 wt%. The alloys hardness was measured by Vickers Hardness test. The microstructure and chemical composition were investigated by scanning electron microscope (SEM) and x-ray diffractometer (XRD), respectively. The results indicated that the hardness was altered by the Sn content in the alloys. The β phase was stabilized at a concentration of alloying element Sn 5 wt%. Meanwhile, at both low and high Sn concentrations the α-phase coexisted with the β phase. As a consequence, the Ti-30Nb-5Sn exhibited the lowest hardness (455 HV) relative to the Ti-30Nb-2Sn (473 HV) and Ti-30Nb-8Sn (559 HV) alloys.

Original languageEnglish
Title of host publicationProceedings of the International Seminar on Metallurgy and Materials, ISMM 2017
Subtitle of host publicationMetallurgy and Advanced Material Technology for Sustainable Development
EditorsM. Yunan Hasbi, Daniel Panghihutan Malau, Dhyah Annur, M. Ikhlasul Amal, Satrio Herbirowo, Yulinda Lestari
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416697
DOIs
Publication statusPublished - 15 May 2018
Event1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017 - Jakarta, Indonesia
Duration: 24 Oct 201725 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1964
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Seminar on Metallurgy and Materials: Metallurgy and Advanced Material Technology for Sustainable Development, ISMM 2017
CountryIndonesia
CityJakarta
Period24/10/1725/10/17

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