steel research international

Cover image for Vol. 83 Issue 5

May 2012

Volume 83, Issue 5

Pages 409–500

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Full Papers
    1. steel research int. 5/2012

      Version of Record online: 2 MAY 2012 | DOI: 10.1002/srin.201290008

      Cover Photo: The cover pictures a semi-transparent image showing deformation pores near the fracture surface of a V-microalloyed steel sample strained to failure at 750°C and 0.3/s. Further details can be found in the article by S. Großeiber et.al.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Full Papers
    1. steel research int. 5/2012 (pages 409–411)

      Version of Record online: 2 MAY 2012 | DOI: 10.1002/srin.201290009

  3. Review

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Full Papers
    1. State-of-the-Knowledge on Coating Systems for Hot Stamped Parts (pages 412–433)

      Dong Wei Fan and Bruno C. De Cooman

      Version of Record online: 16 MAR 2012 | DOI: 10.1002/srin.201100292

      Thumbnail image of graphical abstract

      The contribution is a comprehensive review of the state-of-the-knowledge on coating systems developed for steel grades used in hot stamping. The properties of the widely used aluminized coatings and the Zn and Zn-alloy coatings are discussed in detail. The alternative Zn–Ni alloy coating, the hybrid coatings, and newer types of coatings are also reviewed. The physical metallurgical mechanisms which control the microstructural evolution of the coating during the thermo-mechanical cycle of the hot press forming process and the associated challenges related to the use of each specific coating are presented.

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Full Papers
    1. Contrary Effects of Microstructure and Cleanliness on Tensile and Toughness Properties in Precipitation Hardening Stainless Steels (pages 434–444)

      Eva-Maria Nick, Merle G. J. Müller, Sally G. Voigt, Daesung Park, Alexander Reinholdt, Alexander Schwedt, Thomas E. Weirich, Wolfgang Bleck and Sebastian Münstermann

      Version of Record online: 10 FEB 2012 | DOI: 10.1002/srin.201100237

      Thumbnail image of graphical abstract

      Due to their favorable combination of strength, toughness, and corrosion resistance precipitation hardening stainless steels are widely employed. To evaluate costs and effects of metallurgical processing and heat treatment the two steels 1.4542 and 1.4545 are compared regarding their microstructure and resulting mechanical properties. The analysis leads to a deeper understanding of how purity and microstructural constituents may impair strength, elongation, and toughness behavior.

    2. Influence of Strain Rate on Hot Ductility of a V-Microalloyed Steel Slab (pages 445–455)

      Simon Großeiber, Sergiu Ilie, Cecilia Poletti, Bernhard Harrer and Hans Peter Degischer

      Version of Record online: 28 MAR 2012 | DOI: 10.1002/srin.201100335

      Thumbnail image of graphical abstract

      The hot ductility and malleability of a vanadium-microalloyed steel is investigated by means of tensile and compression tests at temperatures ranging from 700 to 850°C and strain rates of 3 × 10−4–0.3 s−1. Ductility increases with strain rate mainly due to the short time available for precipitation as well as for intergranular void growth and coalescence.

    3. A Novel Process Control Model for Extracting Vanadium Semi-Steel in Basic Oxygen Furnace Based on Steelmaking Mechanism (pages 456–464)

      Kai Chen, Zhong Zheng and Xiaoqiang Gao

      Version of Record online: 15 FEB 2012 | DOI: 10.1002/srin.201100211

      Thumbnail image of graphical abstract

      A novel process control model for BOF steelmaking is proposed based on metallurgy mechanism, with lower contents of carbon, manganese, silicon and lower temperature in semi steel after extracting vanadium. A steelmaking process control system for semi steel smelting on 120 ton BOF is developed in a steelmaking plant in China. Based on test of 3 steel grades, this model acts a guide for BOF steelmaking with semi steel, not only providing tactic, but also pointing out a feasible method for BOF process control without sub-lance or off-gas analyzer.

    4. Titanium Containing High Strength Sulfuric Acid Corrosion Resistant Steel (pages 465–471)

      Hairong Guo, Tingting Li, Hualong Li and Emi Toshihiko

      Version of Record online: 16 JAN 2012 | DOI: 10.1002/srin.201100261

      Thumbnail image of graphical abstract

      Ti plays an important role in improving sulfuric acid corrosion (SAC) resistance of low alloy steels. Ti containing steel without Sb addition is found having not only similar SAC resistance as traditional SAC resistant steels of CuCrSb system, but also higher strength. This finding is helpful in designing new types of acid corrosion resistant steels.

    5. Assessment of Oxygen Control and Its Effect on Inclusion Characteristics during Electroslag Remelting of Die Steel (pages 472–486)

      Cheng-Bin Shi, Xi-Chun Chen, Han-Jie Guo, Zi-Jiang Zhu and Hao Ren

      Version of Record online: 10 FEB 2012 | DOI: 10.1002/srin.201100200

      Thumbnail image of graphical abstract

      The oxygen content can be reduced to the lowest (12 ppm) only when protective Ar gas remelting in combination with specially designed slag deoxidation treatment were employed simultaneously during ESR process. Only pure Al2O3 inclusions of about 1 µm in size were observed in ESR ingot. The mechanisms of oxygen behavior and control together with inclusion evolution during ESR process were proposed.

    6. In Situ Observation of the Evolution of Intragranular Acicular Ferrite at Ce-Containing Inclusions in 16Mn Steel (pages 487–495)

      Wen Bin and Song Bo

      Version of Record online: 22 FEB 2012 | DOI: 10.1002/srin.201100266

      Thumbnail image of graphical abstract

      The in situ observation of the evolution of intragranular acicular ferrite (IAF) at Ce-containing inclusions was carried out using a high-temperature laser scanning confocal microscopy. The results show that the temperature range for IAF transformation is around between 557 and 623°C, and the time for which is about 13 s.

    7. Three-Dimensional Morphological and Crystallographic Investigation of Lamellar Alpha and Retained Beta in a Near Alpha Titanium Alloy by Combination of Focused Ion Beam and Electron Backscattering Diffraction (pages 496–500)

      Dong He, Stefan Zaefferer, Jingchuan Zhu and Zhonghong Lai

      Version of Record online: 20 FEB 2012 | DOI: 10.1002/srin.201200013

      Thumbnail image of graphical abstract

      Three-dimensional morphology and crystal orientation distribution of primary α, fine second α lamellae, and retained β layers in a near α titanium alloy have been studied by a combination of serial sectioning and EBSD orientation mapping technology in a FIB-SEM. The results are very interesting and some of them are very different from the traditional points getting from 2D microstructure observation.

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