Workshop Program

Fifth Workshop on the Ultra-Steel

Ultra-Steel:

Future Challenges based on the Latest Results

Host

National Research Institute for Metals

Science and Technology Agency

Approval

Architectural Institute of Japan　　　　　　　　

The Iron and Steel Institute of Japan　　　　　　

Japan Association of Corrosion Control　　　　　

The Japan Institute of Metals　　　　　　　　

Japan Society of Civil Engineers　　　　　　　

Japan Society of Corrosion Engineering　　　　

The Japan Society for Heat Treatment　　　　　

The Japan Society of Mechanical Engineers　　　

Japanese Society of Steel Construction　　　 　

The Japan Society for Technology of Plasticity　　

The Japan Welding Engineering Society　　　　

Japan Welding Society　　　　　　　　　　　

Society of Automotive Engineers of Japan, Inc 　

The Surface Finishing Society of Japan　　　　　

The Society of Materials Science, Japan　　　 　

The Society of Naval Architects of Japan　　　　

Date : January 17(Wed.)-18(Thu.), 2001　　　　　　　　　　　　　　　

Venue : Tsukuba International Congress Center(EPOCHAL TSUKUBA)　

　　　　　 2-20-3 Takezono, Tsukuba, Ibaraki, Japan　　　　　　　　　　　　　　　　　　　

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　November, 2000

Dear Colleagues

　 The National Research Institute for Metals will hold the 5th International Workshop on Ultra-Steel to commemorate the start of the 21st century. There is only one year left in the "Frontier Structural Materials Project for the development of innovative steels (Ultra-Steel)" which began in April 1997; therefore, the time has arrived to start planning for the future expansion of this project.

　 This workshop entitled "Ultra-Steel: Future Challenges based on the Latest Results" has been organized with the purpose of summarizing the achievements of Ultra-Steel research and discussing the ways for future expansion and the methods to utilize the results we have obtained to solve the environmental problems which exist in our society.

　 Furthermore, there will be discussions on the scientific topics and prospects towards the new progress in the Ultra-Steels research which were made by applying the extraordinary advancements in nanotechnology and computer science.

I look forward to participation at this workshop.

　　　　　　　　　　　　　　　　　　　　　　Sincerely yours,

　　　　　　　　　　　　　　　　　　 Masatoshi Okada

　　　　　　　　　　　　　　　　　　 Director-General

　　　　　　　　　　　　　　　　　　 　　　　 　National Research Institute for Metals

　　　　　　　　　　　　　　　　　　　　　　　　Science and Technology Agency

Fifth Workshop

Opening Remarks　　Jan.17(Wed.) 9:30→9:35　300, 3F

Masatoshi Okada, Director-General, NRIM

Plenary Lecture (Japanese)　 Jan.17(Wed.) 9:35→12:15　300, 3F

Towards Further Advancements in Ultra-Steel Research

　 To maintain the continuing developments of the 21ST century, the research of steels that support the infrastructure of the modern society has recently been extensively promoted in national laboratories, industries and universities in Japan aiming at achieving "new construction" using "new high strengh and long life steels" with totally new concepts different from the existing idea. In this session, there will be discussions on the scientific and technological prospects relating to the steel materials of the new century as well as topics and expectations towards the realization of new structural materials.　There will also be a presentation concerning the future prospects of the ultra-steel research at the National Research Institute for Metals.

　　　　　　　　　　　　　　　　　　　　　　　　　Chairperson: Chiaki Shiga(NRIM)

1. Expectations for the Ultra-Steels toward 21st Century - Steel Maker's Prospects -

　Naoki Okumura(Nippon Steel)

2. Looking for the Innovation of Steels for Heavy Industries in the 21st Century

　Yorimasa Takeda(MHI)

3. Further Challenge for Breakthrough in Iron and Steel Materials

　Setsuo Takagi(Kyusyu Univ.)

4. Ultra Steel: Results and Evolution in Future

　Akira Satoh(NRIM)

Japanese Session

Technical Session 1　(Japanese) Jan.17(Wed.) 14:45→17:45　201, 2F

New Martensitic Structure and Its Creation Process for High Strength Steels with High Fatigue/Delayed Fracture Resistance

　The objective of this session is to discuss the recent innovations of high strength

martensitic steels with high resistance to fatigue and delayed fracture and the methods for

developing new seeds to epochal creation of high strength structural parts. Through the

presentations we would like to discuss the research targets for martensitic steels with

strength levels of over 1500 MPa in the new century.

