期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 19, 期 4, 页码 879-882出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(08)60369-6
关键词
cold spraying; TiAl3-Al composite coating; orthorhombic Ti2AlNb alloy; high temperature oxidation
TiAl3-Al coating was deposited on orthorhombic Ti2AlNb alloy substrate by cold spraying with the mixture of pure Al and Ti as the feedstock powder at a fixed molar ratio of 3:1 when the spraying distance, gas temperature and gas pressure for the process were 10 mm, 250 degrees C and 1.8 MPa, respectively. The as-sprayed coating was then subjected to heat treatment at 630 degrees C in argon atmosphere for 5 h at a heating rate of 3 degrees C/min and an argon gas flow rate of 40 mL/min. The obtained TiAl3-Al composite coating is about 212 mu m with a density of 3.16 g/cm(3) and a porosity of 14.69% in general. The microhardness and bonding strength for the composite coating are HV525 and 27.12 MPa.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据