scholarly journals Estimation of Long Time Creep Rupture Strength for Austenitic Steel Considering Metallurgical Changes

1964 ◽  
Vol 13 (126) ◽  
pp. 128-133
Author(s):  
Tokumi MAEDA ◽  
Masanori KIYOSHIGE
Keyword(s):  
Austenitic Steel ◽  
Rupture Strength ◽  
Creep Rupture ◽  
Creep Rupture Strength ◽  
Long Time

scholarly journals Effect of Additions of Ti, Nb, V and Ti, Nb, B on Creep-Rupture Strength of High-Mn Austenitic Steel

1970 ◽  
Vol 56 (6) ◽  
pp. 760-771
Author(s):  
Tohru MIMINO ◽  
Kazuhisa KINOSHITA ◽  
Isao MINEGISHI ◽  
Takayuki SHINODA
Keyword(s):  
Austenitic Steel ◽  
Rupture Strength ◽  
Creep Rupture ◽  
Creep Rupture Strength

Effects of some carbide stabilizing elements on creep-rupture strength and microstructural changes of 18-10 austenitic steel

1973 ◽  
Vol 4 (5) ◽  
pp. 1213-1222 ◽  
Author(s):  
Takayuki Shinoda ◽  
Tomoyuki Ishii ◽  
Ryohei Tanaka ◽  
Tohru Mimino ◽  
Kazuhisa Kinoshita ◽  
...  
Keyword(s):  
Austenitic Steel ◽  
Rupture Strength ◽  
Creep Rupture ◽  
Creep Rupture Strength ◽  
Microstructural Changes

KUBOTA ALLOY KHR35C

Alloy Digest ◽  
1999 ◽  
Vol 48 (7) ◽  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Rupture Strength ◽  
Creep Rupture ◽  
Creep Rupture Strength ◽  
Temperature Performance

Abstract Kubota alloy KHR35C is similar to HP alloy with the addition of niobium to increase its creep-rupture strength. Typical applications include components and assemblies for severe carburizing environments, such as ethylene pyrolysis coils. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as casting and joining. Filing Code: SS-753. Producer or source: Kubota Metal Corporation.

A Postassessment Test of 100,000 h Creep Rupture Strength of Grade 91 Steel at 600 °C

2017 ◽  
Vol 139 (5) ◽  
Author(s):  
K. Maruyama ◽  
N. Sekido ◽  
K. Yoshimi
Keyword(s):  
Rupture Strength ◽  
Creep Rupture ◽  
Creep Rupture Strength ◽  
Data Points ◽  
Predicted Values ◽  
Grade 91 ◽  
Term Creep ◽  
Term Data ◽  
Grade 91 Steel

Predictions as to 105 h creep rupture strength of grade 91 steel have been made recently. The predicted values are examined with long-term creep rupture data of the steel. Three creep rupture databases were used in the predictions: data of tube products of grade 91 steel reported in National Institute for Materials Science (NIMS) Creep Data Sheet (NIMS T91 database), data of T91 steel collected in Japan, and data of grade 91 steel collected by an American Society of Mechanical Engineers (ASME) code committee. Short-term creep rupture data points were discarded by the following criteria for minimizing overestimation of the strength: selecting long-term data points with low activation energy (multiregion analysis), selecting data points crept at stresses lower than a half of proof stress (σ0.2/2 criterion), and selecting data points longer than 1000 h (cutoff time of 1000 h). In the case of NIMS T91 database, a time–temperature parameter (TTP) analysis of a dataset selected by multiregion analysis can properly describe the long-term data points and gives the creep rupture strength of 68 MPa at 600 °C. However, TTP analyses of datasets selected by σ0.2/2 criterion and cutoff time of 1000 h from the same database overestimate the data points and predict the strength over 80 MPa. Datasets selected by the same criterion from the three databases provide similar values of the strength. The different criteria for data selection have more substantial effects on predicted values of the strength of the steel than difference of the databases.

scholarly journals Creep Rupture Strength of the Specimens from Actual Turbine Rotor Shaft

1963 ◽  
Vol 12 (114) ◽  
pp. 118-122
Author(s):  
Mamoru NISHIHARA ◽  
Taira NAKANO ◽  
Shunji YAMAMOTO ◽  
Hisashi TAKADA ◽  
Tadataka GOTO
Keyword(s):  
Rupture Strength ◽  
Turbine Rotor ◽  
Creep Rupture ◽  
Creep Rupture Strength ◽  
Rotor Shaft
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