Program of the 146th ISIJ Meeting (October 11-13, 2003)
Discussion Session Only
Current Advance in Materials and Process, Vol.16, No.4
High Temperature Processes
Study on coking mechanism of non- or poorly-coking coals and new evaluation method of coke strength
01 A novel test method for the mechanical properties of cokes M.Sakai … 720
02 AModeling of caking behavior of single coal particle H.Aoki … 724
03 Influence of coal blend and heating rate on the pore formation of coke K.Sakanishi … 728
04 Examination of carbonization behavior of coals and their extracts H.Nakagawa … 732
05 Study on local structure of cokes and semi-cokes using hand-picking method T.Takarada … 736
06 Development of the innovative cokemaking process(SCOPE21) K.Nishioka … 740
07 Differentiation of coking coals and non-coking coals by high temperature heat treatment of coals J.Ozaki … 744
08 Analysis of carbon structure in cokes at molecular level T.Kyotani … 748
09 Chemical structural features of the solid material obtained at the early step of coke production K.Kidena … 752
of dispersed
materials T.Yamada… 32
10 Change in the aggregate structure of coal during heat treatment H.Kumagai … 756
11 Fusibility behavior of coal blends including low-quality coal using viscoelastic measurements T.Takanohashi … 760
Control of physical limitation on blast furnace operation for minimizing exhaust CO2 gas
12 The subject and control against unsteady phenomena forcing functional disorder on blast furnace performance Y.Matsui … 764
13 Factors for the slip in the shaft of blast furnace and the control H.Takahashi … 768
14 Analysis of granular flows in blast furnace using particle element simulation J.Hidaka … 772
15 Prediction of stable flow in raceway using numerical simulation for gas and granular motions S.Yuu … 776
16 Development of the visualizing information technique of unstable behavior of blast furnace process S.Matsuzaki … 780
17 Clarification of liquid flow behavior in lower part of blast furnace under high rate injection of pulverized coal and its control M.Sato … 784
18 Effects of packed structure and liquid properties on liquid flow behavior in cohesive zone of blast furnace Y.Toyoda … 788
19 Influence of void fraction and initial conditions with dry and wet beds on liquid hold-ups T.Usui … 792
20 Effects of the coke free space on the hearth drainage efficiency and casting imbalance T.Nouchi … 796
21 Effect of packed bed structure on drainage rate and residual amount of slag and metal in blast furnace hearth K.Nishioka … 800
22 Numerical analysis of powder behavior in blast furnace taking into account powder deposition in packed bed H.Nogami … 804
Recent development and trend of inclusion control
23 Thermodynamics for composition control of inclusions K.Morita … 808
24 Thermodynamics of Aluminum-deoxidation K.Wasai … 812
25 Behavior of inclusions during solidification H.Ohta … 816
26 Present status on reoxidation of molten steel and nozzle clogging in continuous casting process K.Sasai … 820
27 Recent research and technologies on incluison removal in ultra low carbon steel Y.Miki … 824
28 Morphology control of sulfide in resulfurised steel T.Nishi … 828
29 Microstructure control and toughness improvement in weld and HAZ of steels by the use of inclusions T.Koseki … 832
30 Steelmaking process of high cleanliness bearing steels and their future development Y.Kato … 836
M.Sasaki… 256
31 Effect of slag on composition control of inclusions in steel tire cord S.Kimura … 840
32 Technology to control inclusions in stainless steels and high Ni alloys H.Todoroki … 844
Current Advance in Materials and Process, Vol.16, No.5
Production and Utilization Technology
Improvement of surface defects in steel sheet rolling
33 (Invited Lecture)Steel sheet quality status and future action M.Ide … 1112
34 (Invited Lecture)The present condition and the measure of crack generating in the press shop T.Egawa … 1115
35 (Invited Lecture)The analysis of surface defects which occur in the aluminum sheets production line N.Shinano … 1117
36 (Keynote Lecture)Simulation for deformation of surface micro defects in plate rolling T.Ishikawa … 1121
37 Mechanism of scale related surface defects in hot rolled steel sheets H.Okada … 1125
38 Formation mechanism of seam defects on strip edge in ferritic stainless steel T.Hiruta … 1129
