本文選題：ASPEX掃描電鏡　切入點(diǎn)：電解萃取　出處：《冶金分析》2017年08期 　論文類型：期刊論文

【摘要】：非金屬夾雜物對軸承鋼性能有較大危害,全面掌握鋼中夾雜物的信息對提高軸承鋼質(zhì)量至關(guān)重要。實(shí)驗(yàn)采用ASPEX掃描電鏡檢測和水溶液電解萃取相結(jié)合的方法檢測了超潔凈軸承鋼中夾雜物顆粒的尺寸、分布、類型、原始三維形貌等信息,并且對比了兩種檢測方法。結(jié)果表明,兩種方法都檢測出該超潔凈鋼中夾雜物類型包括硫化物、氧化物、硫化物和氧化物的復(fù)合型夾雜物以及鈦的化合物,其中大部分夾雜物是硫化物,其次是氧化物和硫化物的復(fù)合類夾雜物,顆粒尺寸多小于5μm。這兩種方法在檢測夾雜物類型和尺寸方面的結(jié)果是一致的,且均可靠。在大尺寸夾雜物檢測方面,兩種方法都檢測到大尺寸的CaO夾雜物,而電解萃取的方法進(jìn)一步檢測到約18μm的SiO_2·Al_2O_3復(fù)合氧化物夾雜,因此電解萃取法對于數(shù)量稀少的大尺寸夾雜物的檢測更為有效和可靠。
[Abstract]:Non-metallic inclusions are harmful to the performance of bearing steel. It is very important to master the information of inclusions in steel to improve the quality of bearing steel. The size, distribution and type of inclusions in ultra-clean bearing steel were detected by ASPEX scanning electron microscopy and electrolytic extraction in aqueous solution. The results show that the inclusion types in the ultraclean steel include sulfide, oxide, and so on, and the results show that the two methods can detect the inclusions in the ultra-clean steel, such as sulphide, oxide, and so on. Complex inclusions of sulphides and oxides, as well as titanium compounds, most of which are sulphides, followed by oxides and sulfides, The particle size is less than 5 渭 m. The results of the two methods are consistent and reliable in detecting the type and size of inclusions. In the detection of large size inclusions, both methods can detect large size CaO inclusions. However, about 18 渭 m of SiO_2 路Al_2O_3 complex oxide inclusions were further detected by electrolytic extraction, so the method of electrolytic extraction is more effective and reliable for the detection of large size inclusions.
【作者單位】： 北京科技大學(xué)冶金與生態(tài)工程學(xué)院;
【基金】：國家國際科技合作專項(xiàng)項(xiàng)目(No.2015DFG51950) 國家重點(diǎn)研發(fā)計(jì)劃汽車齒輪用鋼質(zhì)量穩(wěn)定性提升關(guān)鍵技術(shù)開發(fā)及應(yīng)用(No.2016YFB0300102)
【分類號(hào)】：TG142.15

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1 李正邦;超潔凈鋼和零非金屬夾雜鋼[J];特殊鋼;2004年04期

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本文編號(hào)：1641911