進(jìn)口與國(guó)產(chǎn)軸承鋼夾雜物特征的對(duì)比研究
發(fā)布時(shí)間:2018-08-18 15:55
【摘要】:為研究進(jìn)口與國(guó)產(chǎn)高端軸承鋼的夾雜物特征差異,使用ASPEX-explorer和光學(xué)顯微鏡分別對(duì)一種進(jìn)口各向同性軸承鋼和一種國(guó)產(chǎn)高端軸承鋼的夾雜物尺寸、形態(tài)進(jìn)行了多尺度評(píng)價(jià)。并使用掃描電鏡對(duì)大尺寸夾雜物的元素分布進(jìn)行了研究,分析了夾雜物復(fù)合化模型。結(jié)果表明,與相同生產(chǎn)流程的國(guó)產(chǎn)高端軸承鋼相比,進(jìn)口各向同性軸承鋼夾雜物更加細(xì)小,形態(tài)橢球化,可降低各向異性;進(jìn)口鋼的夾雜物尺寸及形態(tài)控制均優(yōu)于國(guó)產(chǎn)鋼。進(jìn)口各向同性軸承鋼中大尺寸夾雜物以復(fù)合化形式出現(xiàn),復(fù)合方式是以Ca S顆粒包覆剛性?shī)A雜物,實(shí)現(xiàn)了夾雜物的低害化。
[Abstract]:In order to study the difference of inclusion characteristics between imported and domestic high-end bearing steels, the size and morphology of inclusions in an imported isotropic bearing steel and a domestic high-end bearing steel were evaluated by means of ASPEX-explorer and optical microscope. The results show that the inclusions of imported isotropic bearing steel are finer and the shape is ellipsoidal than that of domestic high-end bearing steel with the same production process, and the anisotropy can be reduced. Composite form appears, and the composite way is to coat rigid inclusions with Ca S particles, which realizes the low-harm of inclusions.
【作者單位】: 鋼鐵研究總院;
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目資助項(xiàng)目(51474076) 國(guó)家國(guó)際科技合作專項(xiàng)資助項(xiàng)目(2015DFG51950)
【分類號(hào)】:TG142.1
本文編號(hào):2189956
[Abstract]:In order to study the difference of inclusion characteristics between imported and domestic high-end bearing steels, the size and morphology of inclusions in an imported isotropic bearing steel and a domestic high-end bearing steel were evaluated by means of ASPEX-explorer and optical microscope. The results show that the inclusions of imported isotropic bearing steel are finer and the shape is ellipsoidal than that of domestic high-end bearing steel with the same production process, and the anisotropy can be reduced. Composite form appears, and the composite way is to coat rigid inclusions with Ca S particles, which realizes the low-harm of inclusions.
【作者單位】: 鋼鐵研究總院;
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目資助項(xiàng)目(51474076) 國(guó)家國(guó)際科技合作專項(xiàng)資助項(xiàng)目(2015DFG51950)
【分類號(hào)】:TG142.1
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