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Significant Grain Refinement in the Simulated Heat-Affected Zone (HAZ) of Ferritic Stainless Steels by Alloying with Tungsten

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Abstract

We elucidate here the effect of tungsten on grain refinement in the HAZ of ferritic stainless steels (FSSs) at 1200 °C and 1350 °C. The average simulated HAZ grain size of W-containing FSS (1.5 wt. pct W) was reduced by ~ 50 pct compared to W-free FSS at 1350 °C. The replacement of Mo with W in FSSs enhanced the thermal stability of Laves phase at high temperatures and contributed to fine grain size in the HAZ via pinning effect.

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The authors gratefully acknowledge the joint financial support from the National Natural Science Foundation of China and Baowu Group Co., Ltd. (Grant No. U1660205). Liangliang Wei was supported by the China Scholarship Council (201806080113).

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Authors and Affiliations

  1. State Key Laboratory of Rolling and Automation, Northeastern University, 3-11 Wenhua Road, Shenyang, 110819, China

    Liangliang Wei, Liqing Chen & Houlong Liu

  2. Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX, 79968, USA

    Liangliang Wei & R. D. K. Misra

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  1. Liangliang Wei
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  2. Liqing Chen
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  3. Houlong Liu
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  4. R. D. K. Misra
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Correspondence to Liqing Chen.

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Manuscript submitted December 14, 2019.

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Wei, L., Chen, L., Liu, H. et al. Significant Grain Refinement in the Simulated Heat-Affected Zone (HAZ) of Ferritic Stainless Steels by Alloying with Tungsten. Metall Mater Trans A 51, 2719–2723 (2020). https://doi.org/10.1007/s11661-020-05767-4

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