TY - JOUR
T1 - Alloy design of low-density Nb-Ti superalloy based on d-electrons theory
AU - Kong, Jintao
AU - Hu, Rui
AU - Kou, Hongchao
AU - Li, Jinshan
AU - Zheng, Xin
N1 - Publisher Copyright:
©, 2015, Rare Metals Materials and Engineering Press. All right reserved.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - The applicability of the d-electrons theory for designing Nb-base alloys was analyzed. The Md parameter was improved and verified. Furthermore, the low-density Nb-Ti alloy system was calculated and designed. The results show that solid solution W, Mo, Zr, Hf, and Ta are the most effective alloying elements to strengthen the Nb-base alloy. The strengthening effect by adding W element is better than that by the same amount of Mo element. With the increasing of Ti content in Nb-base alloy, the high-temperature strength of the alloy deceases. Considering the alloy density, high-temperature strength, oxidation resistance and other factors, an optimal composition was obtained: 65.95Nb-17Ti-3Al-4Cr-5V-2W-1.5Mo-1.5Hf-0.05C (wt%).
AB - The applicability of the d-electrons theory for designing Nb-base alloys was analyzed. The Md parameter was improved and verified. Furthermore, the low-density Nb-Ti alloy system was calculated and designed. The results show that solid solution W, Mo, Zr, Hf, and Ta are the most effective alloying elements to strengthen the Nb-base alloy. The strengthening effect by adding W element is better than that by the same amount of Mo element. With the increasing of Ti content in Nb-base alloy, the high-temperature strength of the alloy deceases. Considering the alloy density, high-temperature strength, oxidation resistance and other factors, an optimal composition was obtained: 65.95Nb-17Ti-3Al-4Cr-5V-2W-1.5Mo-1.5Hf-0.05C (wt%).
KW - Alloy design
KW - D-electrons theory
KW - Low-density Nb-Ti superalloy
UR - http://www.scopus.com/inward/record.url?scp=84937559250&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:84937559250
SN - 1002-185X
VL - 44
SP - 1119
EP - 1123
JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
IS - 5
ER -