Indentation property and corrosion resistance of electroless nickel-phosphorus coatings deposited on austenitic high-Mn TWIP steel

被引：36

作者：

Hamada, A. S. ^{[1
,3
]}

Sahu, P. ^{[2
]}

Porter, D. A. ^{[1
]}

机构：

[1] Univ Oulu, Ctr Adv Steels Res, FI-90014 Oulu, Finland

[2] Jadavpur Univ, Dept Phys, Kolkata 700032, India

[3] Suez Univ, Fac Petr & Min Engn, Dept Met & Mat Engn, Suez, Egypt

来源：

APPLIED SURFACE SCIENCE | 2015年 / 356卷

关键词：

High-Mn TWIP steel; Electroless Ni-P coating; Indentation; Hardness; Elastic modulus; Corrosion resistance; NI-W-P; INSTRUMENTED INDENTATION; MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; ELASTIC-MODULUS; BEHAVIOR; HARDNESS; MICROINDENTATION; MICROSTRUCTURE; STRENGTH;

D O I：

10.1016/j.apsusc.2015.07.153

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A multilayer coating using electroless nickel-phosphorus (Ni-P) was applied on a twinning-induced plasticity (TWIP) steel containing nominally 25 wt.% Mn and 3 wt.% Al to improve the indentation hardness and corrosion properties. Microindentation tests with two different indenters, namely, a three-sided pyramidal Berkovich indenter and a ball indenter were performed to study the mechanical response, the indentation hardness and elastic modulus of the coatings in conditions: as-plated, and post treated (PT) at 350 degrees C and 700 degrees C for 1 h. The deformation morphology underneath the indenters was examined using a scanning laser microscope. The results showed that Ni-P coatings could significantly enhance the surface hardness of the TWIP steel. Significant improvement in the corrosion resistance could be observed in a sulfuric acid solution for the Ni-P coated steel compared to the uncoated substrate TWIP steel. (C) 2015 Published by Elsevier B.V.

引用

页码：1 / 8

页数：8

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