scholarly journals THE EFFECT OF QUENCHING MEDIA VARIATIONS ON MICRO STRUCTURE AND VIOLENCE OF THE S45C STEEL STEEL WELDING RESULTS

2019 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Bagus Supriyadi Nur Haq
Keyword(s):  
Comparative Research ◽  
Raw Material ◽  
Shielded Metal Arc Welding ◽  
Hardness Tester ◽  
Quenching Media ◽  
Average Hardness ◽  
Metal Arc Welding ◽  
Experiment Method ◽  
Water Media ◽  
Martensite Structure

The purpose of this research is to find out the effect of current on microstructure and hardness value in S45C steel before (raw material) and after welding using Shielded Metal Arc Welding (SMAW). This research using experiment method. The Technique of data analysis using descriptive comparative research. The instruments that used for testing microstructure and hardness is Olympus Metallurgical Microscope and Vickers Hardness Tester. Based on the results of the research conclude that (1) the results of the microstructure testing showed the improved martensite structure after welding. In the raw material, martensite structure didn’t exist but the result of SMAW welding methods using quenching media of water, oil, and air that showed martensite structure was exist. (2) The hardness value of raw material is 232 VHN. The specimen with water media had highest average hardness value that is 411 VHN, oil media had average hardness value that is 308 VHN, air media had lowest average hardness value that is 263 VHN. This research showed that the result of SMAW welding using varying quenching media can changed the microstructure and hardness of S45C steel.

scholarly journals STRUKTUR MIKRO DAN KEKERASAN BAJA S45C PADA PENGELASAN SMAW DENGAN VARIASI MEDIA QUENCH

2019 ◽  
Vol 12 (1) ◽  
pp. 30
Author(s):  
Nizam Effendi
Keyword(s):  
Comparative Research ◽  
Raw Material ◽  
Shielded Metal Arc Welding ◽  
Hardness Tester ◽  
Quenching Media ◽  
Average Hardness ◽  
Metal Arc Welding ◽  
Experiment Method ◽  
Water Media ◽  
Martensite Structure

<p>The purpose of this research is to find out the effect of current on microstructure and hardness value in S45C steel before (raw material) and after welding using Shielded Metal Arc Welding (SMAW). This research using experiment method. The Technique of data analysis using descriptive comparative research. The instruments that used for testing microstructure and hardness is Olympus Metallurgical Microscope and Vickers Hardness Tester. Based on the results of the research conclude that (1) the results of the microstructure testing showed the improved martensite structure after welding. In the raw material, martensite structure didn’t exist but the result of SMAW welding methods using quenching media of water, oil, and air that showed martensite structure was exist. (2) The hardness value of raw material is 232 VHN. The specimen with water media had highest average hardness value that is 411 VHN, oil media had average hardness value that is 308 VHN, air media had lowest average hardness value that is 263 VHN. This research showed that the result of SMAW welding using varying quenching media can changed the microstructure and hardness of S45C steel.</p>

scholarly journals THE EFFECT OF VARIATION OF ELECTRIC CURRENT ON MICRO STRUCTURE AND HARDNESS IN SS400 STEEL WELDING PROCESS USING THE SMAW METHOD

2019 ◽  
Vol 1 (2) ◽  
pp. 81
Author(s):  
Irfan Adi Wibowo ◽  
Suharno Suharno ◽  
Indah Widiastuti
Keyword(s):  
Alloy Steel ◽  
Arc Welding ◽  
Comparative Research ◽  
Welding Process ◽  
Raw Material ◽  
Shielded Metal Arc Welding ◽  
Hardness Level ◽  
Hardness Tester ◽  
Metal Arc Welding ◽  
Ferrite Structure

