TY - JOUR
T1 - Microstructure, Thermal Insulation, and High-Temperature Mechanical Properties of Layered Porous High Nb-TiAl Composite Sheets
AU - Jin, Xuchen
AU - Ye, Peihao
AU - Fang, Wenbin
AU - Sun, Wei
AU - Suo, Zhuanxia
AU - Wei, Boxin
AU - Li, Xuewen
N1 - Funding Information:
The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (no. 51704088) and Young Innovative Talents Training Plan of Heilongjiang Province (no. UNPYSCT-2017084).
Publisher Copyright:
© 2021, The Minerals, Metals & Materials Society.
PY - 2021/12
Y1 - 2021/12
N2 - Porous materials can effectively improve the thermal insulation performance of materials. Therefore, this study used pure Ti foil, pure Al powder, and pure Nb powder as raw materials. Layered porous high Nb-TiAl alloys have been prepared by vacuum hot-pressing sintering and multi-step heat treatment (low-temperature heat treatment and high-temperature heat treatment). The materials are composed of α2-Ti3Al, γ-TiAl, and Al3Nb. Holes are formed in the Al3Nb layer. The thermal insulation and tensile properties are measured at high temperature. The results show that the thermal insulation performance of the layered porous high Nb-TiAl alloy sheet is better than that of the layered high Nb-TiAl alloy (non-porous) and the traditional TiAl alloy. In this work, the materials achieved a good mechanical property-insulation performance synergy.
AB - Porous materials can effectively improve the thermal insulation performance of materials. Therefore, this study used pure Ti foil, pure Al powder, and pure Nb powder as raw materials. Layered porous high Nb-TiAl alloys have been prepared by vacuum hot-pressing sintering and multi-step heat treatment (low-temperature heat treatment and high-temperature heat treatment). The materials are composed of α2-Ti3Al, γ-TiAl, and Al3Nb. Holes are formed in the Al3Nb layer. The thermal insulation and tensile properties are measured at high temperature. The results show that the thermal insulation performance of the layered porous high Nb-TiAl alloy sheet is better than that of the layered high Nb-TiAl alloy (non-porous) and the traditional TiAl alloy. In this work, the materials achieved a good mechanical property-insulation performance synergy.
UR - http://www.scopus.com/inward/record.url?scp=85118175791&partnerID=8YFLogxK
U2 - 10.1007/s11837-021-04981-8
DO - 10.1007/s11837-021-04981-8
M3 - Article
AN - SCOPUS:85118175791
SN - 1047-4838
VL - 73
SP - 3753
EP - 3760
JO - JOM
JF - JOM
IS - 12
ER -