Program of the 141 st ISIJ Meeting (March 28-30, 2001)
Discussion Session Only

Current Advance in Materials and Process, Vol.14 ,No.1
High Temperature Processes
Recent Progress and Future Subjects on Quality Control in Steel Continuous Casting
1   Behavior of mold flux in continuous casting mold K.Watanabe… 2
2   Effect of spouting stream on washing blowholes at slab subsurface by in-mold electromagnetic stirring  M.Morishita… 6
3   Technololgy of steel flow control in a mold of high-speed slab caster and its subject  J.Kubota… 10
4   Simulation of flow in CC process and quality assessment of casts  T.Toh… 13
5   Control of early stage of solidification in continuous casting by means of mold oscillation  Y.Itoh… 15
6   Strand deformation and the mechanism of unsteady bulging during continuous casting of slab  J.D.Lee… 17
7   High speed continuous casting technology of hypoperitectic steel slabs in medium thickness  M.Hanao… 21
8   Evaluation of internal crackings by 3-dimensional deformation analysis of continuously cast steel slab in multi roll-spans
    K.Nakayama… 23
9   Prevention of slab surface transverse cracking by microstructure control  T.Kato… 27
10  Numerical modeling of columnar to equiaxed transition taking account of molten steel flow  H.Harada… 29
11  Behavior of non-metallic inclusions during solidification process  K.Nakajima… 31

Electromagnetic Processing of Materials toward the Next Century
-Interim Report of the Research Group on Advanced Application of Electromagnetic Processing of Materials-
12  Prospect of application of electromagnetic processing of materials(EPM)to refining technologies  S.Takeuchi… 35
13  Wave excitation in a molten metal by electromagnetic force and its use for refinement of solidified structure  K.Iwai… 38
14  Model experiment on separation of nonmetallic inclusion from liquid steel in high frequency magnetic field  K.Takahashi… 42
15  Mixing and separation process between two liquids by applying Lorentz force  T.Kozuka… 46
16  Outline of national project on application of electromagnetic force to continuous casting of steel  H.Tozawa… 48
17  Materials processing using a high magnetic field  S.Asai… 52
18  Advances in high magnetic field science for materials processing  I.Mogi… 56
19  Control of solidified structure by a magnetic field  H.Yasuda… 58
20  Numerical analysis of quasi zero-gravity convection due to magnetizing force for air in a cylindrical
    enclosure heated from below  H.Ozoe… 62
21  Thermal flows in the CZ method applied LES of turbulent flow  T.Tanahashi… 66

Current Advance in Materials and Process, Vol.14 ,No.2
Production and Utilization Technology
Development and Welding Techniques of Corrosion Resistance Steels
22  SABI(rust)chemistry and weathering steel(Macroscopic viewpoint)  T.Misawa… 262
23  Nucleation and growth of rust(Micro-point of view)  H.Masuda… 266
24  Development and welding of weathering steel for coastal use  S.Suzuki… 270
25  Development of welding consumables for new weathering steel  T.Kasuya… 274
26  Mechanical properties of weld metals of low carbon 13%Cr containing martensitic stainless steels  S.Endo… 278
27  Creation of high nitrogen-bearing stainless steel and its localized corrosion resistance  Y.Katada… 282
28  Weldabilities of high nitrogen-bearing stainless steels  M.Ogawa… 286
29  High-temperature corrosion problem and its prevention of materials for waste treatment plants  M.Yoshiba… 290
30  Welding technology for corrosion resistant stainless steels for smokestacks  H.Inoue… 294
31  Corrosion resistance of laser welded duplex stainless steels  T.Omura… 298
32  Welding of duplex stainless steels(Prediction of austenite fraction in weld metals)  K.Yasuda… 302
33  Corrosion guide for new weathering steel  T.Nishimura… 306

Recent Progress and Trend in Manufacturing and Forming Technology of Rod and Wire
34  FE-simulation coupled with microstructure models-a common tool for process design?  R.Kopp… 310
35  Improving quality of rolled rods by deformation and transformation modeling  R.Shivpuri… 311
36  Modelling the behaviour of oxide scale in hot rolling  J.Beynon… 315
37  FE-based analysis for the prediction of inner microstructure in hot forming  J.Yanagimoto… 319
38  Simulation system of deformation and temperature in multipass bar,wire and shape rolling  K.Komori… 323
39  Mathematical modeling for rolling load and microstructure evolution in hot strip rolling  T.Morimoto… 325
40  Criterion on the grain coarsening behaviour of carbon steels in hot bar rolling  M..Akiyama… 329
41  Effect of rolling condition on the microstructure and mechanical properties of the wire  M.Shinkawa… 333
42  Modeling,control system design and control technologies of dimension and microstructure in bar and wire rod rolling  Y.Noguchi… 337
43  The change of microstructure during continuous rolling by 3-rolls block mill  N.Noriki… 341

