Effects of Triple Junction and Grain Boundary Characters on the Morphology of Carbide Precipitation in Alloy 690

doi:10.11900/0412.1961.2017.00141

Acta Metall Sin

2018, Vol. 54

Issue (3): 404-410 DOI: 10.11900/0412.1961.2017.00141

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Effects of Triple Junction and Grain Boundary Characters on the Morphology of Carbide Precipitation in Alloy 690

Xirong LIU, Kai ZHANG, Shuang XIA, Wenqing LIU, Hui LI(

)

Key Laboratory for Microstructures, Shanghai University, Shanghai 200444,China;

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Xirong LIU, Kai ZHANG, Shuang XIA, Wenqing LIU, Hui LI. Effects of Triple Junction and Grain Boundary Characters on the Morphology of Carbide Precipitation in Alloy 690. Acta Metall Sin, 2018, 54(3): 404-410.

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Abstract

The nickel-based Inconel Alloy 690 (Ni-30Cr-10Fe, mass fraction, %) was developed as a replacement material for Inconel Alloy 600 in the steam generator tube of pressurized water reactors nuclear power plants. Intergranular corrosion and intergranular stress corrosion cracking were the main failure reasons for steam generator tubes, which were related to the precipitation of grain boundary carbides. Hence, the precipitation of carbide at the grain boundaries and triple junctions with different characters is worthy to be studied. The morphology of carbide precipitated on grain boundaries at triple junctions with various characters in grain boundary engineering (GBE) treated Alloy 690 aged at 715 ℃ for 15 h were investigated by SEM and EBSD. The results show that, there are obvious differences in the morphology of carbides precipitated on the Σ3_c grain boundary near different types of triple junction. The size of carbide precipitated at Σ3_c grain boundary increased by the order of Σ3-Σ3-Σ9、Σ3-Σ9-Σ27、Σ3-Σ27-R、Σ3-R-R triple junctions. But the morphology of carbides precipitated at the Σ3_i and Σ9 grain boundaries was independent of the nearby triple junction characters. The precipitation morphology of carbides precipitated on the Σ27 grain boundary near the triple junction is different from that precipitated on the internal grain boundary, for example, the carbides precipitated near triple junction was more discrete and bigger than that precipitated on internal grain boundary. When the triple junction contain two random grain boundaries and one Σ3 grain boundary or Σ9 grain boundary, the size of carbide precipitated on one of random grain boundary is smaller than that of precipitated on the other one.

Key words: carbide grain boundary character triple junction grain boundary engineering Alloy 690

Received: 20 April 2017

Fund: Supported by National Key Research and Development Program of China (No.2016YFB0700401) and National Natural Science Foundation of China (No.51301103)

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	Xirong LIU
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https://www.ams.org.cn/EN/10.11900/0412.1961.2017.00141 OR https://www.ams.org.cn/EN/Y2018/V54/I3/404

Fig.1 Orientation image microscopy (OIM) maps of different grain boundary characters in the specimens solution treated at 1100 ℃ for 15 min (a), and then cold rolled 5% and recrystallization annealed at 1100 ℃ for 5 min, which is denoted as GBE specimens (b), and then ageing at 715 ℃ for 15 h (c)

Table 1 Grain boundary character distribution statistics (Palumbo-Aust criterion^[16], length fraction) and average grain size of Alloy 690 for different treatment conditions

Fig.2 Morphologies of carbide precipitated on grain boundary nearby the Σ3-Σ3-Σ9 triple junction in the specimen aged at 715 ℃ for 15 h (Insets show the corresponding OIM maps of different grain boundary characters observed by SEM. Σ3_c—coherent Σ3 grain boundary, Σ3_i—incoherent Σ3 grain boundary) (a) Σ3_c-Σ3_c-Σ9 and Σ3_i-Σ3_i-Σ9 triple junctions (b) Σ3_c-Σ3_i-Σ9 triple junction (c) Σ3_c-Σ3_c-Σ9 triple junction (d) Σ9 grain boundary

Fig.3 Morphologies of carbide precipitated on grain boundary nearby Σ3-Σ9-Σ27 and Σ3-Σ27-R triple junctions in the specimen aged at 715 ℃ for 15 h (Insets show the corresponding OIM maps of different grain boundary characters observed by SEM) (a) Σ3_c-Σ9-Σ27 triple junction (b) Σ3_i-Σ9-Σ27 triple junction (c) Σ3_c-Σ9-Σ27 triple junctions (d) Σ3_c-Σ9-Σ27, Σ3_c-Σ27-R triple junctions

Fig.4 Morphologies of carbide precipitated on grain boundary nearby Σ3(Σ9)-R-R triple junction in the specimen aged at 715 ℃ for 15 h (Insets show the corresponding OIM maps of different grain boundary characters observed by SEM)(a) Σ3_c-R-R triple junctions(b) Σ3_c-R-R and Σ3_i-R-R triple junctions(c) Σ9-R-R triple junction

