Effect of Nanocrystalline Nickel Powder and Co, Mo, Ta, and Al Additions on Isothermal Oxidation Behavior of Ni-17Cr Alloy

被引：4

作者：

Babalola, Bukola Joseph ^{[1
]}

Shongwe, Mxolisi Brendon ^{[1
]}

Maledi, Nthabiseng ^{[2
]}

Jeje, Samson Olaitan ^{[1
]}

Ayodele, Olusoji Oluremi ^{[3
]}

Lawan, Azeez Rominiyi ^{[1
]}

Olubambi, Peter Apata ^{[3
]}

机构：

[1] Tshwane Univ Technol, Fac Engn & Built Environm, Dept Chem Met & Mat Engn, Inst NanoEngn Res Inst, ZA-0183 Pretoria, South Africa

[2] Univ Witwatersrand, Sch Chem & Met Engn, Johannesburg, South Africa

[3] Univ Johannesburg, Sch Min Met & Chem Engn, Ctr NanoEngn & Tribocorros, Doorfontein Campus, ZA-2028 Johannesburg, South Africa

来源：

METALLOGRAPHY MICROSTRUCTURE AND ANALYSIS | 2020年 / 9卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Nickel-based alloys; Spark plasma sintering; High-energy ball milling; Oxidation; Nanocrystalline nickel powder; HIGH-TEMPERATURE OXIDATION; MECHANICAL-PROPERTIES; CYCLIC OXIDATION; SUPERALLOY; MICROSTRUCTURE; EVOLUTION; ELEMENTS; SCALE; OXIDE;

D O I：

10.1007/s13632-020-00614-9

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this paper, the effect of nanocrystalline nickel powder developed via high-energy ball milling process and the addition of Co, Mo, Ta, and Al on the isothermal oxidation behavior of Ni-17Cr binary alloy developed by spark plasma sintering system was investigated. The oxidation behavior of the sintered alloys was studied in air at 1100 degrees C for exposure period up to 312 h. The oxidation rate and kinetics show that the addition of Al and nanocrystalline nickel enhances the oxidation resistance of the binary alloy followed by Mo, Co, and Ta in their reducing order. The formation of the chromia scale was common to all the sintered alloys investigated as confirmed by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy analysis.

引用

页码：75 / 85

页数：11

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