Effect of the Twins on Mechanical Properties of AISI 304 Stainless Steel Wire Using Electrical Current Method

Chuang, Hsu-Chi; Hung, Fei-Yi; Lui, Truan-Sheng; Chen, Lihui

doi:10.2320/matertrans.m2010262

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…In the SEM image below, it means that there are two types of fractures, namely dimple which has ductile properties, but there is also cleavage which shows that the brittle nature of the image [12]. Where in the picture that the morphological fracture in the HAZ of steel is clearly affected by the welding heat input [13].…”

Section: Graph 1 Hardness Of St 70 At Weld Metala and Haz Areamentioning

confidence: 99%

“…Figure 6 shows the content of dimple and cleavage is seen in a form of morphological results where the dominant one is dimple at PWHT temperature of 600 °C, while for cleavage looks more dominant at 700 °C, the cleavage level is dominant according to the results of the hardness test where the hardness results shows the lowest level of hardness at 700 °C due to the nature of the brittle cleavage. That to reduce brittle in the welding process it is necessary to use medium or small welding heat to get a lot of dimple [13].…”

Section: Graph 1 Hardness Of St 70 At Weld Metala and Haz Areamentioning

confidence: 99%

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Phase Identification and Mechanical Properties on Post Weld Heat Treatment of Steel St.70

Angkasa

Prastya

Puspitasari

et al. 2020

KEM

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In this era, technological advances in the field of construction and industry cannot be separated from welding, while the welding of medium carbon steel is a material that is widely applied using electric arc shielded electrodes and to obtain good results a post weld heat treatment (PWHT) process can be carried out. One of the heat treatments that can be applied to the post weld heat treatment is stress relief annealing. So in this paper a test was conducted to determine the value of ST70 hardness and steel phase from welding with stress relief temperature variations of annealing 600°C, 650°C, and 700°C in the weld metal area and heat affected zone. To find out the results of testing of the post weld heat treatment process with annealing stress relief method at temperatures of 600°C, 650°C, and 700°C in the weld metal area and heat affected zone, the tests used were microstructure, micro vickers hardness and X-Ray Diffraction. The results of the hardness test show that without the post weld heat treatment process the hardness in the heat affected zone is 311.8 HV and in the weld metal area is 329 HV. Whereas from the results of the diffraction phase analysis in the heat affected zone the development of grain size rises regularly along with the increase in temperature in the stress relief annealing process.

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Section: Graph 1 Hardness Of St 70 At Weld Metala and Haz Areamentioning

confidence: 99%

Section: Graph 1 Hardness Of St 70 At Weld Metala and Haz Areamentioning

confidence: 99%

Phase Identification and Mechanical Properties on Post Weld Heat Treatment of Steel St.70

Angkasa

Prastya

Puspitasari

et al. 2020

KEM

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“…13) Its mechanism is an electrical current induced crystallization (EIC). 14,15) Thus, this paper not only investigates the crystallographic texture of nano Ag thin film (30 400 nm), but also discusses the solidification residual stress before and after EIC testing, as well as the near surface hardness and conductivity so as to further understand the potential for use as a thin film material.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Crystallization on Mechanical Mechanism and Residual Stress of Sputtered Ag Thin Films

Hung

Lui

et al. 2012

Mater. Trans.

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Silver film is widely used in optoelectronic and semiconductor industries, but its stress problem has not been verified. Sputtered Ag films of different thicknesses were used to investigate the effect of the crystallization on their solidification residual stress and electrical properties. From XRD data (2ª > 90°), an increase the thickness of the Ag film from 30 to 400 nm, not only raised the index of crystallization, but also obtained a lower resistivity. However, the peak (331) had a dissolution tendency due to the residual stress. The grain size of Ag films with greater thickness had grown because of the longer sputtering duration. Due to variations in the crystallized texture, the 30 and 110 nm films showed no sign of elasticity under nano-indentation testing. Under low-energy XRD (30 kV-20 µA), the 30 nm film not only had more residual stress, but also formed a new plane of diffraction at 104.2°of 2ª and the actual compressive stress value was 14.94 MPa. After an electrical current induced crystallization (EIC) test, the resistivity and residual stress of Ag film were improved.

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“…7,9,10) Electrical current testing is a low temperature process carried out in atmosphere. 11) Its mechanism is an electrical current induced crystallization (EIC) 12,13) that has been largely ignored in the optoelectronic thin films until now. So, the present study performed electrical current experiments on In thin film to discuss the electrical current crystallization characteristics of the IGZO/In structure at low temperature (During electrical current testing, the surface temperature of the film was raised by joule heat and was <455 K).…”

Section: Introductionmentioning

confidence: 99%

Microstructural Characteristics of InGaZnO Thin Film Using an Electrical Current Method

et al. 2012

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This research studied the microstructural characteristics and electronic properties of IGZO1114 films (atomic ratio In : Ga : Zn : O = 1 : 1 : 1 : 4) with different annealing conditions. The solid-state electrical current method was used in the IGZO/In films (In layer was a channel) and the interface effect on the electrical current mechanism was discussed. The experimental results show the effect of the annealing temperature was larger than that of the deposition oxygen flow rate for the film resistances. IGZO film which was annealed at 575 K was able to stabilize the composition of the matrix. The electrical current experiment at room temperature confirmed that the diffusion of the IGZO/In film occurred through an electric current induced crystallization (EIC). The In layer not only assisted the recrystallization behavior of the IGZO film, but also improved the electrical resistance.

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Effect of the Twins on Mechanical Properties of AISI 304 Stainless Steel Wire Using Electrical Current Method

Cited by 5 publications

References 16 publications

Phase Identification and Mechanical Properties on Post Weld Heat Treatment of Steel St.70

Phase Identification and Mechanical Properties on Post Weld Heat Treatment of Steel St.70

The Effects of Crystallization on Mechanical Mechanism and Residual Stress of Sputtered Ag Thin Films

Microstructural Characteristics of InGaZnO Thin Film Using an Electrical Current Method

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