[1]	Diercks D R, Shack W J, Muscara J.Overview of steam generator tube degradation and integrity issues[J]. Nucl. Eng. Des., 1999, 194: 19
[2]	Crum J R, Scarberry R C.Corrosion testing of INCONEL alloy 690 for PWR steam generators[J]. J. Mater. Energy Syst., 1982, 4: 125
[3]	Blaizot J, Chaise T, Nélias D, et al.Constitutive model for nickel alloy 690 (Inconel 690) at various strain rates and temperatures[J]. Int. J. Plast., 2016, 80: 139
[4]	Stiller K, Nilsson J O, Norring K.Structure, chemistry, and stress corrosion cracking of grain boundaries in alloys 600 and 690[J]. Metall. Mater. Trans., 1996, 27A: 327
[5]	Ahmedabadi P M, Kain V, Dangi B K, et al.Role of grain boundary nature and residual strain in controlling sensitisation of type 304 stainless steel[J]. Corros. Sci., 2013, 66: 242
[6]	Lee T H, Suh H Y, Han S K, et al.Effect of a heat treatment on the precipitation behavior and tensile properties of alloy 690 steam generator tubes[J]. J. Nucl. Mater., 2016, 479: 85
[7]	Ma Y C, Li S, Hao X C, et al.Research on the carbide precipitation and chromium depletion in the grain boundary of alloy 690 containing different contents of nitrogen[J]. Acta Metall. Sin., 2016, 52: 980(马颖澈, 李硕, 郝宪朝等. 2种N含量不同的690合金中晶界碳化物及晶界Cr贫化研究 [J]. 金属学报, 2016, 52: 980)
[8]	Kai J J, Yu G P, Tsai C H, et al.The effects of heat treatment on the chromium depletion, precipitate evolution, and corrosion resistance of INCONEL alloy 690[J]. Metall. Mater. Trans., 1989, 20A: 2057
[9]	Trillo E A, Murr L E.Effects of carbon content, deformation, and interfacial energetics on carbide precipitation and corrosion sensitization in 304 stainless steel[J]. Acta Mater., 1999, 47: 235
[10]	Lim Y S, Kim J S, Kim H P, et al.The effect of grain boundary misorientation on the intergranular M23C6 carbide precipitation in thermally treated Alloy 690[J]. J. Nucl. Mater., 2004, 335: 108
[11]	Hu R, Bai G H, Li J S, et al.Precipitation behavior of grain boundary M23C6 and its effect on tensile properties of Ni-Cr-W based superalloy[J]. Mater. Sci. Eng., 2012, A548: 83
[12]	Li H, Xia S, Zhou B X, et al.Evolution of carbide morphology precipitated at grain boundaries in Ni-based Alloy 690[J]. Acta Metall. Sin., 2009, 45: 195(李慧, 夏爽, 周邦新等. 镍基690合金时效过程中晶界碳化物的形貌演化 [J]. 金属学报, 2009, 45: 195)
[13]	Li H, Xia S, Zhou B X, et al.C-Cr segregation at grain boundary before the carbide nucleation in Alloy 690[J]. Mater. Charact., 2012, 66: 68
[14]	Li H, Xia S, Zhou B X, et al.Study of carbide precipitation at grain boundary in nickel base Alloy 690[J]. Acta Metall. Sin., 2011, 47: 853(李慧, 夏爽, 周邦新等. 镍基690合金中晶界碳化物析出的研究 [J]. 金属学报, 2011, 47: 853)
[15]	Li H, Xia S, Zhou B X, et al.The growth mechanism of grain boundary carbide in Alloy 690[J]. Mater. Charact., 2013, 81: 1
[16]	Palumbo G, Aust K T, Lehockey E M, et al.On a more restrictive geometric criterion for "Special" CSL grain boundaries[J]. Scr. Mater., 1998, 38: 1685
[17]	Xia S, Zhou B X, Chen W J.Effect of single-step strain and annealing on grain boundary character distribution and intergranular corrosion in Alloy 690[J]. J. Mater. Sci., 2008, 43: 2990
[18]	Liu T G, Xia S, Li H, et al.The highly twinned grain boundary network formation during grain boundary engineering[J]. Mater. Lett., 2014, 133: 97
[19]	Xia S, Zhou B X, Chen W J.Effect of single-step strain and annealing on grain boundary character distribution and intergranular corrosion in Alloy 690[J]. J. Mater. Sci., 2008, 43: 2990
[20]	Li H, Ma J R, Liu X R, et al.Morphology Evolution of grain boundary carbides in highly twinned Inconel Alloy 600[J]. Mater. Sci. Forum, 2017, 879: 1111
[21]	Gertsman V Y.Coincidence site lattice theory of multicrystalline ensembles[J]. Acta Crystallogr., 2001, 57A: 649
[22]	Baik S I, Olszta M J, Bruemmer S M, et al.Grain-boundary structure and segregation behavior in a nickel-base stainless alloy[J]. Scr. Mater., 2012, 66: 809
[23]	Li H, Xia S, Zhou B X, et al.The dependence of carbide morphology on grain boundary character in the highly twinned Alloy 690[J]. J. Nucl. Mater., 2010, 399: 108
[24]	Trillo E A, Murr L E.A TEM investigation of M23C6 carbide precipitation behaviour on varying grain boundary misorientations in 304 stainless steels[J]. J. Mater. Sci., 1998, 33: 1263
[25]	Gokon N, Kajihara M.Experimental determination of boundary energies of Σ9[110] asymmetric tilt boundaries in Cu[J]. Mater. Sci. Eng., 2008, A477: 121
[26]	Randle V, Coleman M, Waterton M.The role of Σ9 boundaries in grain boundary engineering[J]. Metall. Mater. Trans., 2011, 42A: 582
[27]	Randle V.Role of grain boundary plane in grain boundary engineering[J]. Mater. Sci. Technol., 2010, 26: 774

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