Study of metallurgical and mechanical properties of CSEF P92 steel diffusion bonds developed using pressure pulsation

2019 ◽  
Vol 38 ◽  
pp. 196-203
Author(s):  
Gaurav Sharma ◽  
Dheerendra Kumar Dwivedi
Keyword(s):  
Mechanical Properties ◽  
Pressure Pulsation ◽  
P92 Steel ◽  
Diffusion Bonds

Investigation on mechanical properties of P92 steel using ball indentation technique

2015 ◽  
Vol 624 ◽  
pp. 92-101 ◽  
Author(s):  
Dipika R. Barbadikar ◽  
A.R. Ballal ◽  
D.R. Peshwe ◽  
J. Ganeshkumar ◽  
K. Laha ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
P92 Steel ◽  
Indentation Technique ◽  
Ball Indentation

scholarly journals Mechanical Properties of Main Steel Pipeline P92 Steel in Ultra-Supercritical Unit after 50,000 h Service

2021 ◽  
Vol 680 (1) ◽  
pp. 012061
Author(s):  
Xinmei Li ◽  
Zhongwen Zhang ◽  
Baoshuai Du ◽  
Yong Zou ◽  
Shuai Suo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
P92 Steel ◽  
Steel Pipeline

scholarly journals Study of Mechanical Behavior and Microstructure for Low-Hardness P92 Steel

2021 ◽  
Vol 2101 (1) ◽  
pp. 012074
Author(s):  
Weixin Yu ◽  
Zhen Dai ◽  
Jifeng Zhao ◽  
Lulu Fang ◽  
Yiwen Zhang
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Tensile Strength ◽  
Maximum Size ◽  
Rapid Decrease ◽  
Laves Phases ◽  
P92 Steel ◽  
A Chain ◽  
The Stability ◽  
Evolution Of Microstructure

Abstract The strength of P92 steel (tensile strength, specified plastic elongation strength) will decrease after its hardness is reduced, ferrite and carbides forming the structure. Carbides of grain size 5-6 are precipitated in the grains and grain boundaries. The martensite lath shape has completely disappeared. M23C6 carbide coarsened obviously, with a maximum size of about 500nm; The Laves phase is also aggregated and coarsened, connecting in a chain shape with a maximum size of more than 500nm. Evolution of microstructure, namely the obvious coarsening of M23C6 carbides and the aggregation and connection of Laves phases in a chain shape, are the main causes for rapid decrease in the stability of the material substructure and evident decline in mechanical properties and hardness. In addition, the MX phase did not change significantly, hardly affecting the hardness reduction of P92 steel.

Investigation on Microstructural Evolutions and Mechanical Properties of P92 Steel During Thermal Processing

2018 ◽  
Vol 27 (9) ◽  
pp. 4392-4404
Author(s):  
Jichao Wang ◽  
Pulin Nie ◽  
Shangfei Qiao ◽  
O. A. Ojo ◽  
Chengwu Yao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Processing ◽  
P92 Steel

A brief study on δ-ferrite evolution in dissimilar P91 and P92 steel weld joint and their effect on mechanical properties

2018 ◽  
Vol 18 (3) ◽  
pp. 713-722 ◽  
Author(s):  
Chandan Pandey ◽  
Manas Mohan Mahapatra ◽  
Pradeep Kumar ◽  
Nitin Saini ◽  
Jayant Gopal Thakre ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Weld Joint ◽  
Steel Weld ◽  
P92 Steel ◽  
Δ Ferrite ◽  
Steel Weld Joint

Influence of heat treatments on microstructural parameters and mechanical properties of P92 steel

2000 ◽  
Vol 16 (10) ◽  
pp. 1226-1233 ◽  
Author(s):  
P.J. Ennis ◽  
A. Zielińska-Lipiec ◽  
A. Czyrska-Filemonowicz
Keyword(s):  
Mechanical Properties ◽  
Heat Treatments ◽  
P92 Steel ◽  
Microstructural Parameters

Diffusion bonding of nickel and zirconia: Mechanical properties and interfacial microstructures

1992 ◽  
Vol 7 (6) ◽  
pp. 1480-1488 ◽  
Author(s):  
C-D. Qin ◽  
B. Derby
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Bond Strength ◽  
Grain Boundaries ◽  
Oxide Layer ◽  
Diffusion Bonding ◽  
Bonding Interface ◽  
Subsequent Annealing ◽  
Bending Tests ◽  
Diffusion Bonds

Diffusion bonds of Ni/ZrO2 and Ni/NiO/ZrO2 fabricated in vacuum have been investigated using flexural 4-point bending tests and optical and electron microscopy. It is found that subsequent annealing in air after bonding improves bond strength, and annealing in vacuum reduces strength. This is attributed to the formation of a thin oxide layer during annealing in air which enhances adhesion to the ceramic, whereas annealing in vacuum creates debonding voids at the specimen edges. The transformation of NiO in vacuum to Ni explains why the strength of bonds using preoxidized Ni foil does not show any increase, as it is essentially still the diffusion bonding of Ni to ZrO2 in the configuration of Ni/NiO/Ni/ZrO2. The presence of extensive void necklaces on grain boundaries in the metal where they intersect the bonding interface shows the importance of the metal grain boundaries acting as vacancy sinks during diffusion bonding.

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