39 Investigation of decrease in seam defects in plate rolling using 3 dimensional rigid plastic finite element method T.Higo … 1133
Newest Tendency in Hot Rolling Roll Technology
40 (Keynote Lecture)Transition of work roll in hot rolling A.Azushima … 1137
41 Application of CPC high speed steel work roll at oversea T.Koie … 1141
42 Surface deterioration of hot work rolls by thermal fatigue T.Kudo … 1142
43 Wear and thermal shock properties of Ni-hard cast iron roll having MC carbide and graphite K.Ichino … 1146
44 Development of forged high-speed-steel roll for shaped steel H.Takigawa … 1150
45 Development of composite cemented carbide roll for long shape product rolling T.Ohata … 1154
Innovative tube hydro-forming technologies of automotive structural parts for today and future
46 (Invited Lecture)Perspectives of tube hydroforming of automotive components with light weight and high rigidity K.Manabe … 1158
47 (Invited Lecture)Innovative production engineering for overcome global-scale competitions S.Ishihara … 1162
48 (Invited Lecture)Application of tube hydroforming to automotive parts T.Hamaguchi … 1166
49 (Invited Lecture)Development of hydroforming simulation technology S.Takahashi … 1170
50 (Invited Lecture)Structural design study for hydro-form H.Ono … 1174
51 (Invited Lecture)New trends of tube forming technology and machines for automotive components K.Kato … 1176
52 (Invited Lecture)The solution for an economical HYFO production line(SOUTUBE) D.Wenk … 1180
Current Advance in Materials and Process, Vol.16, No.6
Microstructure and Properties of Materials
Environmentally conscious galvanized steel - corrosion mechanism and life design -
53 Initial stage of localized corrosion on Al-9 mass% Si coated steels with photon rupture - effect of potential - M.Sakairi … 1250
54 Electrochemical characteristics of ZnO thin films formed by Ion-beam-sputter deposition N.Hara … 1254
55 Atmospheric corrosion products on Zinc- coated steels- QCM and Raman spectroscopy M.Matsuda … 1258
56 Surface analysis of galvanized steel in corrosion process H.Katayama … 1259
57 A protective film component amang corrosion products on galvanized steels evaluated by solubility calculations H.Tamura … 1263
58 Effect of Zinc corrosion products on oxygen reduction reaction on Zinc electrode A.Nishikata … 1265
59 Effect of relative humidity on and chemical composition and thickness of water film T.Shinohara … 1266
60 Indoor corrosion of Zinc and Zinc alloy coated steel sheet M.Matsumoto … 1270
61 Influence of alloying elements on formation and structure of Zinc rust T.Nakayama … 1274
62 Effect of microstructure on the initial stage of corrosion of Mg added hot-dip Zn-Al coated steel sheet A.Takahashi … 1276
63 Corrosion behavior of Mg containing phosphated electrogalvanized steel sheet K.Hamahara … 1280
Fabrication and properties of ultrafine- or nano- grained metallic materials by severe plastic deformation
64 (Invited Lecture)Microstructural evolution during plastic deformation of metals Xiaoxu Huang … 1284
65 Fine-grained structure evolution in BCC/FCC stainless steels under multiaxial forging conditions T.Sakai … 1288
66 Microstructure of ultrafine grained steel produced by repetitive cold side extrusion A.Azushima … 1292
67 Controlling factor of yield strength in ultra fine-grained steels with fine dispersed Cu particles M.Matsuki … 1296
68 Formation of ultrafine grained structure in carbon steels without severe or heavy plastic deformation N.Tsuji … 1299
69 Improvement of fatigue properties by ultrafine grained microstructure in steel plate T.Ishikawa … 1303
70 (Invited Lecture)Microstructures and mechanical properties of structural materials fabricated by equal channel angular pressing Dong Hyuk Shin … 1307
71 Grain refinement of plate samples using equal-channel angular pressing Z.Horita … 1311
72 Structure development of copper single crystal deformed by equal channel angular pressing J.Fushimi … 1314
73 TEM/3DAP characterizations of severely deformed two phase nanostructures K.Hono … 1318
74 Nanocrystallization of steels by various severe plastic deformation processes M.Umemoto … 1321
75 Ultra-fine grain formation and related phase transformation in mechanically milled austenitic stainless steel powders K.Ameyama … 1325