The effects of Al addition on austenite grain growth and particle characterization in heat-affected zone during high-heat-input welding for Mg- deoxidized steel plates without Al (0Al) and with 0.02wt-% Al (200Al) were studied. Austenite grains grow intensively in 1300–1400 °C and TiN particles play the role on inhibiting grain growth. The number density and average size of submicron and nanometer particles decreases and increases, respectively with Al addition. There are critical dissolved particle sizes of 1.84, 3.18 and 11.64 nm at 1300, 1350 and 1400 °C, respectively. The dissolution of nanoparticles in 0Al larger than that in 200Al causes the faster reduction rate of pinning force and greater increase of grain growth rate in 0Al. The effect of submicron particle coarsening on austenite grain growth is non-obvious because the amount of submicron particles is less than that of nanoparticles and the submicron particle coarsening is a comparatively slow process.
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References
1.
WangRZYangJXuLY.Improvement of heat-affected zone toughness of steel plates for high heat input welding by inclusion control with Ca deoxidation. Metals. 2018;8(11):946.
2.
YangJZhuKWangRZet al.Improving the toughness of heat affected zone of steel plate by use of fine inclusion particles. Steel Res Int. 2011;82(5):552–556.
3.
OgibayashiS.Advances in technology of oxide metallurgy. Nippon Steel Tech Rep. 1994;61:70–76.
4.
YangJXuLYZhuKet al.Improvement of HAZ toughness of steel plate for high heat input welding by inclusion control with Mg deoxidation. Steel Res Int. 2015;86(6):619–625.
5.
XuLYYangJWangRZet al.Effect of Mg content on the microstructure and toughness of heat-affected zone of steel plate after high heat input welding. Metall Mater Trans A. 2016;47(7):3354–3364.
6.
XuLYYangJWangRZet al.Effect of Mg addition on formation of intragranular acicular ferrite in heat-affected zone of steel plate after high-heat-input welding. J Iron Steel Res Int. 2018;25(4):433–441.
7.
XuLYYangJWangRZet al.Effect of welding heat input on microstructure and toughness of heated-affected zone in steel plate with Mg deoxidation. Steel Res Int. 2017;88(12):1700157.
8.
WenBSongB.In situ observation of the evolution of intragranular acicular ferrite at Mg-containing inclusions in 16Mn steel. J Manuf Sci Prod. 2013;13(1–2):61–72.
9.
ZhuKYangJWangRZet al.Effect of Mg addition on inhibiting austenite grain growth in heat affected zones of Ti-bearing low carbon steels. J Iron Steel Res Int. 2011;18(9):60–64.
10.
KimHSChangCHLeeHG.Evolution of inclusions and resultant microstructural change with Mg addition in Mn/Si/Ti deoxidized steels. Scr Mater. 2005;53(11):1253–1258.
11.
KojimaAKiyoseAUemoriRet al.Super high HAZ toughness technology with fine microstructure imparted by fine particles. Nippon Steel Tech Rep. 2004;90:292–413.
12.
LinCKSuYHHwangWSet al.On pinning effect of austenite grain growth in Mg-containing low-carbon steel. Mater Sci Tech. 2018;34(5):596–606.
13.
ZhuKYangZG.Effect of magnesium on the austenite grain growth of the heat-affected zone in low-carbon high-strength steels. Metall Mater Trans A. 2011;42(8):2207–2213.
14.
ShenYWanXLLiuYet al.The significant impact of Ti content on microstructure-toughness relationship in the simulated coarse-grained heated-affected zone of high-strength low-alloy steels. Ironmak Steelmak. 2019;46(6):584–596.
15.
MoonJKimSJeongHet al.Influence of Nb addition on the particle coarsening and microstructure evolution in a Ti-containing steel weld HAZ. Mat Sci Eng A. 2007;454–455:648–653.
16.
SongMMHuCLSongBet al.Effect of Ti-Mg treatment on the impact toughness of heat affected zone in 0.15% C–1.31% Mn steel. Steel Res Int. 2018;89(3):1700355.
17.
MoonJKimSLeeJet al.Limiting austenite grain size of TiN-containing steel considering the critical particle size. Scr Mater. 2007;56(12):1083–1086.
18.
KarmakarAKunduSRoySet al.Effect of microalloying elements on austenite grain growth in Nb-Ti and Nb-V steels. Mater Sci Tech. 2014;30(6):653–664.
19.
FuLMWangHRWangWet al.Austenite grain growth prediction coupling with drag and pinning effects in low carbon Nb microalloyed steels. Mater Sci Tech. 2011;27(6):996–1001.
20.
MaalekianMRadisRMilitzerMet al.In situ measurement and modelling of austenite grain growth in a Ti/Nb microalloyed steel. Acta Mater. 2012;60(3):1015–1026.
21.
LiuZYBaoYPWangMet al.Austenite grain growth of medium-carbon alloy steel with aluminum additions during heating process. Int J Min Met Mater. 2019;26(3):282–290.
22.
MaropoulosSKaragiannisSRidleyN.Factors affecting prior austenite grain size in low alloy steel. J Mater Sci. 2006;42(4):1309–1320.
23.
ManoharPADunneDPChandraTet al.Grain growth predictions in microalloyed steels. ISIJ Int. 1996;36(2):194–200.
24.