　　　　　　　　　　　　　 Chairpersons: H.Yaguchi(Kobe Steel) and K.Tsuzaki(NRIM)

Presenters

Improvement of Rolling Contact Fatigue Strength on Case Hardening Steel Applied to High Performance Transmission System

K.Otani(Nissan Motor)

High Strength Technology in the Special Steel Parts for Automobile

I.Nomura(Aichi Steel)

New Martensitic Structure with High Fatigue/Delayed Fracture Resistance

K.Tsuzaki(NRIM)

Technical Session　2 (Japanese) Jan.17(Wed.) 14:45→17:45　202, 2F

Corrosion Cost Surveys and Life Cycle Cost in Infrastructure

- Optimum Materials Selection for Infrastructure in the 21st Century-

　 In the coming century Japan is shifting toward an elderly society where investment in new infrastructure and the labor for the repair of old structures are less available.　With this trend in mind materials selection should be carried out more on the life-cycle-cost (LCC) basis rather than on the initial-cost basis.　The session is concerned with LCC and materials selection in the fields of industry and infrastructure.　The summaries of latest corrosion cost surveys that have been carried out in Japan as well as in the other major countries of the world are also included.

　　　　　　　　　　　　　　　　　　　　　　Chairperson: T.Shinohara(Univ. of Tokyo)

Presenters

Life Cycle Cost of Thermal Barrier Coatings

K.Sonoya(IHI)

Materials Selection in Chemical Industry

K.Yamamoto(JGC)

Life Cycle Cost of Buildings

N.Kashino (BRI)

Longevity of Infrastructure

S.Moriya(PWRI)

Survey of Corrosion Cost in Japan

M.Yamamoto(Nippon Steel)

Overseas Surveys of Corrosion Cost

T.Shibata(Osaka Univ.)

Technical Session　3 (Japanese) Jan.18(Thu.) 9:00→12:00　300, 3F

Application of 800 MPa Class Ultra-Fine Grained Steels

　Trends in pipeline fabrication including the requirements for the mechanical properties will be presented by two keynote speakers. The mechanical properties of the ultra-fine grained steels being developed at NRIM and the welded joints will also be introduced. Through the presentations, we would like to discuss the problems and the applicability of ultra-fine grained steel to the pipeline for our future research programs.

　　　　　　　　　　　　　　　　　　　　　　　Chairperson:　F. Minami(Osaka Univ.)

Presenters

Propagating Shear Fracture in Ultra-High Pressure Pipelines for Natural Gas Transmission and Toughness Requirements for High-Grade Line Pipes

S.Machida(Chiba Univ.)

Welding Techniques in Pipeline Fabrication

N.Kawanishi(Osaka Gas)

Achievements and the Next Stage of Development of the 800 MPa Ultra-Fine Grained Steel

S.Torizuka(NRIM)

Properties of Urtra-Fine Grained Steels and Their Welded Joints

Y.Kawaguchi(NRIM)

Technical Session 4　(Japanese) Jan.18(Thu.) 9:00→ 12:00　201, 2F

Case Histories and Materials Issues of High-Temperature

Thick-Section Components

　Ultra-supercritical (USC) power plant at 650 ﾟC will have thicker boiler components than the present plants　which are lower than 600 ﾟC. The critical issues relating to materials degradation and damage are presented for welded joints as well as base metals with emphasis on high-temperature and thick section.

　　　　　　　　　　　　　　　　　　　　　　 Chairperson:　K.Tokimasa(Kinki Univ.)

Presenters

Degradation of Materials in Thermal Power Plant.

T.Teramae(TEPCO)

Design Method under Thermal Stress

T.Shimakawa(KHI)

High temprerature Strength Property of Boiler Thickness Weldment

T.Ogata(CRIEPI)

Current Status and Future Prospect of Research for Welded Component

M.Tabuchi(NRIM)

Generalized Discussion (Japanese) Jan.18(Thu.) 16:00→ 17:30　300, 3F

　 After focusing on the contents of the technical and symposium discussion sessions, there will be an overall discussion shifting towards the new developments of ultra-steel research.

English Session

Symposium　I (English) Jan.17(Wed.) 14:45→17:45　300, 3F

Trends in Advanced Welding and Joining

　Progress in welding and joining technology is essential for the development and the application of advanced structural materials. In this session, two major topics will be discussed on the trends in advanced welding and joining. The first topic is on the trends in advanced welding processes such as laser welding. The advantages, problems, solutions and future development of the processes will be discussed. The second topic is on the computer simulation of the welding phenomena. There will be a lecture on the numerical simulation of the microstructure development during welding and a discussion on the trends in computer simulation.

