OS6-11 Applicabillity of Small Punch Creep Testing Method to Ni-base Superalloys : Effect of Fracture Morphologies on Small Punch Creep Strength

2007 ◽  
Vol 2007.12 (0) ◽  
pp. 31-32
Author(s):  
Hideki TAKAHASHI ◽  
Hideshi TEZUKA ◽  
Shin-ichi KOMAZAKI
Keyword(s):  
Creep Strength ◽  
Creep Testing ◽  
Small Punch ◽  
Testing Method ◽  
Fracture Morphologies

Strain Rate Sensitivity Effect Measured in 316 Steel by the Small Punch Testing Method

2018 ◽  
Vol 7 (1) ◽  
pp. 20180068
Author(s):  
F. Lowrie ◽  
M. Gorley ◽  
E. Surrey ◽  
B. Wynne ◽  
D. Wilkes
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Rate Sensitivity ◽  
Small Punch ◽  
Testing Method

On the Long Time High Sensitivity Creep Testing Method

1955 ◽  
Vol 58 (441) ◽  
pp. 731-736
Author(s):  
Takeshi AKUTAGAWA ◽  
Toshio FUJITA ◽  
Kazuo TAKEMURA
Keyword(s):  
High Sensitivity ◽  
Creep Testing ◽  
Testing Method ◽  
Long Time

Development of Compact Small Punch Creep Testing Equipment

2011 ◽  
Author(s):  
Hajime Watanabe ◽  
Akihiro Kanaya ◽  
Junichi Kusumoto ◽  
Takafumi Tsurui
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Residual Life ◽  
Thermal Power ◽  
Creep Property ◽  
Testing Equipment ◽  
Creep Testing ◽  
Small Punch ◽  
Life Evaluation

Japan has many aged thermal power plant facilities and some boilers in such facilities have been in operation for more than 100,000 hours, so the importance of creep residual life evaluation of components exposed to severe conditions has been increasing. Although creep residual life of such components can be evaluated by destructive methods relatively accurately, they significantly affect the component to be sampled, take a long time to carry out and are high-cost. To solve these problems, Kobe Material Testing Laboratory Co., Ltd. and Kyushu Electric Power Co., Inc. have jointly developed compact-sized and less expensive small punch creep testing equipment for accurate creep residual life evaluation. Outer dimensions of developed equipment are 660W × 335D × 807H (mm); weight is 130kg. Small punch creep test can be conducted by this testing equipment, in order to identify creep property using 8mm diameter and 0.5mm thickness specimens taken from tubes or pipes of thermal power plant facilities, and evaluate remaining life. The testing equipment is expected to improve efficiency and reduce costs to evaluate material characteristics and creep residual life for facilities in power plants and various industries.

J0310303 Creep damage evaluation of low alloy steel weld joint by small punch creep testing

2015 ◽  
Vol 2015 (0) ◽  
pp. _J0310303--_J0310303-
Author(s):  
Tomoya NISHIOKA ◽  
Hiromi UEMURA ◽  
Kazunari FUJIYAMA ◽  
Yoshiatsu SAWARAGI
Keyword(s):  
Alloy Steel ◽  
Weld Joint ◽  
Creep Damage ◽  
Creep Testing ◽  
Damage Evaluation ◽  
Steel Weld ◽  
Low Alloy Steel ◽  
Small Punch ◽  
Steel Weld Joint
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