WEAR RESISTANCE OF STELLITE 6 COATINGS AT HIGH TEMPERATURE

被引：1

作者：

Kumar, Mukund ^{[1
]}

Kumar, Satish ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Mech Engn, Jamshedpur 831014, Jharkhand, India

来源：

SURFACE REVIEW AND LETTERS | 2024年 / 31卷 / 12期

关键词：

Stellite; 6; HVOF technology; erosion wear; high temperature; SOLID PARTICLE EROSION; MICROSTRUCTURAL EVOLUTION; BEHAVIOR; OXIDATION; COBALT; MECHANISMS; CORROSION; NICKEL; STEEL;

D O I：

10.1142/S0218625X24500926

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：

Stellite 6 is a superalloy primarily composed of cobalt, known for its exceptional resistance to corrosion and wear at elevated temperatures. The current investigation involved the application of a co-based Stellite 6 coating on SS 304 boiler heat exchanger steel using HVOF technology. The objective was to boost surface wear resistance against elevated temperature. Protective coatings are widely employed across various industries to enhance resistance to erosion and wear of engineering components. The corrosion behavior of coated and uncoated steel was assessed under various conditions, including impact velocity, impact angle, and time duration, using a high-temperature air-jet erosion tester. Microploughing, cracking cutting, and hard phase pull-outs were all erosion processes seen in the coatings. Among the samples that were tested, it was observed that the Stellite 6 coating applied on SS 304 exhibited the lowest erosion rate. This study aims to facilitate the selection and optimization of coating materials suitable for applications in industry that require enhanced resistance against erosion wear under high-temperature conditions.

引用

页数：11

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