scholarly journals PENGARUH JENIS ANODA PADA PROSES PEMULIHAN LOGAM NIKEL DARI TIRUAN AIR LIMBAH ELECTROPLATING MENGGUNAKAN SEL ELEKTRODEPOSISI

REAKTOR ◽  
2013 ◽  
Vol 14 (3) ◽  
pp. 211
Author(s):  
Djaenudin Dhaenudin ◽  
Mindriany Syafila ◽  
Edwan Kardena ◽  
Isdiriayani Nurdin
Keyword(s):  
Stainless Steel ◽  
Supporting Electrolyte ◽  
Nickel Concentration ◽  
Nickel Electrodeposition ◽  
Nickel Recovery ◽  
Batch System ◽  
Best Value ◽  
Aisi 316 ◽  
Type Aisi ◽  
Artificial Solution

EFFECT OF ANODES TYPES ON NICKEL RECOVERY FROM SYNTHETIC ELECTROPLATING WASTE ELECTRODEPOSITION CELLS. A study concerning the recovery of nickel from electroplating wastewater artificial solution. The study was conducted with a batch system using electrodeposition cell consisting of two spaces separated by water hyacinth leaf, copper cathode plate, H2SO4 solution anolyte, catholyte solution of NiSO4 plus NaCl supporting electrolyte and anode varied. Electrodeposition performed at the direct current of 5V power for 4 hours each run. The research objective was to obtain the best anode in nickel electrodeposition process of electroplating waste artificial solution. Graphite, stainless steel type AISI 316 and the lead were used as a variation of the anode. Concentration of nickel in the catholyte at baseline 2200 mg/L. The results showed that the anode was a graphite anode with best value decreased by 72.44% nickel concentration, deposition of nickel on the cathode of 0.188 grams and specific energy values ​​of 6.1625 kWh/kg.nickel.   Telah dilakukan penelitian tentang pemulihan logam nikel dari larutan tiruan air limbah electroplating. Penelitian dilakukan dengan sistem batch menggunakan sel elektrodeposisi yang terdiri dari dua ruang yang dipisahkan dengan daun eceng gondok, katoda pelat tembaga, anolit larutan H2SO4, katolit larutan NiSO4 ditambah elektrolit pendukung larutan NaCl dan anoda divariasikan. Elektrodeposisi dilakukan pada listrik searah sebesar 5V selama 4 jam setiap tempuhan. Tujuan penelitian adalah memperoleh anoda terbaik pada proses elektrodeposisi nikel dari larutan tiruan limbah electroplating. Grafit, Stainless Steel  tipe AISI 316 dan timbal digunakan sebagai variasi jenis anoda. Konsentrasi nikel dalam katolit pada awal penelitian 2200 mg/L. Hasil penelitian menunjukkan bahwa anoda grafit merupakan anoda yang paling baik dengan nilai penurunan konsentrasi nikel sebesar 72,44%, deposisi nikel di katoda sebesar 0,188 gram dan nilai energi spesifik sebesar 6,1625  kWh/kg.nikel.

scholarly journals Investigation on the High Vacuum Tribological Characteristics of Surface Treated Nuclear Grade Stainless Steel Type AISI 316 LN at 25 to 500 °C

2011 ◽  
Vol 57 (12) ◽  
pp. 927-935 ◽  
Author(s):  
Ayyannan Devaraju ◽  
Ayyasamy Elayaperumal ◽  
Srinivasan Venugopal ◽  
Satish V. Kailas ◽  
Joseph Alphonsa
Keyword(s):  
Stainless Steel ◽  
High Vacuum ◽  
Nuclear Grade ◽  
Tribological Characteristics ◽  
Steel Type ◽  
Aisi 316 ◽  
Type Aisi

scholarly journals Effect of Electrolyte Composition on Nickel Removal Process from Artificial Electroplating Wastewater Using Two-Room Electrodeposition Cells

2019 ◽  
Vol 22 (4) ◽  
pp. 143-149
Author(s):  
Selly Ayu Janetasari ◽  
Djaenudin Djaenudin
Keyword(s):  
Supporting Electrolyte ◽  
Copper Plate ◽  
Nickel Concentration ◽  
Nickel Deposition ◽  
Electroplating Wastewater ◽  
Nickel Electrodeposition ◽  
Graphite Plate ◽  
Current Voltage ◽  
Direct Current Voltage ◽  
Double Chamber

