HEAT TREATMENT AND P EFFECT ON Ni-P/SiC COATINGS HARDNESS

被引：0

作者：

Pasare, Minodora ^{[2
]}

Petrescu, Mircea Ionut ^{[1
]}

Abrudeanu, Marioara ^{[3
]}

机构：

[1] Univ Politehn Bucuresti, Fac Mat Sci & Engn, IMEMM Dept, Bucharest 060032, Romania

[2] Univ Constantin Brancusi, Fac Engn, Dept Appl Mech, Targu Jiu 210136, Romania

[3] Univ Pitesti, Fac Mecan & Technol, Technol & Management Dept, Pitesti 110040, Romania

来源：

REVUE ROUMAINE DE CHIMIE | 2008年 / 53卷 / 07期

关键词：

electrolitic co-deposition; solid state solubility extension; microhardness; ISE effect;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ni-P/SiC coatings electrolytically deposed on mild steel having P contents up to 20at.% in the Ni matrix and a constant content of SiC reinforcing particles have been investigated in three heat treatment conditions. Having in view the small thickness of the coatings (a few tens of microns) a series of small loads F in the range 15 up to 300 g have been applied on the indenter during the Vickers microhardness testing. On account of the hardness dependence on load (ISE effect) not a unique hardness value but sets of H-V -F curves have been considered to have a meaning for revealing the composition, structure and heat treatment influence on the coating hardness. The precipitation hardening heat treatment at 420 degrees C was shown to have a far larger influence in increasing the coating hardness than the increase of the P content in the Ni supersaturated solid solution.

引用

页码：563 / +

页数：6

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