Recent studies on low carbon steel indicate that crystallographic textures may have measurable effects on tensile and toughness anisotropy.However, detailed discussions about quantitative relationships among these important characteristics are still lacking. 5,6 The anisotropic mechanical behavior of steel plates has a great impact on several
Anisotropy of impact toughness (Kv) of -rolled coils is hot significantly emphasized, so in this case impact toughness in longitudinal direction-L is nearly three times (3X) greater than the impact toughness in the transversal direction-T. This is the biggest difference between these two directions of hot rolled coils and AluMATTER, a New Interactive E-Learning Tool - Analysis of Texture Formation and Microstructure Characteristics of Cold Rolled IF Steel Sheets. Cai, Y. X. / Liu, Y. D. / Wang, Toughness Anisotropy in Intercritically Rolled Steel Plates. Petrov, R. / Kestens, L. / Houbaert, Y Plastic Anisotropy and Texture Evolution of Rolled AZ31 Magnesium Alloys. Hartig, C. / Styczynski, A
The present paper investigated the relationship between low temperature impact toughness and microstructure of bainite in coarse-grained heat affected zone (CGHAZ) and intercritically rehazed CGHAZ (ICCGHAZ) of an offshore engineering steel from both the microstructure morphological and crystallographic aspects. In this work, six groups of samples simulated Crystals Free Full-Text Microstructural Influence on This work investigated the microstructural effect on stretch flangeability of ferritemartensite dual-phase (DP) steels. Three types of DP steels with various martensitic structures were prepared for the research:fibrous martensite in water-quenched (WQ) sample, chained martensite in air-quenched (AQ) sample, and coarse martensite in step-quenched (SQ) sample.
Sep 26, 2020 · The structure and mechanical properties under tension and impact bending of eleven batches of high-strength manganese-containing steels (Mn-steels) containing 0.09 to 0.14 wt.% Ti subjected to thermomechanical rolling were studied in the temperature range from 60 to +20 °. It was found that the values of the coefficient of impact toughness anisotropy in the Effects of Annealing Treatment Prior to Cold Rolling on order to simulate a coiling procedure. The hot-rolled steel plates were rolled at room temperature to make 1-mm-thick steel sheets. Some hot-rolled plates were batch annealed at 1023 K (750 C) for 1 hour in a furnace prior to cold rolling. The cold-rolled sheets were intercritically annealed at 1103 K (830 C) for 1 min in a
Jul 31, 2020 · The objective of the present work is to investigate the mechanical properties of the dual phase (DP) steels produced by the intermediate quenching (IQ) technique. To produce the ferrite-martensite microstructure in the dual phase (DP) steel, low carbon micro alloyed steel is intercritically heat treated followed by short intercritical annealing and intermediate High-carbon hot rolled steel sheet with excellent The invention claimed is:1. A high-carbon hot rolled steel sheet with excellent hardenability and small in-plane anisotropy, the steel sheet having a chemical composition including, by mass %, C:0.20 to 0.48%, Si:not more than 0.1%, Mn:not more than 0.5%, P:not more than 0.03%, S:not more than 0.01%, sol. Al:not more than 0.10%, N:not more than 0.005% and B:0.0005 to
Toughness Anisotropy in Intercritically Rolled Steel Plates p.1499 Allowance for Internal Microstresses and Texture in Evaluation of Residual Stresses in Cold-Drawn Steel Wires with Micromechanical Models Intercritical austenite formation in the coarse grain heat The intercritically reheated coarse grain heat affected zone (ICCGHAZ) is a region of low impact toughness in multi-pass welded steel structures such as pipelines. Its microstructure consists of a bainite matrix (the coarse grain heat affected zone, CGHAZ) and martensite-austenite (M/A) constituents. The former is a result of full austenitization in the first weld pass, and the latter of
A medium Mn steel has been designed to achieve an excellent combination of strength and ductility based on the TRIP (Transformation Induced Plasticity) concept for automotive applications. Following six passes of hot rolling at 850 °C, the Fe-7.9Mn-0.14Si-0.05Al-0.07C (wt.%) steel was warm-rolled at 630 °C for seven passes and subsequently air cooled to Microstructures and properties of controlled rolled and Modern plate production techniques involving controlled rolling below the Ar3 temperature and, more recently, the development of equipment for interrupted accelerated cooling after rolling have made it possible to simultaneously reduce the alloy content of line pipe steels, while maintaining their strength-toughness balance. Several investigations have been conducted at the Climax
Steel plates rolled in the intercritical region have ultrafine and elongatedgrained microstructures, and excellent toughness. and the mechanical properties of intercritically rolled (IR Mechanical Anisotropy in Steels for PipelinesThe orientation dependence of toughness is a wellknown phenomenon for hotrolled steels in general [14, 15]. As will be seen later, there is also considerable work in the context of pipeline steels. There are three particular factors which are emphasised in discussing toughness anisotropy: