Quantitative prediction of Al and learning grain boundary character in Al-rich interstitial free steel

Tamboli, Rameez R.; Dudala, Srinivas; Andersen, Dustin; Valle, Nathalie; Eswara, Santhana; Khanna, Rajesh; Fujiwara, Hiroshi; Guennec, Benjamin; Ameyama, Kei; Bhattacharya, Baby; Dey, Suhash Ranjan

doi:10.1016/j.scriptamat.2022.114858

Cited by 4 publications

(1 citation statement)

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“…Mechanical properties of polycrystalline metals are definitely related to their mcrostructures, like grain size, dislocation distribution, and crystal orientation [3][4][5]. Among the different steel grades, interstitial free (IF) steel finds an important position in the automotive industry owing to its good deep drawability, which is achieved through a strong normal direction (ND) fiber recrystallization texture formed during the annealing process [6][7][8]. For the UF steel, annealing process also plays a critical role in the formation of the final microstructure and quality of the products.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and texture development during annealing in UF340

Li,

Guan,

et al. 2023

J. Phys.: Conf. Ser.

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UF340 is a new type of cold-rolled fine grain high-strength steel with excellent formability developed by Shougang Co., Ltd Company. In this paper, the formation mechanism of recrystallisation texture of UF340 during annealing at 720 °C were systematically investigated. The as-received cold rolled sheet displayed a pronounced α-fiber texture together with a weak γ-fiber texture. With increasing annealing time, recrystallization occurred in the elongated grains, γ-fiber texture grains generated and grew up gradually. The texture component of the original α-fiber grains shift toward {112} <110>, {023} <100>, {223}<352> and finally {111} <112>. High r-values of UF340 in all directions were achieved by the development of the remarkable γ-fiber texture. In addition, the r ¯ value of the annealed UF340 was as high as 1.96, and the Δr value was only 0.2. As a result, excellent deep drawability and relatively high strength of UF340 were realized simultaneously, making it one of the ideal materials for automobile outer panels.

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