<p>The objective of research was to find out the effect of current on microstructure and hardness value in Alloy Steel SS400 before (raw material) and after welding using Shielded Metal Arc Welding (SMAW).</p><p>This research uses experiment methods. Technique of analyzing data used was a descriptive comparative research. The instruments used for testing microstructure and hardness were Olympus Metallurgical Microscope and Vickers Hardness Tester.</p><p>Base on the result of research, it could be concluded that the result of microstructure testing showed the improved  ferrite structure after welding. In raw material, ferrite structure seemed to looks evenly, but the result of welding using SMAW welding method with current of I20 A, 130 A, and 140A showed that ferrite structure reduced in each specimen, so that  perlite structure was very dominant. The hardness value of hardness result showed the different hardness level. The specimen with current of 140 A had higher hardness level of 231,055 VHN than the specimen with current of 120 A (219.222 VHN) and 130 A (223,333 VHN). The result of hardness testing on raw material was 182,333 VHN. This research showed that the welding using varying current changed microstructure and affected the hardness value of Alloy Steel SS400.</p>

scholarly journals THE EFFECT OF CURRENT VARIATION ON MICRO STRUCTURE AND HARDNESS IN ALLOYSTEEL SS400 WELDING PROCESS USING SMAW METHOD

2019 ◽  
Vol 2 (1) ◽  
pp. 8
Author(s):  
Irfan Adi Wibowo
Keyword(s):  
Alloy Steel ◽  
Comparative Research ◽  
Welding Process ◽  
Raw Material ◽  
Shielded Metal Arc Welding ◽  
Hardness Level ◽  
Hardness Tester ◽  
Metal Arc Welding ◽  
Ferrite Structure ◽  
Current Variation

This research aims to find out the effect of current on microstructure and hardness value in Alloy Steel SS400 before (raw material) and after welding using Shielded Metal Arc Welding (SMAW). This research uses experiment methods. Technique of analyzing data used was a descriptive comparative research. The instruments used for testing microstructure and hardness were Olympus Metallurgical Microscope and Vikers Hardness Tester. Base on the result of research, it could be concluded that the result of microstructure testing showed the improved  ferrite structure after welding. In raw material, ferrite structure seemed to looks evenly, but the result of welding using SMAW welding method with current of I20 A, 130 A, and 140A showed that ferrite structure reduced in each specimen, so that  perlite structure was very dominant. The hardness value of hardness result showed the different hardness level. The specimen with current of 140 A had higher hardness level of 231,055 VHN than the specimen with current of 120 A (219.222 VHN) and 130 A (223,333 VHN). The result of hardness testing on raw material was 182,333 VHN. This research showed that the welding using varying current changed microstructure and affected the hardness value of Alloy Steel SS400.

scholarly journals PENGARUH PREHEAT DAN TEMPERING TERHADAP KEKERASAN DAN STRUKTUR MIKRO HASIL PENGELASAN BAJA JIS SS 400

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Saiful Askar ◽  
S. Sinarep ◽  
Nasmi Herlina Sari
Keyword(s):  
Arc Welding ◽  
Brinell Hardness ◽  
Steel Structures ◽  
Raw Material ◽  
Test Results ◽  
Shielded Metal Arc Welding ◽  
Electrode Diameter ◽  
Root Angle ◽  
Metal Arc Welding ◽  
Hardness Values

JIS steel SS 400 is one of the most common types of steel used for hot rolling steel structures general. This steel is excellented to the weldability and machinability properties. This study aimed to determine the effect of heat treatment with preheating without tempering (PTT), with preheating and tempering (PT), without preheating and without tempering (TPTT), and  without preheating tempering (TPT). The test results are then compared with the raw material specimens. Method of forming specimens using welding SMAW (Shielded Metal Arc Welding) DC reverse polarity using E7018 type electrode diameter of 4 mm. Type of seam used is V open seam with slit width and height of 2 mm and the width of the root angle 70o. This studied used a low alloy steel (JIS steel SS 400) which contain high levels of 0.20% C, maximum 0.005% S, maximum 0.005% P with repetitions each variation three times. Tests conducted it has testing the tensile strength, brinell hardness testing, and microstructure photo shoot. Value of the brinell hardness of welded joints highest in the tempering specimens without preheating, amounting with  163,911 HB hardness value. The structure of cementite and pearlite formed. While the lowest hardness values of specimens owned by raw material is 120,498 HB hardness values that form the microstructure of pearlite and ferrite. 

