Formation of ferrite with Cr equivalents and solidification rates in Mod. (9-12)Cr-1Mo steels

被引：1

作者：

Kim, Y. H. ^{[1
]}

Kim, H. C. ^{[1
]}

Jung, Y. G. ^{[1
]}

Lee, J. H. ^{[1
]}

Chi, B. H. ^{[2
]}

Ryu, S. H. ^{[2
]}

机构：

[1] Changwon Natl Univ, Dept Mat Sci & Engn, Chang Won, South Korea

[2] Doosan Heavy Ind Co, R&D Ctr, Chang Won, South Korea

来源：

ADVANCES IN NANOMATERIALS AND PROCESSING, PTS 1 AND 2 | 2007年 / 124-126卷

关键词：

Mod.12Cr-1Mo steel; directional solidification; ferrite; segregation;

D O I：

10.4028/www.scientific.net/SSP.124-126.1497

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of solidification rates and Cr equivalents on the formation of the ferrite was studied by directional solidification in mod. (9-12)Cr-1Mo steels. It was found that the volume fraction of ferrite increased as increasing Cr equivalent and solidification rate. The volume fraction of the ferrite showed much higher at low solidification rates with the planar or cellular interface than that at high solidification rates with the dendritic interface. The volume fraction of ferrite in solidification microstructure showed much higher than that in extruded and heat-treated alloys. It depends on not only solidification rate and Cr equivalent but also the solidification fraction. At low solidification rates, there occurs segregation because the solid/liquid interface was planar or cellular, and it makes composition change with solidification fractions. The formation of ferrite has been discussed with Cr equivalent and solidification rate.

引用

页码：1497 / +

页数：2

共 50 条

[41] Formation of Delta Ferrite with Solidification Rates in 10Cr1MoW Steel
Kwon, Suncheol
Joo, Yunkon
Sung, Changhoon
Son, Myunggyun
Shin, Jongho
Seo, Seongmoon
Lee, Jehyun
KOREAN JOURNAL OF METALS AND MATERIALS, 2018, 56 (08): : 589 - 596
[42] Verification of the Estimation Methods of Strain Range in Notched Specimens Made of Mod. 9Cr-1Mo Steel
Ando, Masanori
Hirose, Yuichi
Date, Shingo
Watanabe, Sota
Enuma, Yasuhiro
Kawasaki, Nobuchika
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 2012, 134 (06):
[43] Study on observation condition and on simple evaluation method of TypeIV creep damage of Mod. 9Cr-1Mo steel
Kawashima, F.
Masumitsu, T.
Negi, K.
Watanabe, K.
Fujiwara, K.
12TH INTERNATIONAL CONFERENCE ON DAMAGE ASSESSMENT OF STRUCTURES, 2017, 842
[44] Z-phase formation during creep and aging in 9-12% Cr heat resistant steels
Sawada, K
Kushima, H
Kimura, K
ISIJ INTERNATIONAL, 2006, 46 (05) : 769 - 775
[45] High Temperature Strengthening in 12Cr-W-Mo Steels by Controlling the Formation of Delta Ferrite
Shushen Wang
Li Chang
Deye Lin
Xiaohua Chen
Xidong Hui
Metallurgical and Materials Transactions A, 2014, 45 : 4371 - 4385
[46] High Temperature Strengthening in 12Cr-W-Mo Steels by Controlling the Formation of Delta Ferrite
Wang, Shushen
Chang, Li
Lin, Deye
Chen, Xiaohua
Hui, Xidong
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2014, 45A (10): : 4371 - 4385
[47] The role of alloy composition on the steam oxidation resistance of 9-12%Cr steels
Osgerby, S.
Fry, A.
HIGH-TEMPERATURE OXIDATION AND CORROSION 2005, 2006, 522-523 : 129 - 137
[48] THE RELATION BETWEEN MICROSTRUCTURE AND CREEP PROPERTIES OF MARTENSITIC 9-12% CR STEELS
Cerjak, H.
Holzer, I.
Mayr, P.
Pein, C.
Sonderegger, B.
Kozeschnik, E.
NEW DEVELOPMENTS ON METALLURGY AND APPLICATIONS OF HIGH STRENGTH STEELS: BUENOS AIRES 2008, VOLS 1 AND 2, PROCEEDINGS,, 2008, : 247 - 263
[49] Diffusion coatings for high temperature corrosion protection of 9-12%Cr steels
Rohr, V
Donchev, A
Schütze, M
Milewska, A
Pérez, FJ
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2005, 40 (03) : 226 - 232
[50] Review of Z phase precipitation in 9-12 wt-%Cr steels
Danielsen, H. K.
MATERIALS SCIENCE AND TECHNOLOGY, 2016, 32 (02) : 126 - 137

← 1 2 3 4 5 →