1982
DOI: 10.1007/bf02643394
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Electron Microscopic Analysis of Heterogeneous Precipitates in Hastelloy C-276

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Cited by 93 publications
(45 citation statements)
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“…In the earlier papers, p phase had not been named; it was called the Ni7Mos-type phase. By the time of the Raghavan et al (1982) paper, this phase had been identified as p. The presence of carbides is also consistent with previously published results for C-276 (Raghavan et al 1982, Conclusions Section). The observance of LRO after aging between 427°C and 593°C is consistent with previously published occurrences of LRO in C-276 and in Alloy 22 (Tawancy et al 1983, p.40, 1 4; Rebak and Koon 1998, Figure 9 and Conclusions Section, point 5).…”
Section: Phase Identification In Alloy 22supporting
confidence: 79%
“…In the earlier papers, p phase had not been named; it was called the Ni7Mos-type phase. By the time of the Raghavan et al (1982) paper, this phase had been identified as p. The presence of carbides is also consistent with previously published results for C-276 (Raghavan et al 1982, Conclusions Section). The observance of LRO after aging between 427°C and 593°C is consistent with previously published occurrences of LRO in C-276 and in Alloy 22 (Tawancy et al 1983, p.40, 1 4; Rebak and Koon 1998, Figure 9 and Conclusions Section, point 5).…”
Section: Phase Identification In Alloy 22supporting
confidence: 79%
“…At temperatures above approximately 600°C up to at least 760°C, Tetrahedrally ClosePacked or TCP phases [1] (primarily the Mo-rich µ and P phases) form [2][3][4][5][6]16,17,19]. Because Mo provides the Ni-Cr-Mo alloys with resistance to localized corrosion, segregation of the Mo to the TCP phases can cause a depletion of Mo in the matrix and lead to localized corrosion [2,3,16,17].…”
Section: Tetrahedrally Close-packed Phasesmentioning
confidence: 99%
“…(12,13) Nas superligas da classe Ni-Cr-Mo, que têm sido empregadas na deposição de revestimentos resistentes à corrosão sobre a superfície de equipamentos nas indús-trias químicas, petroquímicas, nuclear e de petróleo e gás, verificam-se a formação de fases secundárias do tipo topologicamente compactas (topologically close-packed TCP) ricas em molibdênio, tais como a fase P, a fase µ e a fase σ. (14)(15)(16) Estas fases têm sido reportadas na literatura como prejudiciais às propriedades mecânicas e de resistência à corrosão das ligas de níquel. (17,18) Em ligas cuja presença de fases secundárias tem efeito sobre as suas características, a interface matriz/ precipitado passa a ter uma grande relevância nos fenô- …”
Section: Introductionunclassified