　　　　　　　　　　　　　　　　　　　　　 Chairperson: M.Ushio(Osaka Univ., Japan)

Presenters

Problems and Solutions of Deep Penetration Laser Welding

A.Matsunawa(Osaka Univ, Japan)

Trends in Laser Beam Welding Technology and Fracture Assessment of Weld Joints

M.Kocak (GKSS Res. Center Inst.Mater.Res., Germany)

Recent Advances in Modeling and Characterization of Weld Microstructure

S.A.David(Oak Ridge Nat.Lab., U.S.A.)

Development of Advanced Narrow Gap Welding and High Power Laser Welding(1.Advanced Narrow Gap Welding　2.High Power CO2 Laser Welding)

K.Hiraoka and S.Tsukamoto(NRIM, Japan)

Symposium　II (English) Jan.18(Thu.) 9:00→15:45　202, 2F

Nano-Technology for New Steel

In structural materials, mechanical properties can be improved by the nano-scale structure design. Modern nano-scale analysis techniques are powerful tools for realizing the improvement of their mechanical properties. In this session, the recent progress of the nano-scale analysis will be introduced from the following aspects: AP-FIM, TEM and AFM for nano-scale structure analysis, Nano Indentation technique for nano-scale mechanical property analysis, and SPM for nano-scale electrochemical analysis. We will discuss what is revealed by these new techniques and what kinds of new evaluation tools are expected from the viewpoint of structure creation.

　　　　　　　　　　　　　　 Chairpersons:　K.Ohtsuka(NAIR, Japan), M.Sugiyama(Nippon Steel, Japan)

　　　　　　　　　　　　 　　　　　　　　 A.Kawashima(Tohoku Univ.) and T.Nakayama(Kobe steel)

Presenters

Nanomaterials by Design: U.S. Perspective

G. Olson(North Western Univ., U.S.A.)

Atomic Scale Characterization of Steel Microstructures by Three-dimensional Atom Probe

K. Hono (NRIM, Japan)

Nano Structural Analysis of Heat Resisting Steels with Electron Microscopy

K. Yamada (NRIM, Japan)

Recent Development in Meso/Nano Scale Crystallographic Analysis of Steels

N.Tsuji (Osaka Univ., Japan)

Corrosion Analysys by SECM-AFM Method

P. Unwin (Univ. Warwick, U.K.)

Application of Kelvin Force Microscope to Corrosion Study

H. Masuda (NRIM, Japan)

Microstructural Characterization of Tempered Martensite by using AFM

M. Hayakawa and T. Hara (NRIM, Japan)

Mechanical Characterization of Steels using Nanoindentation Techniques

K. Miyahara and T. Ohmura (NRIM, Japan)

Symposium　III (English) Jan.18(Thu.) 12:45→15:45　201, 2F

New Trend in Improvement of Long Term Creep Strength

and Stabilization of Microstructure

　We have 6 invited talks focusing on topics concerning the new trends in the improvement of long term creep strength and the stabilization of the microstructure of advanced ferritic heat resistant steels for ultra-supercritical (USC) power plant.

　　　　　　　　　　　　　　　　　　　　　Chairperson:　K. Maruyama(Tohoku Univ.)

Presenters

Long Term Creep Resistance and Microstructural Stability of Ferritic Heat-Resistant Steels

V. Foldyna and Z. Kubon (Vitokovice, Czech Republic)

The Effect of Microstructure on the Long Term Creep Behaviour of Welded Joints of Advanced Ferritic Steels

H. Cerjak and E.Letofsky (Technical Univ. of Graz, Austria)

Role of Rhenium in Stabilizing the Microstructure of Heat Resisting Ferritic Steels

Y. Murata　(Nagoya Univ., Japn)

Exploration of Guiding Principles to Achieve Long Term Creep Resistance of Ferritic Steels at Elevated Temperatures over 600 ﾟC

M. Igarashi　(Sumitomo Metals, Japan)

Improvement of Creep Strength of Full Annealed High Cr Ferritic Steels

K. Kimura　(NRIM, Japan)

Utilization of Boron to Improve Long Term Creep Rupture Strength of Ferritic Heat Resistant Steels

T. Horiuchi　(NRIM, Japan)

Poster Session　 (English) Jan.17(Wed.) 12:45→ 14:45　401,402,403,405,406, 4F

　　The poster session will consist of presentations and discussions for 114 posters(52 posters outside of NRIM) relating to the results obtained from the ultra-steels research.　Based on the responses to the poster session announcement covering a wide range of topics from researchers including those from various universities and industries, the following members outside of NRIM will be presenting posters at this session.

