Czasopismo | INŻYNIERIA MATERIAŁOWA | Rocznik 2012 - zeszyt 6

Laser-modified boride layer formed on 100CrMnSi6-4 steel

nr katalogowy: 73488

Boriding being a thermochemical process was widely used for boride-type coating. This process generally resulted in the formation of FeB and Fe2B needle-like microstructure at the surface. The presence of iron borides, formed on the steel’s surface, increased to a high degree: hardness (up to 2000 HV), wear resistance and corrosion resistance [1÷7]. As for the main disadvantage of boriding the brittleness of borided layers, especially of FeB boride [3, 5, 7], needs to be mentioned. There are several factors that cause the brittleness of borided layers: first, the FeB and Fe2B have high hardness, second, a large hardness gradient exists between the borided layer and the substrate. There are many methods, which can lessen the brittleness of the boride layers. The top three methods are: obtaining a single-phase Fe2B layer [6, 7], the production of multicomponent and complex borided layers [8÷19] and laser-heat treatment (LHT) after boriding [20÷29]. In recent years, laser technology was widely used in many processes: the heating of materials by the laser beam, laser-heat treatment (LHT), laser welding, laser overlaying, laser alloying and synthesis of materials by the laser beam [30, 31]. The laser boriding process was also widely developed [32÷36]. In this paper, the laser surface modification was used in order to the formation of gradient boride layer on 100CrMnSi6-4 steel. The laser-heat treatment, instead of conventional hardening, was carried out, after diffusion boriding. The microstructure, the microhardness profiles, and the abrasive wear resistance were investigated and compared to the properties obtained for typical diffusion-borided layer. EXPERIMENTAL PROCEDURE 100CrMnSi6-4 steel was used for investigation. Its chemical composition was presented in Table 1. The ring-shaped specimens (external diameter ca. 20 mm, internal diameter 12 mm and height 12 mm) were used. Gas boriding was carried out in H2-BCl3 atmosp[...]

Jeśli masz wykupiony/przyznany dostęp - zaloguj się. Skorzystaj z naszych propozycji zakupu!

Publikacja


e-Publikacja (format pdf) - nr 73488 "Laser-modified boride lay..." licencja: Osobista Produkt cyfrowy	10.00 zł

Zeszyt


INŻYNIERIA MATERIAŁOWA - e-zeszyt (pdf) 2012-6 licencja: Osobista Produkt cyfrowy	65.00 zł

Prenumerata

INŻYNIERIA MATERIAŁOWA - prenumerata cyfrowa
licencja: Osobista

Produkt cyfrowy
Nowość

402.00 zł

INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna + wysyłka
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna	492.00 zł brutto 455.56 zł netto 36.44 zł VAT (stawka VAT 8%)
INŻYNIERIA MATERIAŁOWA - pakowanie i wysyłka	21.00 zł brutto 17.07 zł netto 3.93 zł VAT (stawka VAT 23%)

513.00 zł

INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS (Prenumerata papierowa + dostęp do portalu sigma-not.pl + e-prenumerata)	600.00 zł brutto 555.56 zł netto 44.44 zł VAT (stawka VAT 8%)

600.00 zł

Zeszyt

2012-6

Twój Koszyk

Publikacja

Zeszyt

Prenumerata

Zeszyt

Czasopisma