TY - JOUR
T1 - Deposition and oxidation behavior of Mo(Si,Al)2/MoB layered coatings on TZM alloy
AU - Zhang, Ping
AU - Guo, Xiping
AU - Zhang, Chunying
AU - Tao, Qing
AU - Shen, Chengjin
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/9/1
Y1 - 2017/9/1
N2 - A two-step pack cementation process including first boronizing and then co-depositing of Si-Al-Y with different Al contents (0, 5 and 10 wt%) in the packs was used to deposit oxidation-resistant coatings on TZM alloy. The as-formed coatings are MoSi2/MoB, Mo(Si,Al)2/MoB, and Mo(Si,Al)2/Mo-Al-B/MoB layered coatings respectively. Compared with the MoSi2/MoB coating, the improved oxidation-resistant performance is presented in the Mo(Si,Al)2/MoB and Mo(Si,Al)2/Mo-Al-B/MoB coatings upon oxidation at 1250 °C, which should be attributed to the sluggish inward diffusion of Si into substrate and forming dense scales composed of SiO2 and Al2O3. The microstructure change and oxidation behavior of these coatings are investigated.
AB - A two-step pack cementation process including first boronizing and then co-depositing of Si-Al-Y with different Al contents (0, 5 and 10 wt%) in the packs was used to deposit oxidation-resistant coatings on TZM alloy. The as-formed coatings are MoSi2/MoB, Mo(Si,Al)2/MoB, and Mo(Si,Al)2/Mo-Al-B/MoB layered coatings respectively. Compared with the MoSi2/MoB coating, the improved oxidation-resistant performance is presented in the Mo(Si,Al)2/MoB and Mo(Si,Al)2/Mo-Al-B/MoB coatings upon oxidation at 1250 °C, which should be attributed to the sluggish inward diffusion of Si into substrate and forming dense scales composed of SiO2 and Al2O3. The microstructure change and oxidation behavior of these coatings are investigated.
KW - Mo based alloy
KW - Mo(Si,Al)/MoB layered coatings
KW - Oxidation
KW - Two-step pack cementation
UR - http://www.scopus.com/inward/record.url?scp=85019066205&partnerID=8YFLogxK
U2 - 10.1016/j.ijrmhm.2017.04.008
DO - 10.1016/j.ijrmhm.2017.04.008
M3 - 文章
AN - SCOPUS:85019066205
SN - 0263-4368
VL - 67
SP - 32
EP - 39
JO - International Journal of Refractory Metals and Hard Materials
JF - International Journal of Refractory Metals and Hard Materials
ER -