steel research international

Cover image for Vol. 84 Issue 5

May 2013

Volume 84, Issue 5

Pages 415–510

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
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      steel research int. 5/2013

      Version of Record online: 2 MAY 2013 | DOI: 10.1002/srin.201390008

      Cover Photo: The cover shows a bright fi eld image for the traditional AISI M41 steel under two-beam conditions. More details can be found in the article by H. Halfa on page 495.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Full Papers
    1. You have free access to this content
      steel research int. 5/2013 (pages 415–418)

      Version of Record online: 2 MAY 2013 | DOI: 10.1002/srin.201390009

  3. Full Papers

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Full Papers
    1. Study on the Possibility of Using ZnO for Hot Metal Desulfurization (pages 419–425)

      David Lindström, Patrice Nortier, Bjoern Glaser and Du Sichen

      Version of Record online: 30 OCT 2012 | DOI: 10.1002/srin.201200154

      Thumbnail image of graphical abstract

      The possibility of using ZnO for desulfurization in hot metal has been evaluated. A experimental setup has been designed so that different desulfurizing agents could be added to hot metal for evaluation of their desulfurizing power. Additions of ZnO into the hot metal under various experimental conditions shows no effect on desulfurization. The results are in contradiction to the suggestion found in literature. A thorough examination of the thermodynamic data employed by the previous work has been carried out.

    2. Influence of Strain Rate, Temperature, Plastic Strain, and Microstructure on the Strain Rate Sensitivity of Automotive Sheet Steels (pages 426–442)

      Patrick Larour, Annette Bäumer, Kirsten Dahmen and Wolfgang Bleck

      Version of Record online: 5 NOV 2012 | DOI: 10.1002/srin.201200099

      Thumbnail image of graphical abstract

      The strain rate sensitivity m of automotive sheet steel grades has been determined by means of servohydraulic dynamic tensile tests in the strain rate range 10−3–200 s−1 and in the temperature range 233–373 K. m-values are improved with decreasing temperature or increasing strain rate and decrease with increasing quasistatic flow stress or plastic strain.

    3. The Effect of Hot- and Cold-Rolling on the Electropulse-Induced Microstructure and Property Changes in Medium Carbon Low Alloy Steels (pages 443–449)

      W. P. Yu, R. S. Qin and K. M. Wu

      Version of Record online: 5 DEC 2012 | DOI: 10.1002/srin.201200179

      Thumbnail image of graphical abstract

      A SEM micrograph of cold-rolled specimens treated with 6.0 kV voltage electropulsing treatment. The electropulsing treatment causes microstructure refinement and improvements in mechanical properties in cold-rolled steels. The effect of electropulsing is found to be negligible in hot-rolled steels. The combined effects of high dislocation density and electropulsing causes microstructure transformations.

    4. Low Carbon High Nitrogen Low Nickel Stainless Steel (pages 450–456)

      Saeed N. Ghali

      Version of Record online: 29 OCT 2012 | DOI: 10.1002/srin.201200152

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      In this study, the solubility behaviors of nitrogen in two free nickel– and low nickel–austenitic stainless steels have been investigated. Furthermore, the microstructure and mechanical properties of the investigated stainless steels are compared with a reference conventional nickel–austenitic stainless steel. The strengthening mechanisms contribution to strength of both soluble and insoluble nitrogen has been analyzed.

    5. Improving High-Temperature Wear Resistance of Fe–Cr13–C Hardfacing Alloy by Nitrogen Alloying (pages 457–462)

      Ke Yang and Yefeng Bao

      Version of Record online: 4 DEC 2012 | DOI: 10.1002/srin.201200158

      Thumbnail image of graphical abstract

      A large number of carbonitrides precipitated with very fine sizes and distributed homogeneously in the matrix during the high-temperature wear, which cannot only enhance the wear resistance but also decrease the susceptibility to crack. So the hardfacing alloy with nitrogen has microstructures in which hard, fine carbonitrides are homogeneously distributed in the matrix, and thus has excellent high-temperature hardness, crack resistance, and wear resistance.

    6. A Springback Compensation Strategy and Applications to Bending Cases (pages 463–472)

      Juan Liao, Xin Xue, Chi Zhou, Frederic Barlat and Jose J. Gracio

      Version of Record online: 18 DEC 2012 | DOI: 10.1002/srin.201200220

      Thumbnail image of graphical abstract

      Part shape error due to springback is a manufacturing defect in the sheet metal forming. This problem can be corrected by adjusting the tool shape to an appropriate shape or process optimization. A discrete curvature adjustment (DCA) strategy is developed for tool design of complex bending products. It aims at generating the right tool shape in a short time using the measured data from stamped part.

    7. Cleanliness of Low Carbon Aluminum-Killed Steels during Secondary Refining Processes (pages 473–489)

      Wen Yang, Xinhua Wang, Lifeng Zhang, Qinglin Shan and Xuefeng Liu

      Version of Record online: 5 DEC 2012 | DOI: 10.1002/srin.201200213

      Thumbnail image of graphical abstract

      After LF refining, inclusions are transformed to small spheres. However, even at the end of CAS and RH-LIT refining, there are still many large clusters and aggregates be observed, they are very detrimental to the subsequent casting process. Besides, many small spherical and polyhedral particles are observed as well in the steel samples after CAS and RH refining.

    8. Determination of the Critical Strains for the Initiation of Dynamic Transformation and Dynamic Recrystallization in Four Steels of Increasing Carbon Contents (pages 490–494)

      Chiradeep Ghosh, Vladimir V. Basabe and John J. Jonas

      Version of Record online: 5 DEC 2012 | DOI: 10.1002/srin.201200188

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      The formation of ferrite during rolling at temperatures above the Ae3 is a controversial topic. Here it is shown that strong evidence for the occurrence of this transformation can be obtained directly from the flow curve of the deformation using the double-differentiation method. The critical strain for dynamic transformation is shown to be distinctly less than that for dynamic recrystallization.

    9. Characterization of Electroslag Remelted Super Hard High Speed Tool Steel Containing Niobium (pages 495–510)

      Hossam Halfa

      Version of Record online: 18 MAR 2013 | DOI: 10.1002/srin.201200332

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      In this work, thermodynamical equilibria have been calculated for super hard high speed steel, AISI M41 composition belonging to the multicomponent system Fe–C–Cr–W–Mo–V–Co as well as for its three different variants containing niobium. Effect of niobium and high cooling rate during electroslag remelting on the precipitated carbides, morphology of carbides, secondary hardening temperature, and wear rate of investigated steels are studied.

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