Industrial study on modification of sulfide in Y1Cr13free-cutting stainless steel by tellurium

Wu Liangping; Fu Zhenggang; Zhou Maohua; Wang Jianqiang; Xie Jianbo; Fu Jianxun

doi:10.7513/j.issn.1004-7638.2022.05.029

Volume 43 Issue 5

Nov. 2022

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Wu Liangping, Fu Zhenggang, Zhou Maohua, Wang Jianqiang, Xie Jianbo, Fu Jianxun. Industrial study on modification of sulfide in Y1Cr13free-cutting stainless steel by tellurium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 197-204. doi: 10.7513/j.issn.1004-7638.2022.05.029

Citation:

Wu Liangping, Fu Zhenggang, Zhou Maohua, Wang Jianqiang, Xie Jianbo, Fu Jianxun. Industrial study on modification of sulfide in Y1Cr13free-cutting stainless steel by tellurium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 197-204. doi: 10.7513/j.issn.1004-7638.2022.05.029

Citation:

Wu Liangping, Fu Zhenggang, Zhou Maohua, Wang Jianqiang, Xie Jianbo, Fu Jianxun. Industrial study on modification of sulfide in Y1Cr13free-cutting stainless steel by tellurium[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 197-204. doi: 10.7513/j.issn.1004-7638.2022.05.029

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Industrial study on modification of sulfide in Y1Cr13free-cutting stainless steel by tellurium

doi: 10.7513/j.issn.1004-7638.2022.05.029

1.
Center for Advanced Solidification Technology & State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
2.
Pangang Group Sichuan Great Wall Special Steel Co., Ltd, Jiangyou 621000, Sichuan, China

Received Date: 2021-04-12
Publish Date: 2022-11-01

Abstract

Abstract

The effect of sulfide modification by Te was analyzed and compared by means of metallographic microscopy, scanning electron microscope and Image-Pro Plus image analysis software. The results show that MnTe inclusions precipitated around the MnS inclusions when 0.011% Te added to the steel, resulting in the coarsening of sulfide inclusions. The morphology of most sulfides is ellipsoidal and spindle with dispersive distribution. Te enhanced the deformation resistance ability of sulfide inclusions. After adding Te to steel, the spindle percentage of sulfide inclusions increased from 55.4% to 86.5% compared to non-addition of Te. The sulfide rating decreased from 3-1 to 2-2. Thus, the sulfide morphology and rating are significantly improved. The machining test shows that when the cutting speed was 180 , 360 and 560 r/min, the percentage of C-chip obtained after cutting was 53%, 59% and 64%, respectively, and the surface roughness (Ra) value of workpiece was 3.407, 2.112 and 4.186 μm, respectively. However, when the Te powder was added to the steel, the percentage of C-chip obtained after cutting was 86%, 90% and 93%, and the surface roughness (Ra) of workpiece after cutting was 2.302, 1.978 and 3.220 μm, respectively. Therefore, the cutting property of steel was improved with Te addition.
- Y1Cr13 stainless steel,
- sulfides,
- tellurium modification,
- cutting performance

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References(15)

References

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