Study on the properties of titanium bearing weather-proof building steel

Li Zhi; Han Guang; Lu Xianghui; Sun Yingbing

doi:10.7513/j.issn.1004-7638.2021.02.011

Volume 42 Issue 2

Apr. 2021

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Li Zhi, Han Guang, Lu Xianghui, Sun Yingbing. Study on the properties of titanium bearing weather-proof building steel[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(2): 60-65. doi: 10.7513/j.issn.1004-7638.2021.02.011

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Li Zhi, Han Guang, Lu Xianghui, Sun Yingbing. Study on the properties of titanium bearing weather-proof building steel[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(2): 60-65. doi: 10.7513/j.issn.1004-7638.2021.02.011

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Study on the properties of titanium bearing weather-proof building steel

doi: 10.7513/j.issn.1004-7638.2021.02.011

1.
Hebei Construction Material Vocational and Technical College, Qinhuangdao 066000, Hebei, China
2.
Yanshan University, Qinhuangdao 066000, Hebei, China

Received Date: 2020-03-20
Publish Date: 2021-04-10

Abstract

Abstract

In this paper, the corrosion resistance and wear resistance of Q235NH building steel specimens with different Ti content were studied. The results show that with the increase of titanium content, the corrosion potential of the sample first moves forward and then moves negative, and the wear volume first decreases and then increases. Both of the corrosion resistance and wear resistance of the sample present a increase followed by decrease. With the Ti content increasing from 0 to 0.09%, the microstructure of the sample is gradually refined. When Ti content increases from 0.09% to 0.15%, the microstructure of the sample is not refined, but the internal nitride particles are coarsened. The corrosion potential of the sample positively shifts by 78 mV and the wear volume decreases by 7.2 × 10⁻³mm³, compared with that without Ti. Based on the improvement of corrosion resistance and wear resistance, the optimum content of Ti in Q235NH weather-proof building steel is at 0.09%.
- weather-proof building steel,
- Q235NH,
- titanium content,
- corrosion resistance,
- wear resistance

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References

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