WANG Hongzhi, YAO Suwei, ZHANG Weiguo. HEAT RESISTANCE AND HIGH-TEMPERATURE OXIDATION RESISTANCE OF Ni-W GRADIENT DEPOSIT WITH NANOSTRUCTURE[J]. CIESC Journal, 2003, (2): 237-240.
WANG Hongzhi, YAO Suwei, ZHANG Weiguo. HEAT RESISTANCE AND HIGH-TEMPERATURE OXIDATION RESISTANCE OF Ni-W GRADIENT DEPOSIT WITH NANOSTRUCTURE[J]. CIESC Journal, 2003, (2): 237-240.DOI:
This paper studied the heat resistance and high-temperature oxidation resistance of Ni-W gradient deposit with nanostructure. Experiments results indicated that the Ni-W gradient deposit still kept original structure after heat treatment at 400℃
and the hardness of the deposit was as high as Hv 1300
better than the hard Chromium deposit. XRD test shows that the structure of the Ni-W gradient deposit has changed from a displacement solid solution made up of solvent Ni and solute W to a polycrystal structure made up of Ni and W after heat treatment at 600℃. Also
the W content remained the gradient distribution in the deposit. Furthermore
the Ni-W gradient deposit had good high-temperature oxidation resistance
suitable for the high-temperature oxidation circumstances.