| Autor: |
Chelariu RG; Faculty of Science and Material Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 41, 700050 Iasi, Romania., Cimpoesu R; Faculty of Science and Material Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 41, 700050 Iasi, Romania., Jurca AM; National Institute for Research and Development in Mine Safety and Protection to Explosion-INSEMEX, 332047 Petrosani, Romania., Popa CM; National Institute for Research and Development in Mine Safety and Protection to Explosion-INSEMEX, 332047 Petrosani, Romania., Benchea M; Faculty of Mechanical Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 61-63, 700050 Iasi, Romania., Badarau G; Faculty of Science and Material Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 41, 700050 Iasi, Romania., Istrate B; Faculty of Mechanical Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 61-63, 700050 Iasi, Romania., Cazac AM; Faculty of Science and Material Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 41, 700050 Iasi, Romania., Cimpoesu N; Faculty of Science and Material Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 41, 700050 Iasi, Romania., Pintilie DD; Doctoral School, University of Petrosani, Universitatii Street 22, 332006 Petrosani, Romania., Vasilescu GD; National Institute for Research and Development in Mine Safety and Protection to Explosion-INSEMEX, 332047 Petrosani, Romania.; Doctoral School, University of Petrosani, Universitatii Street 22, 332006 Petrosani, Romania., Bejinariu C; Faculty of Science and Material Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron, 41, 700050 Iasi, Romania.; Academy of Romanian Scientists, Ilfov 3, 050044 Bucharest, Romania. |
| Abstrakt: |
We developed and analyzed a novel non-sparking material based on CuAlBe for applications in potentially explosive environments. Using a master alloy of CuBe, an established material for anti-sparking tools used in oil fields, mines, or areas with potentially explosive gas accumulations, and pure Al, we used an Ar atmosphere induction furnace to obtain an alloy with ~10 wt% Al and ~2 wt% Be percentages and good chemical and structural homogeneity. The new material was tested in an explosive gaseous mixture (10% H 2 or 6.5% CH 4 ) under extremely strong wear for 16,000 cycles, and no hot sparks capable of igniting the environment were produced. The material was used in the form of hot-rolled plates obtained from melted ingots. The experimental results reflect the use of a suitable material for non-sparking tools. This material has good deformability during hot rolling, abnormal grain growth during deformation under heat treatment and special thermo-mechanical processing, and no high chemical composition variation. Additionally, there are slightly different corrosion resistance and mechanical properties between the melt and hot-rolled state of CuAlBe material. Through hot rolling, the material's corrosion resistance increased, reducing the chances of generating sparks capable of causing explosions. |