scholarly journals PENGARUH KUAT ARUS PADA PENGELASAN PADUAN ALUMINIUM 6061 DENGAN MENGGUNAKAN METODE LAS TIG TERHADAP KEKERASAN DAN STRUKTUR MIKRO

2019 ◽  
Vol 1 (1) ◽  
pp. 37
Author(s):  
Rochim Toat Wicaksono ◽  
Suharno Suharno ◽  
Budi Harjanto
Keyword(s):  
Comparative Research ◽  
Tig Welding ◽  
Raw Material ◽  
Hardness Testing ◽  
Hardness Level ◽  
Hardness Tester ◽  
Welding Method ◽  
Phase Surface ◽  
Alloy 6061 ◽  
Phase Width

<em>The objective of research was to find out the effect of current on microstructure and hardness value in Aluminium Alloy 6061 before (raw material) and after welding using Tungsten Inert Gas (TIG) welding method with filler rod ER4043. This research uses experiment methods. Technique of analyzing data used was a descriptive comparative research. The instruments used for testing microstructure and hardness were Olympus Metallurgical Microscope and Vikers Hardness Tester. Base on the result of research, it could be concluded that the result of microstructure testing showed the reduced Mg<sub>2</sub>Si phase width after welding. In raw material, the Mg<sub>2</sub>Si phase seemed to diffuse surrounding the α-Al phase surface, but the result of welding using TIG welding method with current of I00 A, 110 A, and 115A showed that Mg<sub>2</sub>Si phase reduced in each specimen, so that α-Al phase was very dominant. The hardness value of hardness result showed the different hardness level. The specimen with current of 110A had higher hardness level of 65.4 VHN than the specimen with current of 100 A (55.7 VHN) and 115 A (55.9 VHN). The result of hardness testing on raw material was 120.4 VHN. This research showed that the welding using varying current changed microstructure and affected the hardness value of Aluminum Alloy 6061.</em>

INCO-WELD B ELECTRODE

Alloy Digest ◽  
1984 ◽  
Vol 33 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Tensile Properties ◽  
Arc Welding ◽  
Base Alloy ◽  
Heat Treating ◽  
Alternating Current ◽  
Nickel Base Alloy ◽  
Shielded Metal Arc Welding ◽  
Metal Arc Welding ◽  
Nickel Base

Abstract INCO-WELD B is a nickel-base alloy developed for shielded metal-arc welding of nickel steels for cryogenic applications. It is similar to INCO-WELD A Electrode (Alloy Digest Ni-305, November 1984) except that it is designed for use with alternating current to minimize magnetic arc blow. It can be operated in all welding positions. This datasheet provides information on composition and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-307. Producer or source: Huntington Alloys.

INCO-WELD C

Alloy Digest ◽  
1996 ◽  
Vol 45 (1) ◽  
Keyword(s):  
Tensile Properties ◽  
Stainless Steels ◽  
Arc Welding ◽  
Carbon Steels ◽  
Alloy Electrode ◽  
Shielded Metal Arc Welding ◽  
Medium Carbon ◽  
Metal Arc Welding ◽  
Spring Steels ◽  
Medium Carbon Steels

Abstract INCO WELD C Electrode is a stainless-alloy electrode especially designed for shielded-metal-arc welding of a broad range of materials, including many difficult-to-weld compositions. It can be used in stainless steels, mild and medium-carbon steels,and spring steels. This datasheet provides information on composition, hardness, and tensile properties. It also includes information on joining. Filing Code: SS-632. Producer or source: Inco Alloys International Inc.

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