800 MPa High-Strength Steel: K.Anami(Tokyo Inst of Tech.), J-K.Choi(POSCO, Korea),

S.Genda(Science Univ. of Tokyo), N.Ikeda(Kawasaki Steel), H-C. Jeong(POSCO, Korea), N.Kiji(IHI),

Y.C.Kim(Osaka Univ.), K.Kobayashi(IHI), Y.Morikage(Kawasaki Steel), T.Ohashi(Kitami Inst of Tech.),

T.Takatani(Hitachi Construction Machinery), Y.Tomota(Ibaraki Univ.), H.Yamaoka(IHI), J.Yanagimoto(Univ. of Tokyo),

T.Yokomizo(Ibaraki Univ.), T.Zhiling(Central Iron & Steel Res Inst., China),　

1500 MPa High-Strength Steel:　Y.Asada(Yokohama National Univ.),

A.Belyakov(Inst. for Metals Superplasticity Problems, Russia),

N.Granito(Univ. of Tokyo), H.Hanada(Kyushu Univ.), R.Ishibashi(Hitachi, Ltd.), S.Komazaki(Muroran Inst. of Tech.), T.Kouchi(Kobe SteeL), H.Kuwahara(Res. Inst. for Applied Sciences), S.Mimura(Chuo Spring), H.Noguchi(Kyushu Univ.), H.Ohba(Toyo Elictric Mfg.) M.Tamaoki(Waseda Univ.), K.Tanaka(Nagaoka Univ. of Tech.), T.Tanaka(Toyota Central R&D Labs.,Inc.), N.Tsuji(Osaka Univ.), W.Urushihara(Kobe Steel)

Heat-Resistant Steel: T.Azuma（Japan Steel Works）, Y.Hirakawa （MHI），T.Lee(Hiroshima Univ.),

F.Masuyama（MHI）， Y.Minami（NKK），K.Miyahara（Nagoya Univ.），Y.Murata(Nagoya Univ.),

K.Shinozaki(Hiroshima Univ.), K.Suzuki（Tokyo Institute of Tech.）, S.Ukai（JNC）,

K.Yamamoto(Tokyo Inst. of Tech.), M.Yoshizawa（Sumitomo Metal）,

Corrosion-Resistant Steel: S.Akao(Keio Univ.), S.Fujimoto(Osaka Univ.), H.Kihira(Nippon Steel), M.Nagasawa(Science Univ. of Tokyo), T.Nakayama(Kobe Steel), T.Shinohara(Univ. of Tokyo), M.Takemura(NKK),

H.Yashiro(Iwate Univ.),

Banquet

　The conference banquet will be held on Jan.17(Wed.) at 18:00 in the Lecture Hall,　NRIM.　The cost is 5,000 yen(3,000 yen for students). On-site registration is not available for the Banquet.

[Traffic Information]

Using the JR Train(Joban Line): Get off at the Hitachino Ushiku Station and take the Kanto Tetsudo Bus bound for Tsukuba Center or Tsukuba-Daigaku-Chuo. Get off at "Tsukuba Center".

From JR Tokyo Station: Take the Joban Highway Bus bound for Tsukuba Center from the Yaesu South Exit. Get off at "Tsukuba Center".

From New Tokyo International (Narita) Airport: Take the NATTS Limousine Bus bound for Tsuchiura from bus stop No.8 in the 1st terminal or No.12 in the 2nd terminal. Get off at "Tsukuba Center".

Walk 10 Minutes from Tsukuba Center to Tsukuba International Congress Center(EPOCHAL TSUKUBA).

[Hotel Information]

Please refer to the following home page.

http://www.daiichi-hotel.co.jp/tsukuba/index-e.html

[Registration Fee]

Free (However, there is a charge for the banquet.)

[Registration Address]

Tsukuba Information Lab. Inc. FAX +81-298-52-0844

On-site registration will be at EPOCAL TSUKUBA on January 17-18. (In order to estimate the number of participants, please inform by Wednesday, Dec. 20 by FAX.　On-site registration is not available for the Banquet.)

[Information Address]

Frontier Research Center for Structural Materials Office

National Research Institute for Metals

1-2-1, Sengen, Tsukuba, 305-0047 Japan

TEL +81-298-59-2210,　FAX +81-298-59-2213

Home Page:http://www.nrim.go.jp/

*A proceeding is available at the registration desk on Jan.17-18