Research of removal of soluble nickel from artificial electroplating wastewater has been investigated. The research aim to know optimum electrolit composition in nickel electrodeposition process. This study was conducted within a batch system using double chamber electrodeposition cell separated by water hyacinth leaf. Electrodeposition cell was equipped with a copper plate as cathode, graphite plate as anode, H2SO4 anolyte, NiSO4 catholyte with Na2SO4 added as supporting electrolyte. Electrodeposition performed at 5V direct current voltage for 4 hours each running and varied the concentration of H2SO4 anolyte (0,2 M; 0,6 M and 1 M), pHinitial catholyte (2; 4 and 6) and Na2SO4 (catholyte) supporting electrolyte (0 M; 0,2 M; 0,6 M and 1 M). The statistic analysis results showed that the concentration of 0.2 M H2SO4, pHinitial catholyte of 6 and 0.2 M Na2SO4 with an optimum concentration of nickel concentration values decrease of 18,433 % and nickel deposition on the cathode of 0.042 grams.

Processing map for mechanical working of stainless steel type AISI 316 L

1993 ◽  
Vol 28 (6) ◽  
pp. 715-720 ◽  
Author(s):  
S. Venugopal ◽  
S.L. Mannan ◽  
Y.V.R.K. Prasad
Keyword(s):  
Stainless Steel ◽  
Processing Map ◽  
Mechanical Working ◽  
Steel Type ◽  
Aisi 316 ◽  
Type Aisi ◽  
Aisi 316 L

scholarly journals Pengaruh krom pada elektrodeposisi nikel dari larutan nikel-krom

2018 ◽  
Vol 10 (2) ◽  
pp. 54
Author(s):  
Pramujo Widiatmoko ◽  
Isdiriayani Nurdin
Keyword(s):  
Economic Value ◽  
Liquid Waste ◽  
Deposition Efficiency ◽  
Nickel Concentration ◽  
Nickel Metal ◽  
Nickel Ion ◽  
Nickel Electrodeposition ◽  
Nickel Recovery ◽  
Nickel Chromium ◽  
Electroplating Process

The chromium effect on nickel electrodeposition from nickel-chromium solution Electrodeposition, which can convert nickel ion into pure nickel metal, is an alternative for reducing nickel concentration in electroplating waste and in same time increasing its economic value. The aim of this research is to study the effect of chromium presence on the performance of Nickel recovery from liquid waste of Ni-Cr electroplating process. Liquid of electroplating waste leachate is represented by solutions containing nickel and chromium sulfate method. All experiments were carried out at ambient temperature and pressure with Cr/Ni ratio and boric acid composition as variables. Result of the research shows that chromium presence in solution with 28.9% Cr/Ni ratio increases activation polarization of about 500 mV. Optimum condition of the experiment is obtained for Cr/Ni ratio 3.7%-w. Increasing Cr/Ni ratio from 3.7% to 14.8% decreases current efficiency by 57% and deposition efficiency by 5%, and also increases energy consumption by 8.3%. Morphology of deposited nickel deteriorates with increasing of Cr/Ni ratio and hydroxide compound is formed when it reaches 14.8%. Keywords: nickel electrodeposition, nickel-chromium solution, chromium, electroplating wasteAbstrakElektrodeposisi merupakan metode alternatif yang potensial untuk mengurangi kandungan nikel dari limbah elektroplating sekaligus meningkatkan nilai ekonomisnya, dengan produk berupa logam nikel murni. Penelitian ini bertujuan mengkuantifikasi pengaruh krom dalam proses pemulihan nikel dari larutan limbah industri yang mengandung nikel dan krom. Nikel sulfat dan krom sulfat digunakan sebagai pendekatan larutan hasil ekstraksi limbah padat. Percobaan dilakukan pada tekanan dan temperatur ruang dengan variasi rasio krom terhadap nikel serta konsentrasi asam borat sebagai aditif. Hasil percobaan menunjukkan bahwa keberadaan krom dengan rasio Cr/Ni 28,9% meningkatkan polarisasi aktivasi sekitar 500 mV. Kondisi optimum untuk percobaan ini diperoleh ketika rasio Cr/Ni 3,7%-berat. Perubahan rasio Cr/Ni dalam larutan dari 3,7% menjadi 14,8% menurunkan efisiensi arus sebesar 57%, menurunkan efisiensi deposisi 5%, serta meningkatkan kebutuhan energi hingga 8,3%. Morfologi deposit nikel menjadi lebih buruk dengan kenaikan rasio Cr/Ni, dan berubah menjadi deposit hidroksida pada rasio Cr/Ni 14,8%.Kata kunci: elektrodeposisi nikel, larutan nikel-krom, krom, limbah elektroplating

Experimental and Numerical Investigation into Residual Stress During Turning Operation for Stainless Steel AISI 316

