Tensile Test Coupled with an EBSD Study of a GH4169 Ring Rolled Product

Author:

Wang Hao,Niu Haoyi,Wu HaoORCID,Li RengengORCID,Fan Guohua

Abstract

An in situ tensile test of the ring-rolled GH4169 alloy is performed to investigate the plastic deformation behavior at the micro level. Slip system activations are identified by slip traces captured by a scanning electron microscope and lattice orientation data acquired by electron backscattered diffraction. Our results demonstrated that the fraction of low-angle grain boundaries gradually increased upon tensile deformation, and the misorientation evolution in the grain interior was severely inhomogeneous. The Schmid factors at the grains of interest are calculated for comparison with the actual activated slip systems. Most of the slip system activation coincides with the Schmid law, as opposed to the initiation of other potential slip systems at some grains.

Funder

National Key Research & Development Plan

National Natural Science Foundation of China

Natural Science Foundation of Jiangsu Province

Priority Academic Program Development of Jiangsu Higher Education Institutions

Publisher

MDPI AG

Subject

General Materials Science

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