scholarly journals Effects of W and Co on Long-term Creep Strength of Precipitation Strengthened 15Cr Ferritic Heat Resistant Steels.

2003 ◽  
Vol 43 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Yoshiaki Toda ◽  
Kazuhiro Seki ◽  
Kazuhiro Kimura ◽  
Fujio Abe
Keyword(s):  
Creep Strength ◽  
Heat Resistant ◽  
Term Creep ◽  
Heat Resistant Steels

scholarly journals Optimization of Cr Content in High Cr Heat Resistant Steels on the Basis of Long Term Creep Strength

2002 ◽  
Vol 88 (11) ◽  
pp. 793-800 ◽  
Author(s):  
Ryokichi HASHIZUME ◽  
Kazuhiro MIKI ◽  
Tsukasa AZUMA ◽  
Toru ISHIGURO ◽  
Yoshinori MURATA ◽  
...  
Keyword(s):  
Creep Strength ◽  
Cr Content ◽  
Heat Resistant ◽  
Term Creep ◽  
Heat Resistant Steels

scholarly journals Beneficial Effect of Re on the Long-term Creep Strength of High Cr Ferritic Heat Resistant Steels

2009 ◽  
Vol 95 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Ryokichi Hashizume ◽  
Osamu Tamura ◽  
Kazuhiro Miki ◽  
Tsukasa Azuma ◽  
Tohru Ishiguro ◽  
...  
Keyword(s):  
Beneficial Effect ◽  
Creep Strength ◽  
Heat Resistant ◽  
Term Creep ◽  
Heat Resistant Steels

Long-Term Stabilization of Creep-Resistant Ferritic Steels for Highly Efficient Ultra-Supercritical Power Plants

2010 ◽  
Vol 72 ◽  
pp. 12-21 ◽  
Author(s):  
Fujio Abe
Keyword(s):  
Creep Strength ◽  
Power Plants ◽  
High Strength ◽  
Highly Efficient ◽  
Heat Resistant ◽  
Nickel Base ◽  
Ar Gas ◽  
Term Creep ◽  
Heat Resistant Steels

Alloy-designing of high-strength ferritic heat resistant steels has been investigated for application to highly efficient, low emission ultra-supercritical power plant with maximum steam temperature of 700 oC. Ferritic heat resistant steels can be applied to the next highest temperature components and are strongly desired to expand their temperature range up to 650 oC in order to minimize the requirement of expensive nickel base superalloys. A dispersion of nanometer size MX nitrides along boundaries and the addition of boron significantly improve long-term creep strength. Newly alloy-designed 9Cr-3W-3Co-0.2V-0.05Nb steel with 160 ppm boron and 85 ppm nitrogen exhibits excellent creep strength of base metal and no degradation in welded joints at 650 oC. The protective Cr2O3-rich scale forms on the surface of 9Cr steel by pre-oxidation treatment in Ar gas, which significantly improves the oxidation resistance in steam at 650 oC.

scholarly journals Fundamental Properties of Long-term Creep Strength for Ferritic Heat Resistant Steels

1991 ◽  
Vol 77 (5) ◽  
pp. 667-674 ◽  
Author(s):  
Kazuhiro KIMURA ◽  
Hideaki KUSHIMA ◽  
Koichi YAGI ◽  
Chiaki TANAKA
Keyword(s):  
Creep Strength ◽  
Fundamental Properties ◽  
Heat Resistant ◽  
Term Creep ◽  
Heat Resistant Steels

scholarly journals Effects of Ni and Heat Treatment on Long-term Creep Strength of Precipitation Strengthened 15Cr Ferritic Heat Resistant Steels

2005 ◽  
Vol 45 (11) ◽  
pp. 1747-1753 ◽  
Author(s):  
Yoshiaki TODA ◽  
Mitsuyoshi IIJIMA ◽  
Hideaki KUSHIMA ◽  
Kazuhiro KIMURA ◽  
Fujio ABE
Keyword(s):  
Heat Treatment ◽  
Creep Strength ◽  
Heat Resistant ◽  
Term Creep ◽  
Heat Resistant Steels

Elastic properties of heat resistant steels after long-term creep exposure

2008 ◽  
Vol 25 (3) ◽  
pp. 179-185
Author(s):  
K. Sawada ◽  
T. Ohmura ◽  
T. Ohba ◽  
K. Tsuzaki ◽  
F. Abe ◽  
...  
Keyword(s):  
Elastic Properties ◽  
Heat Resistant ◽  
Term Creep ◽  
Heat Resistant Steels ◽  
Creep Exposure

scholarly journals 3D Observation on Precipitates of a Ferritic Heat Resistant Steel after Long-term Creep

Materia Japan ◽  
2018 ◽  
Vol 57 (12) ◽  
pp. 619-619
Author(s):  
Tomoyuki Hatta ◽  
Nobuaki Sekido ◽  
Mitsuharu Yonemura ◽  
Kouichi Maruyama ◽  
Kyosuke Yoshimi
Keyword(s):  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Term Creep

scholarly journals Effects of Full Annealing Heat Treatment on Long-term Creep Strength of 2.25Cr-1Mo Steel Welded Joint

2003 ◽  
Vol 21 (2) ◽  
pp. 195-203 ◽  
Author(s):  
Kazuhiro KIMURA ◽  
Takashi WATANABE ◽  
Hiromichi HONGO ◽  
Masayoshi YAMAZAKI ◽  
Jun-ichi KINUGAWA ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Creep Strength ◽  
Welded Joint ◽  
Annealing Heat Treatment ◽  
Full Annealing ◽  
Term Creep ◽  
Annealing Heat
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