Corrosion and wear behaviors of boronized AISI 316L stainless steel

Kayalı, Yusuf; Büyüksağiş, Aysel; Yalçin, Yılmaz

doi:10.1007/s12540-013-5019-x

Cited by 70 publications

(38 citation statements)

References 44 publications

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“…Literature data [10][11][12] reported the presence of iron borides (FeB and Fe2B) after diffusion boriding of austenitic steel. After laser boriding, Fe2B, Cr2B and Ni2B borides were identified in MZ based on the obtained XRD patterns ( Figure 5).…”

Section: Microstructurementioning

confidence: 99%

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Laser borided composite layer produced on austenitic 316L steel

Mikołajczak

Kulka

Makuch

2016

Archives of Mechanical Technology and Materials

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A B S T R A C TAustenitic 316L steel is well-known for its good resistance to corrosion and oxidation. Therefore, this material is often used wherever corrosive media or high temperatures are to be expected. The main drawback of this material is very low hardness and low resistance to mechanical wear. In this study, the laser boriding was used in order to improve the wear behavior of this material. As a consequence, a composite surface layer was produced. The microstructure of laser-borided steel was characterized by only two zones: re-melted zone and base material. In the re-melted zone, a composite microstructure, consisting of hard ceramic phases (borides) and a soft austenitic matrix, was observed. A significant increase in hardness and wear resistance of such a layer was obtained. K E Y W O R D Slaser boriding, austenitic steel, microstructure, hardness, wear resistance

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Section: Microstructurementioning

confidence: 99%

“…The thickness of these layers didn't exceed 50 µm. Pack-boronizing was also carried out for austenitic steels [10][11][12] in the range of temperature 800-950 o C, without sacrificing corrosion resistance. The microstructure consisted of two-phase boride layer (FeB + Fe2B).…”

Section: Introductionmentioning

confidence: 99%

Laser borided composite layer produced on austenitic 316L steel

Mikołajczak

Kulka

Makuch

2016

Archives of Mechanical Technology and Materials

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“…In a similar study, when the wear test results of AISI 316 boronized at 900 °C for 2 hours were examined. The coefficient of friction of the un-boronized sample was 0.7 and the wear rate was 90 x 10 -6 mm 3 x Nm -1 , the friction coefficient of the boronized sample was 0.6 and the wear rate was 15 x 10 -6 mm 3 x Nm -1 [17].…”

Section: Resultsmentioning

confidence: 92%

“…This is due to the fact that the boride layer formed on the surface of the sample is too hard. After measuring the thicknesses of the wear traces on the disc, the wear rates of the 316 L disc were obtained using following equation [17]:…”

Section: Resultsmentioning

confidence: 99%

Borlanmiş Aisi 316 Paslanmaz Çeli̇ği̇n Aşinma Davranişinin İncelenmesi̇

Topuz¹,

Aydoğmuş²

2019

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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In this study, the wear behavior of boronized AISI 316 stainless steel was investigated. The chemical analysis of the sample to be used in the experiment was carried out with optical emission spectrometry before starting the boronizing experiment. Boronizing experiment using pack-boronizing method were carried out at 950°C for 3 hours. As the boron source, a powder mixture having the commercial name Ekabor 2 consisting of SiC, B4C and KBF4, was used. As a result of the boronizing treatment, the boride layer formed on the surface of AISI 316, morphologically by Scanning Electron Microscope (SEM-BEI), thickness by optical microscope integrated visual analyze system, hardness by Vickers indenter and chemical analysis by XRD (X-ray diffraction) device, were investigated. Then, friction tests were carried out to determine the wear resistance of the boride layer. As a result, it is determined that the boron layer formed on the surface of boronized AISI 316 stainless steel, consists of a double phase iron-boride layer. This layer is a columnar morphology and homogeneous thickness. Also it has been determined to have ultra-hard and high wear resistance. BORLANMIŞ AISI 316 PASLANMAZ ÇELİĞİN AŞINMA DAVRANIŞININ İNCELENMESİ ÖZBu çalışmada borlanmış AISI 316 paslanmaz çeliğin aşınma davranışı incelenmiştir. Borlama işlemi öncesi, optik emisyon spektrometresi yardımıyla, deney numunesinin kimyasal analizi gerçekleştirilmiştir. Borlama deneyi, 950°C'de 3 saat süre ile kutu borlama yöntemi kullanılarak gerçekleştirilmiştir. Borlayıcı olarak, SiC, B4C and KBF4' den oluşmuş, ticari adı Ekabor 2 olan toz karışımı kullanılmıştır. Borlama işlemi sonucunda, AISI 316 paslanmaz çeliğin yüzeyinde oluşan borür tabakasının morfolojisi, tarama elektron mikroskobu (SEM-geri saçılan elektronlar), kalınlığı optik mikroskoba entegreli görüntü analiz sistemi, sertliği Vickers batıcı uç ile ve kimyasal analizi XRD (X-ışını difraksiyonu) cihazı ile gerçekleştirilmiştir. Daha sonra, borür tabakasının aşınma direncini belirlemek için, sürtünme testi gerçekleştirilmiştir. Sonuç olarak, borlanmış AISI 316 paslanmaz çeliğin yüzeyinde oluşan demir-borür tabakasının çift fazlı olduğu belirlenmiştir. Bu tabaka, kolonsal yapılı ve homojen kalınlıktadır. Ayrıca, çok sert ve yüksek aşınma direncine sahip olduğu belirlenmiştir.Anahtar kelimeler: AISI 316 paslanmaz çelik, kutu borlama, Ekabor 2, demir-borür tabakası, aşınma direnci

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“…The boriding process is an effective technique to improve some surface properties, such as: corrosion, hardness, fatigue strength, wear resistance, etc. [7][8][9]. The improvement of the mechanical properties of the steel surface is a result of the formation of boride inclusions in the outer layers.…”

Section: Introductionmentioning

confidence: 99%

Depth Corrosion Characteristics of Borided Layer Produced on AISI 321 Stainless Steel

Jagielska-Wiaderek

2019

Acta Phys. Pol. A

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This paper presents the results of effects of boronizing process of AISI 321 austenitic stainless steel on its electrochemical corrosion resistance. The steel samples were boronized at a temperature of 900 • C for 6 h. In this process, a mixture powder (B4C, SiC, borax), alumina (Al2O3) and potassium fluoroborate (KBF4) was used. The evaluation of the corrosion resistance of boronized stainless steel was carried out by using the so-called progressive thinning method, consisting in determination of polarisation characteristics on increasingly-deeper situated regions of the top layer. This method made it possible to determine changes in particular corrosion parameters read out from potentiodynamic polarisation curves, thus enabling the depth profiles of these parameters. Potentiodynamic polarization tests were carried out in an 0.5 M sulphate solution acidified to pH = 2.0. It is shown that unlike unmodified steel, the boron-rich outer layer does not passivate but undergoes fast dissolution both in active-and transpassive regions in the corrosion solution.

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Corrosion and wear behaviors of boronized AISI 316L stainless steel

Cited by 70 publications

References 44 publications

Laser borided composite layer produced on austenitic 316L steel

Laser borided composite layer produced on austenitic 316L steel

Borlanmiş Aisi 316 Paslanmaz Çeli̇ği̇n Aşinma Davranişinin İncelenmesi̇

Depth Corrosion Characteristics of Borided Layer Produced on AISI 321 Stainless Steel

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