Research Achievements 1 페이지 | 포항공과대학교 친환경소재대학원

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Research Achievements

Total 8건 1 페이지

8

CML [CML]Prof.Dong-Woo Suh: Interplay of Nb addition and annealing temperature and its influence on microstructure and tensile properties of multiphase steel We investigated the interplay of Nb addition and annealing temperature and its influence on the microstructure evolution in low carbon cold-rolled steel to understand the unique change of tensile properties derived by Nb addition. While the..

작성자 최고관리자 작성일 2022-06-14
7

CML [CML]Prof.Dong-Woo Suh: Microstructure and tensile properties of chemically heterogeneous steel consisting of martensite and austenite We made the chemical heterogeneity in steel consisting of mostly martensite with retained austenite by applying intercritical annealing prior to full austenitization. It enables simultaneous improvement in strength and ductility, which have..

작성자 최고관리자 작성일 2022-06-14
6

CML [CML] Prof. Dong Woo Suh:Quenching and partitioning (Q&P) processed medium Mn steel starting from heterogeneous microstructure We examine the microstructure and tensile properties of the quenching and partitioning (Q&P) processed medium Mn steels having different starting microstructure. Heterogeneous Mn distribution led by intercritical annealing prior to the ..

작성자 최고관리자 작성일 2020-09-01
5

CML [CML] Prof. Dong Woo Suh:Analysis of transformation stasis by the Gibbs energy balance (GEB) approach modified to consider carbon redistribution int .… The Gibbs energy balance (GEB) concept for modeling the transformation stasis during isothermal ferrite formationis revisited. Modification has been made to take into account the carbon redistribution into remainingaustenite and the increas..

작성자 최고관리자 작성일 2020-09-01
4

CML [CML] Prof. Dong Woo Suh: Hydrogen Behavior in Ti-Added Reduced Activation Ferritic-Martensitic Steels Hydrogen behavior and corresponding mechanical degradation were examined in TaTi-RAFM and EUROFER97 steels. Increased Ta content with Ti addition decelerates the hydrogen diffusion but increases the solubility in the lattice. It is mainly l..

작성자 최고관리자 작성일 2020-01-30
3

CML [CML] Prof. Dong Woo Suh Austenite Morphology and resistance to hydrogen embrittlement in medium Mn transformation-induced plasticity steel Influence of austenite morphology on the hydrogen embrittlement in mediumMn transformation-induced plasticity (TRIP) steelwas investigated.With nearly the same volume fraction andmechanical stability, the lath-type austenite is found to hav..

작성자 최고관리자 작성일 2020-01-30
2

CML [CML] Prof. Dong-Woo Suh: Influence of initial microstructures on intercritical The present work reports the effect of different initial microstructures on reverse transformation kinetics and morphologies of austenite formed during intercritical annealing in Fe-0.14C-7Mn-1Si (wt-%)mediumMnsteel. Three different initial..

작성자 최고관리자 작성일 2019-01-28
1

CML [CML] Prof. Dong-Woo Suh: Effect of Prior Austenite Grain Size on Hole Expansion Ratio The effect of the prior austenite grain size (PAGS) on the tensile properties and hole expansion ratio (HER) has been investigated. Starting from different PAGS values (4.7 lm and 15.2 lm) obtained by controlling the austenitizing temperatu..

작성자 최고관리자 작성일 2019-01-28

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