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Now showing items 1-20 of 44

High-temperature-design-curves-for-high-nitrogen-grades-of-316LN-stainless-steel

Mathew, M D (Elsevier, 2010)

Nitrogen alloyed low carbon grade 316L(N) stainless steel (SS) is a major structural material for high temperature structural components of sodium cooled fast reactors. With a view to signiﬁcantly enhance the high ...
Microstructural Modifications due to Tungsten and Tantalum in 9Cr Reduced Activation Ferritic Martensitic Steels on Creep Exposure

Mathew, M D; Mythili, R; Ravikirana; Vsnaja, J; Laha, K; Saroja, S; Jayakumar, T; Rajendrakumar, E (Procedia Engineering, 2013)

Replacement of Mo and Nb by W and Ta in modified 9Cr-1Mo class of steels has been significantly useful for achieving reduced activity and improved mechanical properties. The addition of W and Ta strongly influences ...
Improvement in Creep Damage Tolerance of 14Cr-15Ni- Ti modified Stainless Steel by Addition of Minor Elements

Mathew, M D; Latha, S; Panneer Selvi, S; Mannan, S L (Procedia Engineering, 2013)

Creep properties of 14Cr-15Ni-Ti modified steel, alloyed with phosphorus and silicon were investigated at 973 K in the stress range 175-250 MPa. The phosphorus content in the alloys was 0.025 and 0.04 wt.%, silicon 0.75 ...
Evaluation of Low Cycle Fatigue Damage in Grade 91 Steel Weld Joints for High Temperature Applications

Mathew, M D; Shankar, Vani; Mariappan, K; Sandhya, R (Procedia Engineering, 2013)

Grade 91 steel is a heat treatable steel and hence its microstructure is very sensitive to temperature. The weld joint consisting of a heterogeneous microstructure exhibits a lower fatigue life than that of the base metal. ...
Modelling the Effect of Grain Boundary Sliding on Creep Lifetime: Application to Two Austenitic Stainless Steel

Mathew, M D; Mahesh, Sivasambu (Procedia Engineering, 2013)

A model capable of representing the evolution rate of various damage mechanisms pertinent to creep rupture of austenitic stainless steels is utilized to study the role of grain boundary sliding on the damage evolution in ...
Effect of Prior Cold Work on the Creep Rupture Properties of 14Cr-15Ni-Ti Stainless Steel

Mathew, M D; Vijayanand, V D; Nandagopal, M; Parameswaran, P; Laha, K; Mathew, M D (Procedia Engineering, 2013)

Titanium bearing 14Cr-15Ni stainless steel is the material chosen for the fabrication of the fuel clad tubes used in the Prototype Fast Breeder Reactor which is under construction at Kalpakkam. The superior swelling ...
Effects of Tungsten and Tantalum on Creep Deformation and Rupture Properties of Reduced Activation Ferritic-Martensitic Steel

Mathew, M D; Vanaja, J; Laha, K; Jayakumar, T; Rajendra Kumar, E (Procedia Engineering, 2013)

Reduced Activation Ferritic-Martensitic (RAFM) steels are actively considered as structural material for blanket module of fusion reactor for its adequate creep rupture strength and better void swelling resistance than ...
Development of Stainless Steels in Nuclear Industry with Emphasis on Sodium Cooled Fast Spectrum Reactors

Mathew, M D (ResearchGate, 2013)
Thermomechanical Fatigue Behaviour of a Modified 9Cr-1Mo Ferritic Steel

Mathew, M D; Nagesha, A; Kannan, R; Sandhya, R; Sastry, G V S; Rao, K Bhanu Sankara; Singh, Vakil (Procedia Engineering, 2013)

Thermomechanical fatigue (TMF) tests were carried out on a modified 9Cr-1Mo ferritic steel (P91) under a mechanical strain control mode using a strain amplitude of ±0.4% and a strain rate of 1.2×10−4 s−1. In-Phase (IP) and ...
Materials-development-for-fast-reactor-applications_2013_Nuclear-Engineering-and-Design

Mathew, M D (Elsevier, 2013)

