Reduction model of hot- and cold-rolled high-strength steels during and after fire

Wanrg, Hui; Nie, Shidong; Li, Jingyao

doi:10.1016/j.firesaf.2022.103563

Cited by 7 publications

(2 citation statements)

References 55 publications

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“…Over the past few decades, rolled steel products have enabled the rapid introduction of higher grades, aided by the QT and TMCP processes. Figure 2 depicts the historical development of the steel grades available in Europe for the rolled products incorporated in the EN 10149-2 [13]. Only up to S460N can be normalized to meet the moderate strength and toughness requirements, where 460 represents the YS of the steel grade.…”

Section: Historical Development Of Ahssmentioning

confidence: 99%

Advanced High-Strength Steels for Automotive Applications: Arc and Laser Welding Process, Properties, and Challenges

Perka

John

Kuruveri

et al. 2022

Metals

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In recent years, the demand for advanced high-strength steel (AHSS) has increased to improve the durability and service life of steel structures. The development of these steels involves innovative processing technologies and steel alloy design concepts. Joining these steels is predominantly conducted by following fusion welding techniques, such as gas metal arc welding, tungsten inert gas welding, and laser welding. These fusion welding techniques often lead to a loss of mechanical properties due to the weld thermal cycles in the heat-affected zone (HAZ) and the deposited filler wire chemistry. This review paper elucidates the current studies on the state-of-the-art of weldability on AHSS, with ultimate strength levels above 800 MPa. The effects of alloy designs on the HAZ softening, microstructure evolution, and the mechanical properties of the weld joints corresponding to different welding techniques and filler wire chemistry are discussed. More specifically, the fusion welding techniques used for the welding of AHSS were summarized. This review article gives an insight into the issues while selecting a particular fusion welding technique for the welding of AHSS.

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Section: Historical Development Of Ahssmentioning

confidence: 99%

Advanced High-Strength Steels for Automotive Applications: Arc and Laser Welding Process, Properties, and Challenges

Perka

John

Kuruveri

et al. 2022

Metals

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“…There are a variety of methods to analyze data in chemical experiments involving drawing a diagram. [17][18][19] Although the detectors input an analogue signal, an analog-to-digital converter was used to help the signal transform into a digital signal which can be understood by the computer. Because of the characteristic of digital signals, the data is discredited which means one cannot get the value whenever it occurs.…”

Section: Introductionmentioning

confidence: 99%

Fire safety prediction for polypropylene composites in flammable environments

Dong

Zhang

Liu

et al. 2023

Preprint

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The modeling of polymer combustion is a big challenge due to the fast speed and complexity of various reactions during the flammable environments. Limiting oxygen index (LOI), heat release rate (HRR), and total heat release (THR) are three key parameters to evaluate the flammability of polymeric composites. In this work, cubic interpolation and Lagrange interpolation methods are used to simulate the data and predict the flammability of PP containing different loads of aluminum hydroxide (ATH). Simple formulations containing ATH were designed to avoid the influence of other fillers on the combustion process. The LOI, HRR, and THR are simulated and verified by the experimental data. The advantages and disadvantages of the two modeling methods in predicting the combustion data are compared. It was demonstrated that the cubic method was more precise than the Lagrange method in predicting the LOI value of PP composite. Both methods were suitable for predicting HRR and THR values of PP composites containing low amount of ATH (less than 35%). This work has important reference significance in predicting the fire performance of polymers containing inorganic additives.

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