Vol. 62, No. 4, 2021

Russian Journal of Non-Ferrous Metals

Mineral Processing of Nonferrous Metals

Current Status of Copper-Ore Processing: A Review

T. N. Aleksandrova, A. V. Orlova and V. A. Taranov p. 375 abstract

Effect of Fe²⁺ and Surfactant on Low-Grade Copper–Molybdenum Ore Bioleaching and Process Optimization by Response Surface Methodology

Wei Liu, Zilong Liu and Chang Liu p. 382 abstract

Metallurgy of Nonferrous Metals

Recovery of Cobalt, Copper and Zinc from Küre-Kastamonu Historical Copper Slag by High Pressure Oxidative Acid Leaching

Abdullah Seyrankaya and Mehmet Canbazoǧlu p. 390 abstract

Research on Alumina Preparation by Electrolytic AlCl₃ Solution under NH₄Cl Catalysis

Xiu-Xiu Han, Ting-An Zhang, Guo-Zhi Lv, Xi-Juan Pan and Da-Xue Fu p. 403 abstract

Foundry

Study of the Properties of C92900 Bronze Obtained by Permanent Mold Casting, Upward Casting, and Hot Extrusion

V. E. Bazhenov, A. Yu. Titov, I. V. Shkalei, A. V. Sannikov, S. A. Tavolzhanskii, A. M. Mezrin, A. V. Koltygin, A. A. Nikitina, I. V. Plisetskaya, V. D. Belov and V. A. Yudin p. 413 abstract

Cerium Effect on the Phase Composition and Crystallization Behavior of Aluminum Casting Alloys Based on the Al–Mg–Si System

V. B. Deev, E. S. Prusov, P. K. Shurkin, E. H. Ri and S. V. Smetanyuk p. 424 abstract

Physical Metallurgy and Heat Treatment

Processability and Structure Formation of the Al–Zn–Mg–Ca–Fe–Zr–Sc Alloy upon Hot Rolling and TIG Welding

Zh. A. Karpova, P. K. Shurkin, K. I. Sivtsov and I. N. Laptev p. 431 abstract

Ensuring Strength in Laser Welds Made Using the Dispersion-Hardened EP693 Nickel Alloy

D. A. Baranov, S. S. Zhatkin, V. I. Nikitin, V. B. Deev, K. V. Nikitin, A. Yu. Barinov and D. M. Yudin p. 441 abstract

Structure and Properties of Ta–Zr Alloys Produced by High-Speed Quenching from a Liquid State

M. M. Serov, A. Yu. Patrushev, D. P. Farafonov, R. A. Valeev and A.I. Safaryan p. 448 abstract

Corrosion and Protection of Metals

Oxidation Properties of W–5% Re and W–26% Re Tungsten–Rhenium Thermocouple Wires

Min Dai, Kuihan Wang and Zhanguo Fan p. 453 abstract

Energy Saving and Environmental Protection

Novel Method for Producing Chromic Oxide without Hexavalent Chromium Pollution by Acid Leaching

Jijun Liu, Hongmei Lin, Guorong Hu and Zhongdong Peng p. 458 abstract

Production Processes and Properties of Powders

Structure Formation of Cu–W Pseudo Alloys Upon Various Methods of Their Production

S. G. Vadchenko, E. V. Suvorova, N. I. Mukhina, I. D. Kovalev and E. V. Illarionova p. 466 abstract

Theory and Processes of Forming and Sintering of Powder Materials

Features of Determining the Deformed State of a Particle Material during the Hot Stamping of Porous Moldings

B. G. Gasanov, A. A. Aganov and P. V. Sirotin p. 473 abstract

Errata

Erratum to: Study of the Change in the Structure and Properties of High-Entropic Alloys during Thermal and Thermomechanical Processing

G. R. Aripov, A. I. Bazlov, A. Yu. Churyumov, V. I. Polkin, D. V. Luzgin and S. D. Prokoshkin p. 481 abstract

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