1.辽宁科技大学材料与冶金学院,鞍山114051
2.辽宁省绿色低碳与智能冶金重点实验室,鞍山114051
徐太旭(1993—),男,博士研究生; E-mail:xutaixu@126.com
何志军(1979—),男,博士,教授; E-mail:hzhj2002@126.com
收稿:2023-09-20,
纸质出版:2024-05-30
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徐太旭,何志军,杨鑫等.Si对铸态高碳铬轴承钢中渗碳体类型转变的影响机理[J].特殊钢,2024,45(03):15-21.
Xu Taixu,He Zhijun,Yang Xin,et al.Mechanism of Si on the Cementite Type Transformation in As-cast High Carbon Chromium Bearing Steel[J].Special Steel,2024,45(03):15-21.
徐太旭,何志军,杨鑫等.Si对铸态高碳铬轴承钢中渗碳体类型转变的影响机理[J].特殊钢,2024,45(03):15-21. DOI: 10.20057/j.1003-8620.2023-00201.
Xu Taixu,He Zhijun,Yang Xin,et al.Mechanism of Si on the Cementite Type Transformation in As-cast High Carbon Chromium Bearing Steel[J].Special Steel,2024,45(03):15-21. DOI: 10.20057/j.1003-8620.2023-00201.
利用真空感应炉制备了四种不同Si(质量分数/%:0.29、0.42、0.71、1.50)的铸态高碳铬轴承钢,并采取非水溶液电解法萃取钢中碳化物。通过扫描电镜观察钢中碳化物的二维和三维形貌,采用X-射线衍射仪(XRD)对不同Si含量下碳化物的类型进行探究,并结合热力学和第一性原理计算明确Si含量影响渗碳体类型的本质机理。研究结果表明,不同Si含量的高碳铬轴承钢中都存在两种类型的碳化物,分别是片层状渗碳体((Fe
1-X
Mn
X
)
3
C)和晶界碳化物M
23
C
6
。随着
w
[Si]从0.29%增加到1.50%,M
23
C
6
晶界碳化物由连续粗大的棒状结构变为断续细小的点状结构,说明Si含量的增加对晶界碳化物的析出具有抑制效果。而Si含量的增加,降低了Mn在(Fe
1-X
Mn
X
)
3
C渗碳体中的占比,渗碳体类型的转变趋势为Fe
1.8
Mn
1.2
C向Fe
3
Mn
0
C转变。可能的原因是,渗碳体生成析出过程,Si原子被外排到渗碳体周围形成富Si微区,阻碍基体中的Mn原子向渗碳体扩散,降低了Mn在基体中的活度以及扩散迁移能力,从而降低了Mn在渗碳体中的相对含量。
Four as-cast high carbon chromium bearing steels with different Si contents (0.29%、0.42%、0.71% and 1.50%)were prepared using a vacuum induction furnace, the carbides in the steel were extracted by nonaqueous solution electrolysis method. The two-dimensional and three-dimensional morphology of carbides in steel was observed through scanning electron microscopy. the types of carbides at different Si contents were investigated by X-ray diffractometer, the essential mechanism of influence of Si content on cementite type was determined by thermodynamics and first principles calculation. The research results indicate that there are two types of carbides in as-cast high carbon chromium bearing steel with different Si contents, namely layer cementite (Fe
1-X
Mn
X
)
3
C and grain boundary carbides M
23
C
6
. With the increase of Si content (0.29%-1.50%), the M
23
C
6
grain boundary carbides change from a continuous coarse rod-shaped structure to a discontinuous fine point like structure, which indicate that the increase of Si content has an inhibitory effect on the precipitation of grain boundary carbides. In addition, the increase in Si content reduces the proportion of Mn in (Fe
1-X
Mn
X
)
3
C cementite, and the transformation trend of cementite type is from Fe
1.8
Mn
1.2
C to Fe
3
Mn
0
C. The possible reason is that during the precipitation process of cementite formation, Si atoms are discharged into area around cementite to form a Si rich micro zone, which hinders the diffusion of Mn atoms from the matrix to the cementite, reduces the activity and diffusion migration ability of Mn in the matrix. Thus, the relative content of Mn in the cementite is reduced.
官跃辉 , 张 林 , 张剑锋 , 等 . GCr15轴承钢碳化物控制及其对压碎负荷的影响 [J]. 特殊钢 , 2022 , 43 ( 6 ): 38 - 41 .
Yao H , Zhang L F , Ren Q . Influence of inclusions on the nucleation of acicular ferrites in a Ti–Zr-bearing steel [J]. Steel Research International , 2022 , 93 ( 2 ): 1 - 9 .
