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Why Multiple Adhesion Test Methods Are Required: A Technical Interpretation o...

Coating adhesion is the core index to evaluate the bonding performance between protective coating and substrate, which determines the anti-peeling durability, corrosion resistance and long-term servic

Microstructure Rating Atlas and Evaluation Method for Quenched and Tempered C...

Quenching and tempering is the core heat treatment process for carbon structural steel, which integrates quenching and high-temperature tempering to obtain uniform and stable tempered sorbite microstr

Microstructure Rating Atlas and Evaluation Method for Normalized and Isotherm...

Carburizing steel is widely used in high-precision mechanical transmission parts, gear forgings and dynamic load-bearing components due to its excellent surface hardening performance and core toughnes

Macro Morphology, Formation Mechanism, Judgment Criteria and Detection Method...

Internal macroscopic defects are inherent discontinuous structural flaws formed during steel smelting, ingot solidification, continuous casting and hot rolling processes. These defects destroy the met

Influence of Tensile Specimen Geometric Dimensions on Mechanical Test Results

Uniaxial tensile testing is the most fundamental and authoritative method for evaluating the static mechanical properties of metallic and non-metallic materials. The geometric dimensions of tensile sp

Corrosion Characteristics and Tensile Property Evolution of Q235 Steel under ...

Q235 low-carbon steel is one of the most widely used structural steel materials in building engineering, municipal facilities, offshore auxiliary structures and mechanical equipment, featuring low cos

Comprehensive Evaluation of Surface Roughness Measurement Results: Beyond Sin...

Surface roughness is a core microscopic geometric parameter of mechanical component surfaces, which directly affects the fitting accuracy, wear resistance, fatigue performance, corrosion resistance an

Core Testing Items and Technical Connotation of Material Performance Testing

Material performance testing is a fundamental and standardized technical means to quantify the intrinsic properties, service adaptability and structural reliability of metallic, polymer, composite and

Comprehensive Design of Steel Structure Fatigue Calculation and Structural Re...

Steel structures subjected to repeated dynamic loads, alternating stresses and cyclic working conditions are prone to fatigue crack initiation and progressive expansion, which further induce structura

Causes and Mechanism of Surface Linear Defects on 42CrMo Steel Bolts

42CrMo alloy steel is a typical medium-carbon quenched and tempered steel with high strength, excellent hardenability, good fatigue resistance and stable comprehensive mechanical properties, which is

Cause Analysis of Longitudinal Cracks on Microalloyed Steel Hexagonal Head Bo...

Microalloyed steel hexagonal head bolts are widely used in automotive equipment, mechanical engineering and structural connection fields due to their fine grain structure, stable strength-toughness ma

Brief Technical Discussion on Test Methods for Hot-Rolled Ribbed Reinforcing ...

Hot-rolled ribbed reinforcing bar is the primary load-bearing steel material for reinforced concrete structures, widely adopted in building structures, bridge engineering, municipal infrastructure and