Formation of Laves Phase in Sanicro 25 Austenitic Steel During Creep-Rupture Test at 700 °C

2019 ◽  
Vol 8 (2) ◽  
pp. 281-286
Author(s):  
Jiao Suo ◽  
Zhifang Peng ◽  
Huachun Yang ◽  
Guocai Chai ◽  
Mingming Yu
Keyword(s):  
Austenitic Steel ◽  
Creep Rupture ◽  
Laves Phase ◽  
Creep Rupture Test

Study on Creep Rupture Test

1960 ◽  
Vol 46 (9) ◽  
pp. 982-987
Author(s):  
Ryuichi Nakagawa ◽  
Yasuo Otoguro
Keyword(s):  
Creep Rupture ◽  
Creep Rupture Test

MECHANICAL PROPERTIES OF SQUEEZE INFILTRATED AS52 MAGNESIUM MATRIX COMPOSITES

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1510-1515 ◽  
Author(s):  
YONG-HA PARK ◽  
YONG-HO PARK ◽  
IK-MIN PARK ◽  
KYUNG-MOX CHO ◽  
JEONG-JUNG OAK ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Creep Rupture ◽  
Matrix Composites ◽  
Matrix Interface ◽  
Magnesium Matrix ◽  
Magnesium Matrix Composites ◽  
Squeeze Infiltration ◽  
Polygonal Shape ◽  
Creep Rupture Test ◽  
Infiltration Method

Aluminum borate whisker (9( Al 2 O 3)·( B 2 O 3)) reinforced AS52(with and without strontium modification) metal matrix composites (MMC) were fabricated by the squeeze infiltration method. Creep rupture test was carried out at 150°C and 100 MPa condition. Results showed that Alborex reinforcement and modified polygonal shape Mg 2 Si phase contributed to the enhancement of mechanical properties and creep resistance. Creep rupture time was increased 11% and minimum creep rate was decreased 17% in the composite. At the Alborex/matrix interface, uniform thin layer of MgO was formed. The initiation of micro-voids at the reinforcement/matrix or Mg 2 Si /matrix interface was followed by their growth and coalescence to macro-cracks.

Novel Concept of Creep Strengthening Mechanism using Grain Boundary Fe2Nb Laves Phase in Austenitic Heat Resistant Steel

2011 ◽  
Vol 1295 ◽  
Author(s):  
Imanuel Tarigan ◽  
Keiichi Kurata ◽  
Naoki Takata ◽  
Takashi Matsuo ◽  
Masao Takeyama
Keyword(s):  
Grain Boundary ◽  
Strengthening Mechanism ◽  
Local Deformation ◽  
Creep Rupture ◽  
Laves Phase ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Term Creep

ABSTRACTThe creep behavior of a new type of austenitic heat-resistant steel Fe-20Cr-30Ni-2Nb (at.%), strengthened by intermetallic Fe2Nb Laves phase, has been examined. Particular attention has been given to the role of grain boundary Laves phase in the strengthening mechanism during long-term creep. The creep resistance increases with increasing area fraction (ρ) of grain boundary Laves phase according to equation ε/ε = (1−ρ), where ε0 is the creep rate at ρ = 0. In addition, the creep rupture life is also extended with increasing ρ without ductility loss, which can yield up to 77% of elongation even at ρ = 89%. Microstructure analysis revealed local deformation and well-developed subgrains formation near the grain boundary free from precipitates, while dislocation pile-ups were observed near the grain boundary Laves phase. Thus, the grain boundary Laves phase is effective in suppressing the local deformation by preventing dislocation motion, and thereby increases the long-term creep rupture strength. This novel creep strengthening mechanism was proposed as “grain boundary precipitation strengthening mechanism” (GBPS).

scholarly journals Assessment of remaining life of fossil power plant parts by means of a miniature creep rupture test.

1990 ◽  
Vol 30 (10) ◽  
pp. 854-861 ◽  
Author(s):  
Yoshikuni Kadoya ◽  
Toru Goto ◽  
Shingo Date ◽  
Takayoshi Yamauchi ◽  
Tomikane Saida ◽  
...  
Keyword(s):  
Power Plant ◽  
Creep Rupture ◽  
Remaining Life ◽  
Plant Parts ◽  
Creep Rupture Test ◽  
Fossil Power Plant

Effect of Laves phase on the creep rupture properties of P92 steel

2016 ◽  
Vol 668 ◽  
pp. 215-223 ◽  
Author(s):  
Lakshmiprasad Maddi ◽  
G.S. Deshmukh ◽  
A.R. Ballal ◽  
D.R. Peshwe ◽  
R.K. Paretkar ◽  
...  
Keyword(s):  
Creep Rupture ◽  
Laves Phase ◽  
P92 Steel ◽  
Rupture Properties

Growth Kinetics of Laves Phase and Its Effect on Creep Rupture Behavior in 9Cr Heat Resistant Steel

2016 ◽  
Vol 23 (7) ◽  
pp. 685-691 ◽  
Author(s):  
Zhi-xin Xia ◽  
Chuan-yang Wang ◽  
Chen Lei ◽  
Yun-ting Lai ◽  
Yan-fen Zhao ◽  
...  
Keyword(s):  
Growth Kinetics ◽  
Creep Rupture ◽  
Laves Phase ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Kinetics Of ◽  
Rupture Behavior

scholarly journals Microstructural Evolution of X20CrMoV12.1 Steel upon Short-term Creep Rupture Test

2013 ◽  
Vol 43 (4) ◽  
pp. 164-172 ◽  
Author(s):  
Mariko Hino ◽  
Yinsheng He ◽  
Kejian Li ◽  
Jungchel Chang ◽  
Keesam Shin
Keyword(s):  
Microstructural Evolution ◽  
Creep Rupture ◽  
Short Term ◽  
Creep Rupture Test ◽  
Term Creep ◽  
Short Term Creep
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