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烧结温度对多孔Inconel625合金性能的影响
作者:
作者单位:

西北有色金属研究院 金属多孔材料国家重点实验室

作者简介:

通讯作者:

中图分类号:

TF125

基金项目:

国家自然科学基金重点国际(地区)合作与交流项目(52020105011)


Effect of sintering temperature on properties of porous Inconel 625 alloy
Author:
Affiliation:

1.State Key Laboratory of Porous Metal Materials,Northwest Institute for Nonferrous Metal Research,Xi’an 710016;2.China

Fund Project:

The National Natural Science Foundation of China

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    摘要:

    Inconel625有着优异的耐蚀性与高温力学性能,被广泛用于航空航天、石油化工、核工业等领域。多孔材料有着轻质化与优良的透过性能常被用于过滤材料。本文旨在制备出耐蚀性良好的过滤材料,利用粉末冶金技术制备出兼具Inconel625合金本身特性与功能特性的多孔Inconel625合金。实验采用100~200μm粒度的合金粉末,通过模压-气氛烧结的工艺制备了多孔Inconel625合金,并对不同烧结温度下的合金做了形貌表征与性能评价。结果表明,在1240℃烧结温度下合金烧结颈发育良好,孔隙球化率高,此时透气度满足服役性能需求,可作为高温气液过滤材料使用,该温度下合金剪切性能达到最优,最大剪切力为51.0KN,也为后续进一步的研究提供了参考依据。

    Abstract:

    Inconel625 has excellent corrosion resistance and high temperature mechanical properties, which is widely used in aerospace, petrochemical, nuclear industry etc. Porous materials are widely used as filter materials because of its light weight and excellent permeability. The purpose of this paper is to prepare a filter material with good corrosion resistance. Porous Inconel625 alloy with its own characteristics and functionality was prepared by molding-atmosphere sintering process with 100~200 μm alloy powder. The morphology and properties of the alloy are characterized and evaluated at different sintering temperatures. The results show that the sintered neck is well developed and the degree of pore spheroidization is high at 1240 ℃. At this time, the air permeability can satisfy the requirements of service performance, and can be used as high temperature gas-liquid filter material. At 1240 ℃ sintering temperature, the shear performance of the alloy reaches the best, and the maximum shear force is 51.0 kN, which also provides a reference for further research.

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引用本文

王昊,荆鹏,李广忠.烧结温度对多孔Inconel625合金性能的影响[J].稀有金属材料与工程,2021,50(10):3693~3697.[Wang Hao, Jing Peng, Li Guangzhong. Effect of sintering temperature on properties of porous Inconel 625 alloy[J]. Rare Metal Materials and Engineering,2021,50(10):3693~3697.]
DOI:10.12442/j. issn.1002-185X.20200804

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历史
  • 收稿日期:2020-10-20
  • 最后修改日期:2020-11-27
  • 录用日期:2020-12-23
  • 在线发布日期: 2021-10-28
  • 出版日期: 2021-10-25