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2024

Material Science and Engineering

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Articles 1 - 3 of 3

Full-Text Articles in Engineering

Effect Of Initial Crack Length, Cross-Head Speed, And Quenching On The Fracture Toughness Of Hdpe With And Without Uv Stabilizers, A. Koriem, R. Singer, A. M. Ollick, M. Elhadary Mar 2024

Effect Of Initial Crack Length, Cross-Head Speed, And Quenching On The Fracture Toughness Of Hdpe With And Without Uv Stabilizers, A. Koriem, R. Singer, A. M. Ollick, M. Elhadary

Mansoura Engineering Journal

In materials science and engineering, understanding the fracture toughness of polymers is essential for ensuring the reliability and safety of various applications. This paper delves into the properties of high-density polyethylene (HDPE), a widely utilized polymer known for its versatility and durability. Fracture toughness, denoting a material's resistance to crack propagation, serves as a critical parameter in assessing the structural integrity of HDPE. The investigation focuses on unraveling the intricate interplay of factors influencing fracture toughness, with particular emphasis on crosshead speed, initial crack length, and the transformative effects of quenching. By exploring the relationships between these variables, our study …


Zinc And Bismuth Additives' Impacts On The Physical Properties Of Lead-Free Alloys Used In Electronic Appliances, Hesham Elzanaty, Rizk Mostafa Shalaby Jan 2024

Zinc And Bismuth Additives' Impacts On The Physical Properties Of Lead-Free Alloys Used In Electronic Appliances, Hesham Elzanaty, Rizk Mostafa Shalaby

Mansoura Engineering Journal

The goal of the current analysis was to analytically inspect how the addition of zinc and bismuth would alter the binary structure of the lead-free solder Sn-5Sb. Binary arrangement results have been stretched to the ternary arrangements Sn–5Sb–XBi or XZn (0 ≤ X ≤ 4wt.%) solder that were composed through rapid solidification processing (RSP) using the melt–spun method. The created phases were revealed through metallographic study of the formed alloys using XRD. High elastic modulus E = 32.5 GPa and good electrical resistivity = 26x10-8 .m are two characteristics of binary Sn-Sb doped with Bi. The alloy Sn–5Sb–4Zn owns the …


A Novel Method For The Production Of Pig Iron In “Hadisolb” Company (Industrial-Scale Experiments), El-Sayed A. Rassoul Jan 2024

A Novel Method For The Production Of Pig Iron In “Hadisolb” Company (Industrial-Scale Experiments), El-Sayed A. Rassoul

Mansoura Engineering Journal

The chairman of “Hadisolb” had submitted a memorandum in 1977 in which he claimed that the company will never achieve its designed capacity unless it gets rid of the threatening impurities -high alkalis & MnO- in the blast furnace burden. Meanwhile, the DR steel companies are suffering from the generated accumulated wastes which contain > 67% Fe, zero% alkalis and traces of MnO. The novel idea here is finding the best ratio between El-Gedida ore and the waste material (W.M.). In a previous investigation a series of pilot-scale sintering experiments were performed and it was concluded that the blend containing 70% …