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Title of Journal: Trans Indian Inst Met

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Abbravation: Transactions of the Indian Institute of Metals

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Springer India

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DOI

10.1007/s11417-012-9154-y

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0975-1645

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Effect of Longterm Ageing on the Microstructure a

Authors: C Pandey M M Mahapatra
Publish Date: 2016/02/12
Volume: 69, Issue: 9, Pages: 1657-1673
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Abstract

Present paper describes the microstructural and mechanical properties of creep strength enhanced Cr–Mo P91 steel subjected to a regime of tempering time 720–3000 h Study on the effect of varying tempering time on microstructure revealed increase in size of precipitates amount of precipitates and grain size It was also observed that compared to particle size effect of tempering time was more pronounced on the grain size The various phases that formed in the tempered P91 steel were analyzed by Xray diffraction Yield strength and tensile strength were observed to be decreasing with increase in tempering time Increase in duration of tempering time led to decrease in impact toughness of P91 specimens possibly due to cracking of secondary phase particles during straining and decohesion at precipitates and matrix interface The tempering time also observed to be affecting the hardness of P91 steel but less pronounced compared to the yield strength and tensile strength Tensile fracture and impact toughness fracture surfaces were studied by using scanning electron microscope The fracture surface of tempered P91 tensile specimens indicated increased dimples and presence of fewer cleavage facets The fracture surface of P91impact toughness specimens exhibited both inter lathdecohesion and ductile dimple tearing


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  2. Stability and Durability Study of Nano Pt Coated Titanium for Electrode Application
  3. Finite Element Simulation of Flow Localization During Equal Channel Angular Pressing
  4. Can Raman Spectroscopy be Applied for Investigating Graphite Growth in Nodular Cast Irons
  5. Strain induced melt activation — an effective route to produce high performance alloy plates and sheets
  6. High Temperature Deformation Behavior of P92 Steel
  7. Preface
  8. Characterization of friction surfaced martensitic stainless steel (AISI 410) coatings
  9. A new device for fretting fatigue testing
  10. The Influence of Cathode Surface Velocity on Friction Aided Jet Electrodeposition
  11. Influence of Interphase Anisotropy on Lamellar Eutectic Growth Patterns
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  15. Casting Solidification Feed-Path Computation and Industrial Application
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