Development of Ni-Base Superalloy with Operating Temperature up to 800°C for Gas Turbine Disks

被引：18

作者：

Bakradze M.M. ^{[1
]}

Ovsepyan S.V. ^{[1
]}

Buiakina A.A. ^{[1
]}

Lomberg B.S. ^{[1
]}

机构：

[1] All-Russian Scientific Research Institute of Aviation Materials (VIAM), Moscow

来源：

Inorganic Materials: Applied Research | 2018年 / 9卷 / 06期

关键词：

alloy composition; heat treatment; mechanical properties; microstructure; nickel-base superalloy; strengthening γ' phase;

D O I：

10.1134/S2075113318060035

中图分类号：

学科分类号：

摘要：

Abstract—The results of development of new nickel-base superalloy having an operating temperature up to 800°C for gas turbine disks have been presented. Structures, mechanical properties, and phase transformations of six experimental compositions have been researched. Physical and chemical modeling has been used to make a right choice of an alloy; with parameters as composition equivalents (they were based on equations of nonpolarizing ionic radii). The highest level of strength, ductility, toughness, and heat resistance was exhibited at 750°C by the Ni–Co–Cr–W–Mo–Ta–Al–Ti–Nb experimental composition with the total of aluminum, titanium, and niobium equal to 10 wt % and containing 4 wt % of tantalum. © 2018, Pleiades Publishing, Ltd.

引用

页码：1044 / 1050

页数：6

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