Suh M S , Nahm S H , Suh C M , et al . Fracture behaviors at inclusions of very-high-cycle fatigue in newly developed clean bearing steel [J]. International Journal of Modern Physics B , 2021 , 35 ( 26 ): 1 - 24 .
张 林 , 刘 海 , 官跃辉 , 等 . 高碳铬轴承钢碳化物带状评定方法探究 [J]. 特殊钢 , 2022 , 43 ( 6 ): 42 - 45 .
邹 涛 , 王 鹏 , 董艳伍 , 等 . Ce-Mg合金加入对GCr15轴承钢夹杂物和凝固组织的影响 [J]. 特殊钢 , 2022 , 43 ( 6 ): 1 - 7 .
Shi Z Y , Wang H , Gao Y H , et al . Improve fatigue and mechanical properties of high carbon bearing steel by a new double vacuum melting route [J]. Fatigue & Fracture of Engineering Materials & Structures , 2022 , 45 ( 7 ): 1995 - 2009 .
Gu C , Liu W Q , Lian J H , et al . In-depth analysis of the fatigue mechanism induced by inclusions for high-strength bearing steels [J]. International Journal of Minerals, Metallurgy and Materials , 2021 , 28 ( 5 ): 826 - 834 .
吕子宇 , 顾 超 , 包燕平 . 轴承钢中不同成分钙铝酸盐类夹杂物对疲劳性能的影响 [J]. 现代交通与冶金材料 , 2022 , 2 ( 3 ): 36 - 40+50 .
Ma C Y , Zhang G , Wang Y W , et al . Effect of non-metallic inclusions on subsurface stress and fatigue life of high-speed railway bearings [J]. IOP Conference Series: Earth and Environmental Science , 2021 , 632 ( 5 ): 052001 .
Wang Z T , Yuan Q , Zhang Z C , et al . Influence of cementite precipitation on work hardening behavior in ultrafine grain steels rolled at room and cryogenic temperatures [J]. Metals , 2022 , 12 ( 11 ): 1845 .
周 杰 . 超高强度桥梁缆索用钢的微合金化及强化机理 [D]. 武汉 : 武汉科技大学 , 2022 .
皇祝平 , 李 解 , 周正东 , 等 . 82B盘条中心网状渗碳体形成原因及改善措施 [J]. 金属制品 , 2022 , 48 ( 2 ): 26 - 29 .
吕 明 , 米小雨 , 张朝晖 , 等 . 连铸工艺参数对SWRH82B高碳钢碳偏析的影响 [J]. 工程科学学报 , 2020 , 42 ( S1 ): 102 - 108 .
魏福安 , 喇培清 , 金培鹏 . 轧制变形对高强高塑纳米结构珠光体1020钢的影响 [J]. 热加工工艺 , 2018 , 47 ( 11 ): 1 - 6 .
Kim B , Celada C , San Mart\'\in D , et al . The effect of silicon on the nanoprecipitation of cementite [J]. Acta Materialia , 2013 , 61 ( 18 ): 6983 - 6992 .
Wu Y X , Sun W W , Gao X , et al . The effect of alloying elements on cementite coarsening during martensite tempering [J]. Acta Materialia , 2020 , 183 : 418 - 437 .
Kozeschnik E , Bhadeshia H K D H . Influence of silicon on cementite precipitation in steels [J]. Materials Science and Technology , 2008 , 24 ( 3 ): 343 - 347 .
Kresse G , Furthmüller J . Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set [J]. Physical Review B , Condensed Matter, 1996 , 54 ( 16 ): 11169 - 11186 .
Perdew J P , Burke K , Ernzerhof M . Generalized gradient approximation made simple [J]. Physical Review Letters , 1996 , 77 ( 18 ): 3865 - 3868 .
Tanaka A . The determination of the activities in Mn-C and Mn-Si melts by the vapor pressure measurement [J]. Transactions of the Japan Institute of Metals , 1979 , 20 ( 9 ): 516 - 522 .
Zhou W , Wu H , Yildirim T. Electronic , dynamical , and thermal properties of ultra-incompressible superhard rhenium diboride : A combined first-principles and neutron scattering study [J]. Physical Review B , 2007 , 76 ( 18 ): 184113 .
Appen J V , Eck B , Dronskowski R . A density-functional study of the phase diagram of cementite-type (Fe, Mn) 3 C at absolute zero temperature [J]. Journal of Computational Chemistry , 2010 , 31 ( 14 ): 2620 - 2627 .
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