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WE43合金中第二相對(duì)腐蝕降解性能的影響
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作者單位:

1.東北大學(xué) 材料科學(xué)與工程學(xué)院，遼寧 沈陽 110819;2.西北有色金屬研究院，陜西 西安 710016;3.暨南大學(xué) 化學(xué)與材料學(xué)院，廣東 廣州 510632

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基金項(xiàng)目:

陜西省重點(diǎn)產(chǎn)業(yè)創(chuàng)新鏈（群）-工業(yè)領(lǐng)域項(xiàng)目（2020ZDLGY13-05）


Effect of Second Phase on Corrosion Behavior of WE43 Alloy
Author:
Affiliation:

1.College of Materials Science and Engineering, Northeastern University, Shenyang 110819, China;2.Northwest Institute for Nonferrous Metal Research, Xi 'an 710016, China;3.College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China

Fund Project:

National Natural Science Foundation of China (2020ZDLGY1)

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    摘要:

    采用顯微組織觀察、EDS分析、失重實(shí)驗(yàn)和電化學(xué)測(cè)試研究了固溶和固溶-時(shí)效WE43合金的腐蝕性能。結(jié)果表明，通過熱處理改變基體中第二相，可得到不同腐蝕性能，固溶-時(shí)效試樣經(jīng)0和6 h浸泡后的腐蝕速率高于固溶處理試樣的腐蝕速率，然而在浸泡24 h后腐蝕速率低于固溶處理試樣。鎂合金在腐蝕過程中，腐蝕速率先減小后增大。通過建立數(shù)學(xué)模型解釋第二相對(duì)腐蝕性能的影響，以及腐蝕速率隨時(shí)間改變的原因。

    Abstract:

    Microstructure analysis, EDS analysis, mass loss experiment and electrochemical test were used to detect the corrosion performance of WE43 alloy after solution and solution-aging treatment. The result shows that heat treatment changes the second phase in the matrix to obtain different corrosion properties. The corrosion rate of solution-aging samples immersed for 0 and 6 h is higher than that of solution samples, and lower than that of solution sample immersed for 24 h. It is also found that during the corrosion process of WE43 alloy, the corrosion rate decreases first and then increases. Mathematical model was used to explain the relationship between the second phase and corrosion performance, and the reason why the corrosion rate changes with time.

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引用本文

賀龍朝,荊磊,余森,于振濤.WE43合金中第二相對(duì)腐蝕降解性能的影響[J].稀有金屬材料與工程,2022,51(2):484~490.[He Longchao, Jing Lei, Yu Sen, Yu Zhentao. Effect of Second Phase on Corrosion Behavior of WE43 Alloy[J]. Rare Metal Materials and Engineering,2022,51(2):484~490.]
DOI：10.12442/j. issn.1002-185X.20200970

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  • 收稿日期:2020-12-16
  • 最后修改日期:2021-03-11
  • 錄用日期:2021-04-15
  • 在線發(fā)布日期: 2022-03-03
  • 出版日期: 2022-02-28