Materials play a crucial role in the economic competitiveness of electricity produced from fast reactors. It is necessary to increase the fuel burn-up and design life in order to realize this objective. The burnup is ...
Application of Impression Creep Technique for Development of Creep Resistant Austenitic Stainless Steel

Mathew, M D; Naveena, V D; Vijayanand; Ganesan, V; Laha, K (Procedia Engineering, 2013)

The present paper highlights the usefulness of impression creep technique as applicable to alloy development studies of a creep resistant austenitic stainless steel which has been used as structural material for Fast Breeder ...
Creep Behaviour of 316L(N) Stainless Steel in the Presence of Notch

Mathew, M D; Ganesh Kumar, J; Ganesan, V; Laha, K (Procedia Engineering, 2013)

Creep rupture tests were conducted on plain and notched specimens of 316L(N) SS to assess the notch sensitivity of the material. The notched specimen contained a V-notch at an angle of 600 with root radius of 0.19 mm. The ...
Effect of Notch on Creep Behaviour of Weld Joint

Mathew, M D; Paretkar, R K (Procedia Engineering, 2013)

Creep testing of notched cross-weld specimens was carried out at 873 K temperature and 300 MPa stress to study the effect of notch on creep properties of 316 L (N) SS weld joint. Various stress states were achieved by ...
Creep and Low Cycle Fatigue Behaviour of Fast Reactor Structural Materials

Mathew, M D (Elsevier, 2013)
Effect of Nitrogen on Evolution of Dislocation Substructure in 316LN SS during Creep

Mathew, M D; Ganesan, V; Patrameswaran, P; Laha, K (Procedia Engineering, 2013)

Effect of nitrogen on the creep deformation behaviour and the dislocation substructure development and precipitation on creep exposure in 316LN austenitic stainless steel has been studied. Four heats of the steel with ...
Continuum Damage Mechanics Approach to Predict the Creep Behaviour of Modified 9Cr-1Mo Ferritic Steel at 873 K

Mathew, M D; Christopher, J; Sainath, G; Srinivasan, V S; Isaac Samuel, E; Choudhary, B K; Jayakumar, T (Procedia Engineering, 2013)

The paper deals with the prediction of creep behaviour of modified 9Cr-1Mo ferritic steel at 873 K using continuum damage mechanics (CDM) approach. Creep data as well as the quantitative microstructural information available ...
Creep Properties of Grade T91 Steam Generator tube steel at 923 K

Mathew, M D; Rao Palaparti, D P; Isaac Samuel, E; Choudhary, B K (Procedia Engineering, 2013)

Creep-rupture properties of T91 steam generator (SG) tube steel have been examined at 923 K in normalised and tempered condition in the stress range 55-150 MPa. At all stress conditions, the creep deformation was characterised ...
Effect of Notch on Creep Behaviour of 316 L(N) Stainless Steel

Mathew, M D; Paretkar, R K; Charde, S R; Ballal, A R; Peshwe, D R (Procedia Engineering, 2013)

Creep tests on 316 L (N) stainless steel notched specimens with varying notch acuity were carried out and notch effect was studied. Various multiaxial stress states were generated by providing circumferential V-notch. The ...
Comparative Evaluation of the Low Cycle Fatigue Behaviours of P91 and P92 Steels

Mathew, M D; Ravi, S; Laha, K; Vijayaraghavan, S; Shanmugavel, M; Rajan, K K; Jayakumar, T (Procedia Engineering, 2013)

In the present paper, low cycle fatigue (LCF) behaviour of modified 9Cr-1Mo steel (P91 steel) and tungsten allo ed 9Cr steel (P92 steel) is presented. Total axial strain controlled fatigue tests were performed in air ...
Creep Deformation and Rupture Behaviour of P92 Steel at 923 K

Mathew, M D (Procedia Engineering, 2013)

Creep deformation and rupture behaviour of P92 steel has been examined at 923 K for stresses ranging from 75 to 150 MPa. The steel exhibited well defined primary, secondary characterized by minimum creep rate and prolonged ...

Now showing items 1-20 of 44

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