1952
DOI: 10.1007/bf03397648
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Solidification Mechanism of Steel Ingots

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1954
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Cited by 7 publications
(9 citation statements)
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“…Later Pellini [14] developed his strain theory of hot tearing, which proposed that hot tearing is a straincontrolled phenomenon. Strains are concentrated in the hot spots of castings during solidification.…”
Section: Theories Of Hot Tearingmentioning
confidence: 99%
See 1 more Smart Citation
“…Later Pellini [14] developed his strain theory of hot tearing, which proposed that hot tearing is a straincontrolled phenomenon. Strains are concentrated in the hot spots of castings during solidification.…”
Section: Theories Of Hot Tearingmentioning
confidence: 99%
“…[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] The early theories were based on stress and strain, [12,13,14] and the subsequent theories considered the role of the liquid film in the semisolid metal during solidification. [15,16,17] In 1981, Hunt and Durans [18] pioneered the analysis of hot tearing as two different events of hot-tear nucleation and growth, and found that it was not possible to initiate a tear in a clean material in the absence of a nucleus (inclusion).…”
Section: Theories Of Hot Tearingmentioning
confidence: 99%
“…Although in most works hot tearing is considered as a phenomenon linked to the inadequate compensation by melt flow of solidification shrinkage in the presence of thermal stresses, there are more factors that could be involved in the formation of cracks at supersolidus temperatures. From many studies [1][2][3][4][5][6][7][8] started already in the 1950s, and reviewed by Novikov [9] and Sigworth, [10] it appears that hot tears initiate above the solidus temperature and propagate in the interdendritic liquid film. In the course of solidification, the liquid flow through the mushy zone decreases until it becomes insufficient to compensate for the solidification shrinkage at which point the cavities (pores) are formed.…”
Section: Introduction: Mechanisms Of Hot Tearingmentioning
confidence: 99%
“…These early theories emphasize stress accommodation and healing (filling of incipient tears with the interdendritic liquid before full solidification is reached). The strain theory of Pellini [5,6] postulates that hot tearing is a strain-controlled phenomenon occurring during the film stage, when the interlocking dendrites are surrounded by a thin liquid film in which strain accumulation resulting from shrinkage causes tearing of the dendrites (Figure 1). Nonequilibrium solidification and segregation increase hot tearing by increasing the film stage time and the consequent strain accumulation.…”
Section: A Theories Of Hot Tearingmentioning
confidence: 99%
“…[1] Theories developed to explain the complex mechanism of hot tearing [2][3][4][5][6][7][8] can be classified into (1) stress-and-strain theories [3][4][5][6] and (2) liquid film theories. [7,8] According to the stress theories, hot tearing occurs as a result of stress buildup in the solidifying metal due to the volume contraction, b, associated with the liquid-tosolid phase change.…”
Section: A Theories Of Hot Tearingmentioning
confidence: 99%