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燒結(jié)溫度對多孔Inconel625合金性能的影響
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作者單位:

西北有色金屬研究院 金屬多孔材料國家重點(diǎn)實(shí)驗(yàn)室

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通訊作者:

中圖分類號:

TF125

基金項(xiàng)目:

國家自然科學(xué)基金重點(diǎn)國際(地區(qū))合作與交流項(xiàng)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有著優(yōu)異的耐蝕性與高溫力學(xué)性能,被廣泛用于航空航天、石油化工、核工業(yè)等領(lǐng)域。多孔材料有著輕質(zhì)化與優(yōu)良的透過性能常被用于過濾材料。本文旨在制備出耐蝕性良好的過濾材料,利用粉末冶金技術(shù)制備出兼具Inconel625合金本身特性與功能特性的多孔Inconel625合金。實(shí)驗(yàn)采用100~200μm粒度的合金粉末,通過模壓-氣氛燒結(jié)的工藝制備了多孔Inconel625合金,并對不同燒結(jié)溫度下的合金做了形貌表征與性能評價(jià)。結(jié)果表明,在1240℃燒結(jié)溫度下合金燒結(jié)頸發(fā)育良好,孔隙球化率高,此時(shí)透氣度滿足服役性能需求,可作為高溫氣液過濾材料使用,該溫度下合金剪切性能達(dá)到最優(yōu),最大剪切力為51.0KN,也為后續(xù)進(jìn)一步的研究提供了參考依據(jù)。

    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,荊鵬,李廣忠.燒結(jié)溫度對多孔Inconel625合金性能的影響[J].稀有金屬材料與工程,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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  • 收稿日期:2020-10-20
  • 最后修改日期:2020-11-27
  • 錄用日期:2020-12-23
  • 在線發(fā)布日期: 2021-10-28
  • 出版日期: 2021-10-25