Investigation on remelting solution heat treatment for nickel-based single crystal superalloys

Yanbin Zhang; Lin Liu; Taiwen Huang; Yafeng Li; Ziqi Jie; Jun Zhang; Wenchao Yang; Hengzhi Fu

doi:10.1016/j.scriptamat.2017.04.016

Investigation on remelting solution heat treatment for nickel-based single crystal superalloys

Yanbin Zhang, Lin Liu, Taiwen Huang, Yafeng Li, Ziqi Jie, Jun Zhang, Wenchao Yang, Hengzhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

39 Scopus citations

Abstract

To increase the peak temperature during solution heat treatment of a single crystal superalloy over the solidus, a remelting solution heat treatment is investigated. It contains two parts: a) homogenizing at mushy zone temperatures, and ignoring partial incipient melting; b) eliminating incipient melting structure by secondary solution heat treatment. After remelting solution heat treatment the refining γ′ particles uniformly distributed and the residual segregations are less than those after traditional solution heat treatment. Therefore, the rupture life at 1100 °C/150 MPa is improved from 105.3 h after traditional solution heat treatment to 141.1 h.

Original language	English
Pages (from-to)	74-77
Number of pages	4
Journal	Scripta Materialia
Volume	136
DOIs	https://doi.org/10.1016/j.scriptamat.2017.04.016
State	Published - 15 Jul 2017

Keywords

Creep
Homogenization
Incipient melting
Segregation
Superalloy

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10.1016/j.scriptamat.2017.04.016

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title = "Investigation on remelting solution heat treatment for nickel-based single crystal superalloys",

abstract = "To increase the peak temperature during solution heat treatment of a single crystal superalloy over the solidus, a remelting solution heat treatment is investigated. It contains two parts: a) homogenizing at mushy zone temperatures, and ignoring partial incipient melting; b) eliminating incipient melting structure by secondary solution heat treatment. After remelting solution heat treatment the refining γ′ particles uniformly distributed and the residual segregations are less than those after traditional solution heat treatment. Therefore, the rupture life at 1100 °C/150 MPa is improved from 105.3 h after traditional solution heat treatment to 141.1 h.",

keywords = "Creep, Homogenization, Incipient melting, Segregation, Superalloy",

author = "Yanbin Zhang and Lin Liu and Taiwen Huang and Yafeng Li and Ziqi Jie and Jun Zhang and Wenchao Yang and Hengzhi Fu",

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doi = "10.1016/j.scriptamat.2017.04.016",

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T1 - Investigation on remelting solution heat treatment for nickel-based single crystal superalloys

AU - Zhang, Yanbin

AU - Liu, Lin

AU - Huang, Taiwen

AU - Li, Yafeng

AU - Jie, Ziqi

AU - Zhang, Jun

AU - Yang, Wenchao

AU - Fu, Hengzhi

PY - 2017/7/15

Y1 - 2017/7/15

N2 - To increase the peak temperature during solution heat treatment of a single crystal superalloy over the solidus, a remelting solution heat treatment is investigated. It contains two parts: a) homogenizing at mushy zone temperatures, and ignoring partial incipient melting; b) eliminating incipient melting structure by secondary solution heat treatment. After remelting solution heat treatment the refining γ′ particles uniformly distributed and the residual segregations are less than those after traditional solution heat treatment. Therefore, the rupture life at 1100 °C/150 MPa is improved from 105.3 h after traditional solution heat treatment to 141.1 h.

AB - To increase the peak temperature during solution heat treatment of a single crystal superalloy over the solidus, a remelting solution heat treatment is investigated. It contains two parts: a) homogenizing at mushy zone temperatures, and ignoring partial incipient melting; b) eliminating incipient melting structure by secondary solution heat treatment. After remelting solution heat treatment the refining γ′ particles uniformly distributed and the residual segregations are less than those after traditional solution heat treatment. Therefore, the rupture life at 1100 °C/150 MPa is improved from 105.3 h after traditional solution heat treatment to 141.1 h.

KW - Creep

KW - Homogenization

KW - Incipient melting

KW - Segregation

KW - Superalloy

UR - http://www.scopus.com/inward/record.url?scp=85018503221&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2017.04.016

DO - 10.1016/j.scriptamat.2017.04.016

M3 - 文章

AN - SCOPUS:85018503221

SN - 1359-6462

VL - 136

SP - 74

EP - 77

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Investigation on remelting solution heat treatment for nickel-based single crystal superalloys

Abstract

Keywords

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