New insights into serrated flow in Pt2Mo-type superlattice strengthened Ni-Cr-Mo alloy at room temperature

Liang Yuan; Rui Hu; Jinshan Li; Xiangyu Gao; Xiaoqing Zhang; Yan'An Yang

doi:10.1016/j.matlet.2015.10.075

New insights into serrated flow in Pt₂Mo-type superlattice strengthened Ni-Cr-Mo alloy at room temperature

Liang Yuan, Rui Hu, Jinshan Li, Xiangyu Gao, Xiaoqing Zhang, Yan'An Yang

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

It is found that the Portevin-Le Chatelier (PLC) effect can occur in a Ni-Cr-Mo alloy containing ordered phase with Pt₂Mo-type structure during uniaxial tensile tests at room temperature with strain rate of 10^-3 s^-1. The serrations exhibit an embedded characteristic, i.e. a small serration is embedded in two adjacent large serrations. Both formation of order-disorder transformation-induced twins and twinning of ordered phase itself are responsible for the occurrence of the serrations, which generally arise from dynamic strain aging (DSA) that is widely accepted as the underlying mechanism for the PLC effect.

Original language	English
Pages (from-to)	94-97
Number of pages	4
Journal	Materials Letters
Volume	163
DOIs	https://doi.org/10.1016/j.matlet.2015.10.075
State	Published - 15 Jan 2016

Keywords

Nanoparticles
Ni-Cr-Mo alloy
Phase transformation
Serrated flow behavior
Twinning

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10.1016/j.matlet.2015.10.075

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title = "New insights into serrated flow in Pt2Mo-type superlattice strengthened Ni-Cr-Mo alloy at room temperature",

abstract = "It is found that the Portevin-Le Chatelier (PLC) effect can occur in a Ni-Cr-Mo alloy containing ordered phase with Pt2Mo-type structure during uniaxial tensile tests at room temperature with strain rate of 10-3 s-1. The serrations exhibit an embedded characteristic, i.e. a small serration is embedded in two adjacent large serrations. Both formation of order-disorder transformation-induced twins and twinning of ordered phase itself are responsible for the occurrence of the serrations, which generally arise from dynamic strain aging (DSA) that is widely accepted as the underlying mechanism for the PLC effect.",

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author = "Liang Yuan and Rui Hu and Jinshan Li and Xiangyu Gao and Xiaoqing Zhang and Yan'An Yang",

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T1 - New insights into serrated flow in Pt2Mo-type superlattice strengthened Ni-Cr-Mo alloy at room temperature

AU - Yuan, Liang

AU - Hu, Rui

AU - Li, Jinshan

AU - Gao, Xiangyu

AU - Zhang, Xiaoqing

AU - Yang, Yan'An

PY - 2016/1/15

Y1 - 2016/1/15

N2 - It is found that the Portevin-Le Chatelier (PLC) effect can occur in a Ni-Cr-Mo alloy containing ordered phase with Pt2Mo-type structure during uniaxial tensile tests at room temperature with strain rate of 10-3 s-1. The serrations exhibit an embedded characteristic, i.e. a small serration is embedded in two adjacent large serrations. Both formation of order-disorder transformation-induced twins and twinning of ordered phase itself are responsible for the occurrence of the serrations, which generally arise from dynamic strain aging (DSA) that is widely accepted as the underlying mechanism for the PLC effect.

AB - It is found that the Portevin-Le Chatelier (PLC) effect can occur in a Ni-Cr-Mo alloy containing ordered phase with Pt2Mo-type structure during uniaxial tensile tests at room temperature with strain rate of 10-3 s-1. The serrations exhibit an embedded characteristic, i.e. a small serration is embedded in two adjacent large serrations. Both formation of order-disorder transformation-induced twins and twinning of ordered phase itself are responsible for the occurrence of the serrations, which generally arise from dynamic strain aging (DSA) that is widely accepted as the underlying mechanism for the PLC effect.

KW - Nanoparticles

KW - Ni-Cr-Mo alloy

KW - Phase transformation

KW - Serrated flow behavior

KW - Twinning

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U2 - 10.1016/j.matlet.2015.10.075

DO - 10.1016/j.matlet.2015.10.075

M3 - 文章

AN - SCOPUS:84946149526

SN - 0167-577X

VL - 163

SP - 94

EP - 97

JO - Materials Letters

JF - Materials Letters

ER -

New insights into serrated flow in Pt₂Mo-type superlattice strengthened Ni-Cr-Mo alloy at room temperature

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Keywords

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