Laser cladding for wear and corrosion resistant multi-functional Cr3Si-Cr2Ni3Si metal silicides matrix composite coatings

被引：6

作者：

Wang, HM ^{[1
]}

Duan, G ^{[1
]}

Zhang, LY ^{[1
]}

Xi, WJ ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Mat, Lab Laser Mat Proc & Surface Engn, Beijing 100083, Peoples R China

来源：

LASERS IN MATERIAL PROCESSING AND MANUFACTURING | 2002年 / 4915卷

关键词：

transition metal silicide; Cr3Si; laser cladding; coatings; wear; corrosion;

D O I：

10.1117/12.482880

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Wear and corrosion resistant multi-functional Cr3Si-Cr2Ni3Si composite coatings were fabricated on substrate of an austenitic stainless steel 1Cr18Ni9Ti by laser cladding using different Cr-Si-Ni alloy powders. Microstructure, metallic dry sliding wear and electrochemical corrosion behaviors of the metal silicide matrix composite coatings were investigated as a function of the Cr3Si volume fraction. The laser clad composite coatings have a rapidly solidified microstructure consisting of Cr3Si primary dendrites and the interdendritic Cr2Ni3Si ternary metal silicide. The volume fraction of primary Cr3Si dendrites was shown to have a remarkable influence on wear and corrosion resistance of the laser clad composite coatings. The higher the volume fraction of Cr3Si, the higher he wear and corrosion resistance of the coatings.

引用

页码：162 / 166

页数：5

共 12 条

[1]

AITKEN EA, 1977, INTERMETALLIC COMPOU, P491

[2]

ANTON DL, 1991, P I S INT COMP STRUC, P37

[3] Evaluation of methods to produce tough Cr3Si based composites [J].

Cruse, TA ;

Newkirk, JW .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 240 :410-418

[4]

MCKEE DW, 1991, MATER RES SOC S P, V213, P969

[5] Mechanical behavior of molybdenum-modified Cr3Si/Cr5Si3 intermetallics [J].

Nazmy, M ;

Noseda, C ;

Augustin, S ;

Lipetzky, P ;

Stoloff, NS .

HIGH-TEMPERATURE ORDERED INTERMETALLIC ALLOYS VII, 1997, 460 :727-736

[6]

NAZMY M, 1994, MATER RES SOC S P, V364, P1333

[7] AN EVALUATION OF THE PROPERTIES OF CR3SI ALLOYED WITH MO [J].

RAJ, SV .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 201 (1-2) :229-241

[8] A PRELIMINARY ASSESSMENT OF THE PROPERTIES OF A CHROMIUM SILICIDE ALLOY FOR AEROSPACE APPLICATIONS [J].

RAJ, SV .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 192 :583-589

[9] Elevated temperature deformation of Cr3Si alloyed with Mo [J].

Raj, SV ;

Whittenberger, JD ;

Zeumer, B ;

Sauthoff, G .

INTERMETALLICS, 1999, 7 (07) :743-755

[10] EVALUATION OF REFRACTORY INTERMETALLICS WITH A15 STRUCTURE FOR HIGH-TEMPERATURE STRUCTURAL APPLICATIONS [J].

SHAH, DM ;

ANTON, DL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 153 (1-2) :402-409

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