Microstructure and Mechanical Properties Development in Cross Roll Rolled Ni-30Cr Alloy

Kuk Hyun Song; Han Sol Kim; Won Yong Kim

doi:10.4028/www.scientific.net/MSF.706-709.2462

Paper Titles

Influence of Temperature and Strain Rate on Dynamic Softening Processes in Allvac® 718Plus™
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Oxidation Behaviors of Two and Three Phase Mo-Si-B Alloys via Si Pack Cementation
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A Brief Introduction to Alloy Phase Chemistry Determination under EPMA/SEM-EDS Conditions and its Applications
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Effect of Surface Recrystallization on the Low Cycle Fatigue Behavior of Directionally Solidified Superalloy DZ4 by In Situ SEM Studies
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Microstructure and Mechanical Properties Development in Cross Roll Rolled Ni-30Cr Alloy
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Microstructural Assessment of IN718: A Closed-Loop Fatigue Approach
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Influence of Stacking Fault Energy on Creep Mechanism of a Single Crystal Nickel-Based Superalloy Containing Re
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Solidification Structure of Incoloy800 Superalloy with Electromagnetic Field
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Modern Control Theory Applied to Remelting of Superalloys
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HomeMaterials Science ForumMaterials Science Forum Vols. 706-709Microstructure and Mechanical Properties...

Microstructure and Mechanical Properties Development in Cross Roll Rolled Ni-30Cr Alloy

Abstract:

In order to evaluate the microstructure and mechanical properties of cross roll rolled Ni-30Cr alloy, comparing with conventionally rolled material, this work was carried out. The materials were cold rolled to 90% in thickness reduction by conventional rolling and cross roll rolling methods and subsequently annealed at 700°C for 30 min. After this work, in order to evaluate the grain boundary character distributions of the materials, electron back-scattered diffraction technique was introduced. The application of cross roll rolling was more effective to develop the microstructure and mechanical properties than those of conventional rolling. As a result, the grain size was significantly refined to 1.3 μm in conventional rolling and 0.6 μm in cross roll rolling, compared to initial material (30 μm), respectively. Also, these grain refinements directly affected an increase in mechanical properties. In the present study, we systematically discussed the relationship between grain size and mechanical properties in terms of an increase in effective strain.