2020 ◽  
Vol 38 (12A) ◽  
pp. 1862-1870
Author(s):  
Safa M. Lafta ◽  
Maan A. Tawfiq
Keyword(s):  
Stainless Steel ◽  
Residual Stresses ◽  
Orthogonal Cutting ◽  
Cutting Tools ◽  
Cutting Speed ◽  
Percentage Error ◽  
Depth Of Cut ◽  
Main Role ◽  
Turning Operation ◽  
Aisi 316

RS (residual stresses) represent the main role in the performance of structures and machined parts. The main objective of this paper is to investigate the effect of feed rate with constant cutting speed and depth of cut on residual stresses in orthogonal cutting, using Tungsten carbide cutting tools when machining AISI 316 in turning operation. AISI 316 stainless steel was selected in experiments since it is used in many important industries such as chemical, petrochemical industries, power generation, electrical engineering, food and beverage industry. Four feed rates were selected (0.228, 0.16, 0.08 and 0.065) mm/rev when cutting speed is constant 71 mm/min and depth of cutting 2 mm. The experimental results of residual stresses were (-15.75, 12.84, 64.9, 37.74) MPa and the numerical results of residual stresses were (-15, 12, 59, and 37) MPa. The best value of residual stresses is (-15.75 and -15) MPa when it is in a compressive way. The results showed that the percentage error between numerical by using (ABAQUS/ CAE ver. 2017) and experimental work measured by X-ray diffraction is range (2-15) %.

Effects of Insert Nose Radius and Processing Cutting Parameter on the Surface Roughness of Aisi 316 Stainless Steel

2010 ◽  
Vol 447-448 ◽  
pp. 51-54
Author(s):  
Mohd Fazuri Abdullah ◽  
Muhammad Ilman Hakimi Chua Abdullah ◽  
Abu Bakar Sulong ◽  
Jaharah A. Ghani
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Surface Finish ◽  
Feed Rate ◽  
Cutting Speed ◽  
Chip Thickness ◽  
Cutting Parameters ◽  
Depth Of Cut ◽  
Nose Radius ◽  
Aisi 316

The effects of different cutting parameters, insert nose radius, cutting speed and feed rates on the surface quality of the stainless steel to be use in medical application. Stainless steel AISI 316 had been machined with three different nose radiuses (0.4 mm 0.8 mm, and 1.2mm), three different cutting speeds (100, 130, 170 m/min) and feed rates (0.1, 0.125, 0.16 mm/rev) while depth of cut keep constant at (0.4 mm). It is seen that the insert nose radius, feed rates, and cutting speed have different effect on the surface roughness. The minimum average surface roughness (0.225µm) has been measured using the nose radius insert (1.2 mm) at lowest feed rate (0.1 mm/rev). The highest surface roughness (1.838µm) has been measured with nose radius insert (0.4 mm) at highest feed rate (0.16 mm/rev). The analysis of ANOVA showed the cutting speed is not dominant in processing for the fine surface finish compared with feed rate and nose radius. Conclusion, surface roughness is decreasing with decreasing of the feed rate. High nose radius produce better surface finish than small nose radius because of the maximum uncut chip thickness decreases with increase of nose radius.

Scanning Scratch Tests for Evaluating the Adhesion of Thin Oxide Films on Stainless Steel

1994 ◽  
Vol 356 ◽  
Author(s):  
V. A. C. Haanappel ◽  
H. D. van Corbach ◽  
T. Fransen ◽  
P. J. Gellings
Keyword(s):  
Mechanical Properties ◽  
Growth Rate ◽  
Stainless Steel ◽  
Film Thickness ◽  
Critical Load ◽  
Deposition Temperature ◽  
Chemical Vapour ◽  
Organic Chemical ◽  
Thin Oxide Films ◽  
Type Aisi

AbstractAmorphous alumina films were deposited by metal-organic chemical vapour deposition (MOCVD) on stainless steel, type AISI 304. The MOCVD experiments were performed in nitrogen at low pressure (0.17 kPa (1.25 torr)).The effect of deposition temperature (200 − 380 °C), growth rate, film thickness, and post-deposition thermal treatment on the mechanical properties was studied. The experiments were performed with a scanning-scratch tester. The experiments are based on the estimation of the film adhesion to the substrate by determining a critical load, Lc: the load where the film starts to spall or to delaminate.The best mechanical properties were obtained with unannealed samples. After thermal annealing the critical load decreases. Regarding the unannealed samples, the critical load increased with increasing film thickness. The deposition temperature and the growth rate had no effect on the critical load.

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