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In the casting process of steels with a C‐content ranging from 0.09 to 0.53 mass%, austenite is formed as secondary crystal phase by peritectic reaction between crystal of δ ferrite and residual melt. For unalloyed or micro‐alloyed steels the C‐content or C‐equivalent influences the casting behavior of steel in the mould, such as strand shell growth, crack formation, heat transfer, temperature fluctuation in the copper plate, mould level fluctuation and oscillation marks formation. The negative casting behavior like the uneven strand shell growth, the deep oscillation mark formation, the high mould level fluctuation, the crack formation on the strand surface were found mostly for steel with C‐content or Cp between 0.10–0.13 mass%. The strand shell structure (strand shell growth, mushy zone, δ + γ phase transformation) and shrinkage of the strand shell were simulated depending on the C‐content by means of mathematical simulation. On the basis of the simulation results and of the measured high temperature strength of steel the dependence of stiffness and the irregularity of the shrinkage of strand shell on the C‐content was investigated. It was found that the stiffness and irregularity of the shrinkage of the strand shell reach the maximum value at a C‐content of about 0.12 mass%.
In the casting process of steels with a C‐content ranging from 0.09 to 0.53 mass%, austenite is formed as secondary crystal phase by peritectic reaction between crystal of δ ferrite and residual melt. For unalloyed or micro‐alloyed steels the C‐content or C‐equivalent influences the casting behavior of steel in the mould, such as strand shell growth, crack formation, heat transfer, temperature fluctuation in the copper plate, mould level fluctuation and oscillation marks formation. The negative casting behavior like the uneven strand shell growth, the deep oscillation mark formation, the high mould level fluctuation, the crack formation on the strand surface were found mostly for steel with C‐content or Cp between 0.10–0.13 mass%. The strand shell structure (strand shell growth, mushy zone, δ + γ phase transformation) and shrinkage of the strand shell were simulated depending on the C‐content by means of mathematical simulation. On the basis of the simulation results and of the measured high temperature strength of steel the dependence of stiffness and the irregularity of the shrinkage of strand shell on the C‐content was investigated. It was found that the stiffness and irregularity of the shrinkage of the strand shell reach the maximum value at a C‐content of about 0.12 mass%.
The present article addresses Mihai Iovănel’s recently published History of Contemporary Romanian Literature: 1990-2020 while pursuing a series of similarities with other contributions to postcommunist national literatures in the Central and Eastern European cultural space, on the one hand, and with previous ways of understanding the concept of literary history, on the other. The article argues that Iovănel’s History is one of the first to assess the importance of the social in the production, study, and national, as well as transnational dissemination of Romanian literature, an emphasis without which the study of literary phenomena risks falling into the blindness of aesthetic autonomy, whose shortcomings are well documented in the book. Lastly, I will argue that Iovănel unwillingly describes several of the most notable shifts in the “regimes of relevance” (Galin Tihanov) that literature has undergone from the communist period to contemporary times.
The partition of British India in 1947 and the Bangladesh liberation war of 1971 witnessed violence that changed the cartography of the Indian subcontinent. This article explores a connecting thread between the history of violence during these epochal events and the commonality that both were followed by a conspicuous silence in the official historiography. It probes the disjuncture in the unreconciled history where silences corroborate official historiography and the unhealed wounds of victims of violence can be traced in the literary historiography produced by Sorayya Khan. This article is an analysis of her thematic choices and her treatment while writing about the victims of nationalist violence and its perpetrators. It examines her relentless effort to break this collective amnesia and silence of a society that witnessed, violated, massacred, and assaulted millions of its citizens to secure its borders. Her writing needs attention as it fills silent gaps in the historiography of Pakistan, and unlike most of the writers, she challenges the pervasive perception of men as heroic soldiers or perpetrators of violence and women as victims. She posits women as agents for breaking the silence over violence and thereby revises the official historiography.
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