Pipe and Tube Manufacturing Technology in the 20th Century and the Outlook Therefore in the 21st Century
44  Current and forecasting technology developed in pipe and tube manufacturing  J.Ohwaki… 345
45  A few remarks on production technology of ERW steel tube/pipe  Y.Onoda… 349
46  Advantages and disadvantages of ultrafine-gained steels unveiled in the STX- 21 project  K.Nagai… 353
47  Development of fine microstructure steel tube with high strength and excellent formability  T.Toyooka… 357
48  Recent status of tube forming technology and expectations to tubes for forming  S.Fuchizawa… 361
49  Application of tube hydroforming for vehicle,and future study  S.Majima… 365
50  Application of high-grade steelpipe to gas pipeline and problems to be resolved  M.Toyoda… 369
51  Present situation and technical issues of Sakhalin to Japan gas pipeline project  Y.Shimura… 373
52  Corrosion properties of pipes and tubes  J.Sakai… 377
53  Application of high performance steel and steel tube of bridge  T.Hosaka… 381
54  Progress in manufacturing technology of large diameter line pipe  Y.Terada… 385
55  Recent development of high strength line pipes  A.Yamamoto… 389
56  Weldable martensitic stainless steel pipe by laser welding  S.Kusaka… 393

Structural Control of Steels and their Properties Starting from Solidification
57  Solidification structure and austenitic grain structure in continuous casting  Y.Ueshima… 396
58  Possibilities and problems in rolling processes for improvement in qualities of steel products  S.Hattori… 398
59  Significance of austenite grain size for ultrafine-grained ferrite structure  S.Torizuka… 402
60  Strip casting at IBF-state of the art  R.Kopp… 406
61  Microstructure controll by melt direct rolling  Y.Saito… 408
62  Mechanism of structure development in austenitic stainless steel weld metals solidified with primary ferrite  H.Inoue… 412
63  Effect of oxide composition on solidification structure of Ti added ferritic stainless steel  H.Fujimura… 416
64  Hot deformation and control of ferrite microstructure in Ti-killed C-Mn steels  J.D.Shim… 420

Current Advance in Materials and Process, Vol.14 ,No.3
Microstructure and Properties of Materials
Mechanism of Ultra Fine Grain Refinement in Metallic Materials
65  Dynamic evolution process of ultra fine-grained structure under large strain deformation-continuous and
    discontinuous dynamic recrystallization  T.Sakai… 470
66  Formation process of fine-grained structure in equal-channel angular pressing  Z.Horita… 474
67  Mechanism of ultrafine grained low carbon steel by repetition shear deformation process  A.Azushima… 478
68  Ultra-refinement of ferrite grains in high quench-hardenability steels by reheating after warm deformation
    in austenite region  Y.Adachi… 482
69  Influence on the ductility of microstructure in fine grained steels through heavy deformed α/γ dual phase region  K.Makii… 486
70  Fine-grained structures due to development of shear bands in austenitic stainless steel  T.Morikawa… 490
71  Formation mechanism of ultrafine grained structure during intense straining of ferritic steels  N.Tsuji… 494
72  Ultra-fine grain refinement of a heavily deformed SUS316L powder  H.Fujiwara… 498
73  Mechanism of microstructural formation in ultra fine-grained steel fabricated through mechanical milling treatment  H.Hidaka… 502
74  Ultra refinement of austenite grain size through reversion due to adiabatic deformation heating  T.Yokota… 505
75  Mechanical properties and characteristics of fracture toughness of fine-grained heavy plate by TMCP  T.Yamashita… 509

Strength and Oxidation and Corrosion Resistance of Heat Resistant Materials
76  Drop in rupture strength after long-term creep tests of ferritic steel with tempered martensitic lath structure  K.Maruyama… 513
77  Effect of creep strain on the life consumption ratio,hardness and microstructural changes in a Mod.9Cr-1Mo steel  T.Endo… 517
78  Analysis of creep property degradation of W alloyed 9%Cr ferritic steel by nanoindentation test  S.Komazaki… 521
79  Properties of 18Cr-9Ni-3Cu-Nb,N steel tube after long term exposure in a power boiler  Y.Sawaragi… 525
80  High-temperature creep strength and oxidation- resistance of high-Cr ferritic heat resistant steels for 650°C plant  F.Abe… 527
81  Effect of surface oxide layer on high temperature strength of Fe-25Cr stainless steel  I.R.Sohn… 531
82  Initial stage of high temperature steam oxidation of Fe-9mass%Cr steel  T.Maruyama… 535
83  Steam oxidation properties of high chromium ferritic steels at 650 °C  T.Itagaki… 538
84  State-of-art about standardization of high-temperature corrosion and steam oxidation testing methods for metallic materials
    M.Yoshiba… 542