ShaQYSunZQ.Grain growth behavior of coarse-grained austenite in a Nb-V-Ti microalloyed steel. Mat Sci Eng A. 2009;523(1–2):77–84.
25.
BepariMA.Effects of second-phase particles on coarsening of austenite in 0.15 Pct carbon steels. Metall Mater Trans A. 1989;20(1):13–16.
26.
OhtaHInoueRSuitoH.Effect of TiN precipitates on austenite grain size in Fe-1.5% Mn-0.12% Ti-Si (<1.1%)-C (0.05 and 0.15%) alloy. ISIJ Int. 2008;48(3):294–300.
27.
TomitaYSaitoNTsuzukiTet al.Improvement in HAZ toughness of steel by TiN-MnS addition. ISIJ Int. 1994;34(10):829–835.
28.
WanXZhouBNuneKCet al.In-situ microscopy study of grain refinement in the simulated heat-affected zone of high-strength low-alloy steel by TiN particle. Sci Technol Weld Joining. 2017;22(4):343–352.
29.
MoonJKimSLeeJet al.Coarsening behavior of the (Ti, Nb)(C, N) complex particle in a microalloyed steel weld heat-affected zone considering the critical particle size. Metall Mater Trans A. 2007;38(11):2788–2795.
YanWShanYYYangK.Effect of TiN inclusions on the impact toughness of low-carbon microalloyed steels. Metall Mater Trans A. 2006;37(7):2147–2158.
32.
CabreraJMOmarAAPradoJM.Abnormal grain growth in a medium-carbon microalloyed steel. J Mater Sci. 1996;31(5):1303–1309.
33.
GladmanT.Abnormal grain growth during the heat treatment of steel. Mater Sci Forum. 1992;94-96:113–128.
34.
FernandezJIllescasSGuilemanyJM.Effect of microalloying elements on the austenitic grain growth in a low carbon HSLA steel. Mater Lett. 2007;61(11–12):2389–2392.
35.
FujiyamaNNishibataTSekiAet al.Austenite grain growth simulation considering the solute-drag effect and pinning effect. Sci Technol Adv Mat. 2017;18(1):88–95.
36.
DuJStrangwoodMDavisCL.Effect of TiN particles and grain size on the charpy impact transition temperature in steels. J Mater Sci Technol. 2012;28(10):878–888.
37.
MoonJLeeCUhmSet al.Coarsening kinetics of TiN particle in a low alloyed steel in weld HAZ: considering critical particle size. Acta Mater. 2006;54(4):1053–1061.
38.
XuLYYangJWangRZ.Influence of Al content on the inclusion-microstructure relationship in the heat-affected zone of a steel plate with Mg deoxidation after high-heat-input welding. Metals. 2018;8(12):1027.
39.
InoueKOhnumaIOhtaniHet al.Solubility product of TiN in austenite. ISIJ Int. 1998;38(9):991–997.
40.
DumitrescuLFSHillertM.Reassessment of the solubility of TiC and TiN in Fe. ISIJ Int. 1999;39(1):84–90.
41.
BoxGEPHunterWGHunterJSet al.Statistics for experimenters. Technometrics. 1978;21(3):15–23.
42.
PothsRMHigginsonRLPalmiereEJet al.Complex precipitation behaviour in a microalloyed plate steel. Scr Mater. 2001;44(1):147–151.
43.
CravenAJHeKGarvieLAet al.Complex heterogeneous precipitation in titanium-niobium microalloyed Al-killed HSLA steels I. (Ti, Nb)(C, N) particles. Acta Mater. 2000;48(15):3857–3868.
GladmanT.The physical metallurgy of microalloyed steels. London: Maney; 1997.
46.
CharleuxMPooleWJMilitzerMet al.Precipitation behavior and its effect on strengthening of an HSLA-Nb/Ti steel. Metall Mater Trans A. 2001;32(7):1635–1647.
47.
CrooksMJGarratt-ReedAJVander SandeJBet al.Precipitation and recrystallization in some vanadium and vanadium-niobium microalloyed steels. Metall Mater Trans A. 1981;12(12):1999–2013.
48.
PorterDAEasterlingKE.Phase transformations in metals and alloys. London: Chapman & Hall; 1996.
49.
WangHRWangW.Coupled model for particle dissolution and coarsening in microalloyed steels. Mater Sci Tech. 2007;23(11):1305–1308.
50.
TianQRWangGCShangDLet al.In situ observation of the precipitation, aggregation, and dissolution behaviors of TiN inclusion on the surface of liquid GCr15 bearing steel. Metall Mater Trans B. 2018;49(6):3137–3150.
51.
ManoharPAFerryMChandraT.Five decades of the Zener equation. ISIJ Int. 1998;38(9):913–924.
52.
AshbyMFEbelingR.On the determination of the number, size, spacing, and volume fraction of spherical second-phase particles from extraction replicas. Trans Met Soc AIME. 1966;236(10):1396–1404.
53.
GómezMMedinaSFVallesP.Determination of driving and pinning forces for static recrystallization during hot rolling of a niobium microalloyed steel. ISIJ Int. 2005;45(11):1711–1720.
54.
WangQFZhangCYLiRXet al.Characterization of the microstructures and mechanical properties of 25CrMo48 V martensitic steel tempered at different times. Mat Sci Eng A. 2013;559(Jan 1):130–134.
