TY - JOUR
T1 - Microstructure and mechanical properties of powder metallurgy Ti-TiBw-xFe titanium matrix composites using Ti-TiBw composite powder
AU - Wang, Shaodi
AU - Li, Shufeng
AU - Liu, Lei
AU - Li, Shaolong
AU - Gao, Lina
AU - Liu, Huiying
AU - Zhang, Xin
AU - Li, Bo
AU - Chen, Biao
AU - Umeda, Junko
AU - Kondoh, Katsuyoshi
AU - Zhou, Shengyin
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2023/9
Y1 - 2023/9
N2 - Abstract: The development of discontinuous reinforced titanium matrix composites (DRTMCs) provides a new idea to further improving the comprehensive mechanical properties of titanium alloys, which is expected to further expand their application fields to meet the new requirements of modern industry for metallic materials. In this study, the effects of Fe content on the microstructure and mechanical properties of Ti-TiBw-xFe composites were studied by adding alloying element Fe to Ti-TiBw composite powders. It was found that the grain size of α-Ti matrix was significantly refined with increasing Fe content. When Fe content was increased from 3.0 to 6.0 wt.%, the grain size of α-Ti decreased from 3.50 to 2.58 μm, representing a 26% decrease. Furthermore, the tensile strength of Ti-TiBw-6.0Fe reached 1065 MPa, which is 105.2% remarkable higher than that of Ti-TiBw with the same conditions, with an elongation at 5.3%. It was shown that the addition of Fe significantly improves the mechanical properties of Ti-TiBw-xFe composites. Solution strengthening, fine grain strengthening and load-bearing strengthening play a major role in improving the mechanical properties of Ti-TiBw-xFe composites. Graphical Abstract: [Figure not available: see fulltext.].
AB - Abstract: The development of discontinuous reinforced titanium matrix composites (DRTMCs) provides a new idea to further improving the comprehensive mechanical properties of titanium alloys, which is expected to further expand their application fields to meet the new requirements of modern industry for metallic materials. In this study, the effects of Fe content on the microstructure and mechanical properties of Ti-TiBw-xFe composites were studied by adding alloying element Fe to Ti-TiBw composite powders. It was found that the grain size of α-Ti matrix was significantly refined with increasing Fe content. When Fe content was increased from 3.0 to 6.0 wt.%, the grain size of α-Ti decreased from 3.50 to 2.58 μm, representing a 26% decrease. Furthermore, the tensile strength of Ti-TiBw-6.0Fe reached 1065 MPa, which is 105.2% remarkable higher than that of Ti-TiBw with the same conditions, with an elongation at 5.3%. It was shown that the addition of Fe significantly improves the mechanical properties of Ti-TiBw-xFe composites. Solution strengthening, fine grain strengthening and load-bearing strengthening play a major role in improving the mechanical properties of Ti-TiBw-xFe composites. Graphical Abstract: [Figure not available: see fulltext.].
UR - http://www.scopus.com/inward/record.url?scp=85169798246&partnerID=8YFLogxK
U2 - 10.1007/s10853-023-08870-0
DO - 10.1007/s10853-023-08870-0
M3 - 文章
AN - SCOPUS:85169798246
SN - 0022-2461
VL - 58
SP - 13662
EP - 13677
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 34
ER -