Preliminary Microstructural and Microscratch Results of Ni-Cr-Fe and Cr3C2-NiCr Coatings on Magnesium Substrate

被引：8

作者：

Istrate, B. ^{[1
]}

Munteanu, C. ^{[1
]}

Lupescu, S. ^{[1
]}

Benchea, M. ^{[1
]}

Vizureanu, P. ^{[2
]}

机构：

[1] Gheorghe Asachi Tech Univ Iasi, Fac Mech Engn, 43 D Mangeron St, Iasi 700050, Romania

[2] Gheorghe Asachi Tech Univ Iasi, Fac Mat Sci & Engn, 61-63 D Mangeron St, Iasi 700050, Romania

来源：

INTERNATIONAL CONFERENCE ON INNOVATIVE RESEARCH - ICIR EUROINVENT 2017 | 2017年 / 209卷

关键词：

THERMALLY SPRAYED COATINGS; CORROSION-RESISTANCE; BEHAVIOR; STRESS;

D O I：

10.1088/1757-899X/209/1/012024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal coatings have a large scale application in aerospace and automotive field, as barriers improving wear mechanical characteristics and corrosion resistance. In present research, there have been used two types of coatings, Ni-Cr-Fe, respectively Cr3C2-NiCr which were deposited on magnesium based alloys (pure magnesium and Mg-30Y master alloy). There have been investigated the microstructural aspects through scanning electronic microscopy and XRD analysis and also a series of mechanical characteristics through microscratch and indentation determinations. The results revealed the formation of some adherent layers resistant to the penetration of the metallic indenter, the coatings did not suffer major damages. Microstructural analysis highlighted the formation of Cr3C2, Cr7C3, Cr3Ni2, Cr7Ni3, FeNi3, CrNi phases. Also, the apparent coefficient of friction for Ni-Cr-Fe coatings presents superior values than Cr3C2-NiCr coatings.

引用

页数：6

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