HEAT RESISTANCE AND HIGH-TEMPERATURE OXIDATION RESISTANCE OF Ni-W GRADIENT DEPOSIT WITH NANOSTRUCTURE

WANG Hongzhi; YAO Suwei; ZHANG Weiguo

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HEAT RESISTANCE AND HIGH-TEMPERATURE OXIDATION RESISTANCE OF Ni-W GRADIENT DEPOSIT WITH NANOSTRUCTURE

更新时间：2025-12-10

- HEAT RESISTANCE AND HIGH-TEMPERATURE OXIDATION RESISTANCE OF Ni-W GRADIENT DEPOSIT WITH NANOSTRUCTURE
- CIESC Journal Issue 2, Pages: 237-240(2003)
- 作者机构：
  
  天津大学化工学院应用化学系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 February 2003，
  
  Published：25 February 2003
- 稿件说明：
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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：

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：

摘要

对Ni-W纳米结构梯度镀层进行热处理，结果表明：400 ℃热处理1 h后，镀层结构未发生改变，硬度高达Hv1300，优于硬Cr镀层；600 ℃热处理1 h后，镀层结构由原来的以Ni为溶剂、W为溶质的固溶体转变为存在单一相Ni和W的多晶结构.热处理并未改变Ni-W梯度镀层中W含量的梯度分布.Ni-W纳米结构梯度镀层具有优良的高温氧化性能，可用于高温氧化气氛中.

Abstract

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.

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