The cliff-valley approach in the P-maps of PM/W joints for manufacturing the dual-alloys turbine disc

Yongquan Ning; Bingchao Xie; Zekun Yao; Hongzhen Guo; Mingwang Fu

doi:10.1016/j.proeng.2017.10.1069

The cliff-valley approach in the P-maps of PM/W joints for manufacturing the dual-alloys turbine disc

Yongquan Ning, Bingchao Xie, Zekun Yao, Hongzhen Guo, Mingwang Fu

Research output: Journal article publication › Conference article › Academic research › peer-review

Abstract

Published by Elsevier Ltd. In present work, hot deformation behavior of Ni-based dual-alloys has been investigated using processing map (P-map) at the temperatures of 1020-1140°C and strain rates of 0.001-1.0s-1. The processing map approach was further adopted to optimize hot forging process of dual-property turbine disc. Optimum processing condition is (Topi: 1140°C, ϵopi: 1.0s-1) with the peak efficiency of 0.55 for processing dual-alloys. In addition, a new method to find the instability criterion (Cliff-Valley) from power dissipation map has been reported. The "cliff" and "valley" features are the sufficient condition of flow instability. The results indicate that P-map approach could be used to optimize the forging parameter for dual-alloys.

Original language	English
Pages (from-to)	1117-1122
Number of pages	6
Journal	Procedia Engineering
Volume	207
DOIs	https://doi.org/10.1016/j.proeng.2017.10.1069
Publication status	Published - 1 Jan 2017
Event	International Conference on the Technology of Plasticity, ICTP 2017 - Hucisko, United Kingdom Duration: 17 Sept 2017 → 22 Sept 2017

Keywords

Dual-alloys turbine disc
Instability criterion
Microstructure evolution
Ni-based superalloys
Processing maps

ASJC Scopus subject areas

General Engineering

More information

10.1016/j.proeng.2017.10.1069

http://hdl.handle.net/10397/74979

Cite this

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title = "The cliff-valley approach in the P-maps of PM/W joints for manufacturing the dual-alloys turbine disc",

abstract = "Published by Elsevier Ltd. In present work, hot deformation behavior of Ni-based dual-alloys has been investigated using processing map (P-map) at the temperatures of 1020-1140°C and strain rates of 0.001-1.0s-1. The processing map approach was further adopted to optimize hot forging process of dual-property turbine disc. Optimum processing condition is (Topi: 1140°C, ϵopi: 1.0s-1) with the peak efficiency of 0.55 for processing dual-alloys. In addition, a new method to find the instability criterion (Cliff-Valley) from power dissipation map has been reported. The {"}cliff{"} and {"}valley{"} features are the sufficient condition of flow instability. The results indicate that P-map approach could be used to optimize the forging parameter for dual-alloys.",

keywords = "Dual-alloys turbine disc, Instability criterion, Microstructure evolution, Ni-based superalloys, Processing maps",

author = "Yongquan Ning and Bingchao Xie and Zekun Yao and Hongzhen Guo and Mingwang Fu",

year = "2017",

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doi = "10.1016/j.proeng.2017.10.1069",

language = "English",

volume = "207",

pages = "1117--1122",

journal = "Procedia Engineering",

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note = "International Conference on the Technology of Plasticity, ICTP 2017 ; Conference date: 17-09-2017 Through 22-09-2017",

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TY - JOUR

T1 - The cliff-valley approach in the P-maps of PM/W joints for manufacturing the dual-alloys turbine disc

AU - Ning, Yongquan

AU - Xie, Bingchao

AU - Yao, Zekun

AU - Guo, Hongzhen

AU - Fu, Mingwang

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Published by Elsevier Ltd. In present work, hot deformation behavior of Ni-based dual-alloys has been investigated using processing map (P-map) at the temperatures of 1020-1140°C and strain rates of 0.001-1.0s-1. The processing map approach was further adopted to optimize hot forging process of dual-property turbine disc. Optimum processing condition is (Topi: 1140°C, ϵopi: 1.0s-1) with the peak efficiency of 0.55 for processing dual-alloys. In addition, a new method to find the instability criterion (Cliff-Valley) from power dissipation map has been reported. The "cliff" and "valley" features are the sufficient condition of flow instability. The results indicate that P-map approach could be used to optimize the forging parameter for dual-alloys.

AB - Published by Elsevier Ltd. In present work, hot deformation behavior of Ni-based dual-alloys has been investigated using processing map (P-map) at the temperatures of 1020-1140°C and strain rates of 0.001-1.0s-1. The processing map approach was further adopted to optimize hot forging process of dual-property turbine disc. Optimum processing condition is (Topi: 1140°C, ϵopi: 1.0s-1) with the peak efficiency of 0.55 for processing dual-alloys. In addition, a new method to find the instability criterion (Cliff-Valley) from power dissipation map has been reported. The "cliff" and "valley" features are the sufficient condition of flow instability. The results indicate that P-map approach could be used to optimize the forging parameter for dual-alloys.

KW - Dual-alloys turbine disc

KW - Instability criterion

KW - Microstructure evolution

KW - Ni-based superalloys

KW - Processing maps

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U2 - 10.1016/j.proeng.2017.10.1069

DO - 10.1016/j.proeng.2017.10.1069

M3 - Conference article

SN - 1877-7058

VL - 207

SP - 1117

EP - 1122

JO - Procedia Engineering

JF - Procedia Engineering

T2 - International Conference on the Technology of Plasticity, ICTP 2017

Y2 - 17 September 2017 through 22 September 2017

ER -

The cliff-valley approach in the P-maps of PM/W joints for manufacturing the dual-alloys turbine disc

Abstract

Keywords

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