Subrata Deb Nath

Laser Powder Bed Fusion of a Ti-16Nb-Based Alloy: Processability, Microstructure, and Mechanical Properties

Azim Gökçe, Vamsi Krishna Balla, Subrata Deb Nath, Arulselvan Arumugham Akilan et autres

Titanium alloys, especially Ti6Al4V, are widely used in biomedical implants due to their biocompatibility and mechanical strength. However, their high elastic modulus (>100 GPa), compared to that of human bone (10–30 GPa), often causes stress shielding, reducing implant lifespan. To address this, …

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Effect of Macroeconomic Factors on Economic Growth: A Case Study of Bangladesh

Subrata Deb Nath, Mosammat Ambia Begum, Md. Abdul Maleque

Macroeconomic factors strongly influence the economy. It affects countries and businesses equally. The relationship between different macroeconomic factors is an area of widespread study for policymakers and economists. The ultimate purpose of this study is to assess the impact of macroeconomic factors …

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Impact of external public debt on economic growth: A case study of Bangladesh

Subrata Deb Nath, Md Rezaul Karim, Faruk Hossain, Mohammed Main Uddin

Purpose: The association between foreign (external) public debt and the economic growth has been studied extensively, with some studies showing a positive, others a negative relationship, and still others finding no significant relationship under any economic state.We choose this research with the …

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Properties of Water Atomized 25Cr7Ni Stainless Steel Processed by Laser-Powder Bed Fusion

Arulselvan Arumugham Akilan, Chang Woo Gal, Subrata Deb Nath, Azim Gökçe et autres

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Investigation of Patient-Specific Maxillofacial Implant Prototype Development by Metal Fused Filament Fabrication (MF3) of Ti-6Al-4V

Mohammad Qasim Shaikh, Subrata Deb Nath, Arulselvan Arumugham Akilan, Saleh Khanjar et autres

Additive manufacturing (AM) and related digital technologies have enabled several advanced solutions in medicine and dentistry, in particular, the design and fabrication of patient-specific implants. In this study, the feasibility of metal fused filament fabrication (MF3) to manufacture patient-specific maxillofacial implants is …

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Mechanical and corrosion properties of gas and water atomized laser-powder bed fusion fabricated 25Cr7Ni stainless steel

Arulselvan Arumugham Akilan, Subrata Deb Nath, Ravi K. Enneti, Gautam Gupta et autres

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Adapting L-PBF process for fine powders: a case study in 420 stainless steel

Subrata Deb Nath, Alfred Okello, Rajendra Kelkar, Gautam Gupta et autres

The laser-powder bed fusion (L-PBF), also known as selective laser melting (SLM), is widely processed to a narrow powder size of 15 (D10) to 45 (D90) µm. However, expanding the particle size distribution (PSD) that can be processed by L-PBF can have …

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Effect of Credit Risk on Commercial Banks’ Profitability: A Case Study of Bangladesh

Munna Rani Biswas, Subrata Deb Nath, Prasenjit Kumar Biswas, Md. Aminur Rashid

Purpose of the Study: Credit risk is the risk of default by the borrower. The major cause of a bank’s failure is the lack of proper credit risk management (CRM). The study examined the impact of the credit risk on the profitability …

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Financial Distress Prediction through Altman Z-Score Model: A Case Study of State Owned Commercial Banks of Bangladesh

Subrata Deb Nath, Prasenjit Kumer Biswas, Md. Aminur Rashid, Munna Rani Biswas

Purpose: Banks are the backbone of the economy. The bank collects money temporarily from the public and lends to other people as per need. Banks should concern about the soundness of their financial health. The purpose of this study is to predict …

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Laser powder bed fusion of in-situ composites using dry-mixed Ti6Al4V and Si3N4 powder

Arulselvan Arumugham Akilan, Azim Gökçe, Subrata Deb Nath, Vamsi Krishna Balla et autres

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Effects of layer thickness in laser-powder bed fusion of 420 stainless steel

Subrata Deb Nath, Gautam Gupta, Martin Kearns, Sundar V. Atre

Purpose The purpose of this paper is to investigate effects of layer thickness on densification, surface morphology, microstructure and mechanical and corrosion properties of 420 stainless steel fabricated by laser-powder bed fusion (L-PBF). Design/methodology/approach Standard specimens were printed at layer thickness of …

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Laser Powder Bed Fusion

Harish Irrinki, Subrata Deb Nath, Arulselvan Arumugham Akilan, Sundar V. Atre

Abstract This article focuses on a study that was performed to understand the effects of powder attributes; process parameters; and hot isostatic pressing (HIP) treatment on the densification, mechanical and corrosion properties, and microstructures of 17-4 PH stainless steel gas- and water-atomized …

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