Laser cladding of Ni-Cr/Al2O3 composite coatings on AISI 304 stainless steel

1997 ◽  
Vol 88 (1-3) ◽  
pp. 212-218 ◽  
Author(s):  
J. Feng ◽  
M.G.S. Ferreira ◽  
R. Vilar
Keyword(s):  
Stainless Steel ◽  
Laser Cladding ◽  
Composite Coatings ◽  
304 Stainless Steel ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Al2o3 Composite

Research on Effect of Scanning Velocity on Laser Cladding AISI 304 Stainless Steel/Al2O3 Composite Coating

2013 ◽  
Vol 433-435 ◽  
pp. 2054-2057
Author(s):  
Peng Xu ◽  
Cheng Xin Lin ◽  
Xin Peng Yi ◽  
Chao Yu Zhou
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Composite Coating ◽  
Laser Cladding ◽  
Composite Coatings ◽  
304 Stainless Steel ◽  
Wear Loss ◽  
Aisi 304 Stainless Steel ◽  
Scanning Velocity ◽  
Aisi 304

AISI 304 stainless steel powder and Al2O3 powder was used to produce laser cladding composite coatings in order to improve the surface wear resistance of 45 steel. Microstructure of the composite coating was examined and analyzed by metallographic microscope. Microhardness and wear resistance of the composite under different scanning velocities were evaluated. The results show that the composite coating is composed of planar crystal, cellular crystal, dendritic crystal and fine equiaxed; the composite coatings under different technological parameters are made of the same phases, ferrite (α) and austenite (γ) phases. Microhardness of the composite is enhanced along with the increase of scanning velocity; effect of scanning velocity on wear loss of the composite coatings is not significant.

Coating of Fe-Mn-Si Shape Memory Materials on AISI 304 Stainless Steel by Laser Cladding Method

2013 ◽  
Vol 477-478 ◽  
pp. 1393-1396
Author(s):  
Peng Xu ◽  
Heng Ju ◽  
Cheng Xin Lin ◽  
Chao Yu Zhou
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Friction Coefficient ◽  
Shape Memory ◽  
Laser Cladding ◽  
304 Stainless Steel ◽  
Wear Loss ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Shape Memory Materials

Using laser cladding method, the coating of Fe-Mn-Si shape memory materials (SMM) was prepared on the surface of AISI 304 stainless steel. The microstructure and microhardness of SMM laser cladding coating were measured by using a metallographic microscope and a scanning electron microscope, respectively. The phase composition was determined by X-ray diffraction. The wear resistance was evaluated on a high speed reciprocating friction tester. The results show that microhardness of the SMM coating is about Hv263, higher than that of the substrate (Hv225); the SMM coating is composed of ε-martensite and γ-austenite phases; the average friction coefficient of the substrate and SMM coating is about 0.85 and 0.71; the SMM laser cladding coating is of excellent wear resistance validated by friction coefficient, worn-out appearance and wear loss.

Laser cladding of aluminium on AISI 304 stainless steel with high-power diode lasers

2014 ◽  
Vol 253 ◽  
pp. 214-220 ◽  
Author(s):  
A. Riveiro ◽  
A. Mejías ◽  
F. Lusquiños ◽  
J. del Val ◽  
R. Comesaña ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Laser Cladding ◽  
High Power ◽  
Diode Lasers ◽  
304 Stainless Steel ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Power Diode

Comparison of Recovery and Recrystallization in Stainless Steel Following Plane-Wave Shock Loading and Explosive Forming

1970 ◽  
Vol 28 ◽  
pp. 428-429 ◽  
Author(s):  
J. A. Korbonski ◽  
L. E. Murr
Keyword(s):  
Stainless Steel ◽  
Shock Loading ◽  
Pressure Pulse ◽  
Shock Pressure ◽  
304 Stainless Steel ◽  
Strain Rates ◽  
Two Dimensional ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Explosive Forming

Comparison of recovery rates in materials deformed by a unidimensional and two dimensional strains at strain rates in excess of 104 sec.−1 was performed on AISI 304 Stainless Steel. A number of unidirectionally strained foil samples were deformed by shock waves at graduated pressure levels as described by Murr and Grace. The two dimensionally strained foil samples were obtained from radially expanded cylinders by a constant shock pressure pulse and graduated strain as described by Foitz, et al.

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