Influence of multiphase on the strain hardening behavior of 60Si2CrVAT spring steel treated by a Q–P–T process

Jiang, Yun; Liang, Yue; Yin, Cunhong; Long, Shaolei; Zhao, Fei; Yu, Xiao

doi:10.1007/s10853-018-2294-4

Cited by 9 publications

(3 citation statements)

References 31 publications

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“…55CrSi is an alloyed spring steel used to produce quality springs for suspension, valve and coil products [1]. Due to the complex stress load during service, ductility and yield strength are required for the spring steel [2][3][4]. however, the ductility and yield strength are affected with the cleanliness to the spring steel [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrogen embrittlement and non-metallic inclusions on tensile fracture properties of 55CrSi spring steel

Wang

Liang

2020

Mater. Res. Express

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The tensile fracture behavior of 55CrSi spring steels were investigated. The results demonstrate that interior inclusion and hydrogen level has a significant effect on ductility and a minimal effect on tensile strength of the spring steel. It was due to the effect of cracking from MgO-Al 2 O 3 spinel inclusion or the inclusions with a mixture of CaO, SiO 2 and part of Al 2 O 3 due to hydrogen. The results of SEM showed that the ductility reduction is connected with the formation of 'fisheye' which formed under the influence of mobile hydrogen. For the specimen containing MgO-Al 2 O 3 spinel inclusion, the fracture surface in the 'fisheye' area is mainly composed of three regions including typical quasi-cleavage mixed intergranular fracture, dimple mixed transgranular fractures and ductile fracture from the interior to the edge, whereas there is no obvious transition zone from brittle fracture to dimple fracture in the 'fisheye' area of the specimen containing inclusions with a mixture of CaO, SiO 2 and part of Al 2 O 3 .

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Section: Introductionmentioning

confidence: 99%

Effect of hydrogen embrittlement and non-metallic inclusions on tensile fracture properties of 55CrSi spring steel

Wang

Liang

2020

Mater. Res. Express

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“…Further, the SFM matrix exhibits good deformability. [21][22][23][24] For the reported 60Si2Mn and 60Si2CrVA spring steels, [27][28][29] we noted that the quasi-static mechanical properties of the spring steel treated by the Q-P-T process are significantly improved, similar to other low and medium carbon Q-P-T steels. [30] Diego-Calderón [31] and Gao et al [32] revealed the effect of RA on fatigue behavior of low (%0.25-0.28, wt%) and medium (0.42 wt%) carbon Q&P and Q-P-T steels, respectively.…”

Section: Introductionmentioning

confidence: 82%

Effects of Retained Austenite and Softened Martensite on High‐Cycle Fatigue Behavior of Spring Steel under Two Loading Modes

Qin

Zhou

Yang

et al. 2023

steel research int.

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A novel quenching-partitioning-tempering (Q-P-T) process is applied to 60Si2Mn spring steel, resulting in multiphase microstructures consisting mainly of retained austenite (RA) and softened martensite (SFM). The influence of multiphase microstructures on the high-cycle fatigue behavior of Q-P-T and traditional quenching and tempering (Q&T) spring steels are investigated under rotating-bending and tensiontension loading. The results indicate that the fatigue strength of Q-P-T spring steel with RA, SFM, and lower quenching stress increases by 23.9 and 14.4% under cyclic rotating-bending and tension-tension loadings, respectively, compared with that of Q&T spring steel. Under both loading modes, the fatigue crack of the Q-P-T spring steel is mainly initiated from the interface between the martensitic matrix and inclusions or carbides. In contrast, the fatigue crack of the Q&T spring steel is mainly initiated from the plastic area around the martensitic matrix rather than inclusions. The RA, SFM, and lower quenching stress of the Q-P-T spring steel are conducive to the formation of dimples and tear ridges in the crack propagation and ultimate failure areas, whereas the inadequate SFM and higher quenching stress of the Q&T spring steel are prone to the formation of quasi-cleavage facets and secondary cracks.

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“…Production of HCl during iron chloride hydrolysis leads at starch acidic hydrolysis, when glucose molecules are released form starch molecule. Resulted glucose molecules replace water molecules into the structure of iron aqua complexes, therefore forming iron complexes with glucose, thus preventing further condensation reactions between iron aqua complex particles, stabilizing it and limiting their size [12][13][14].…”

Section: Analysis By Scanning Electronic Microscopymentioning

confidence: 99%

Biopolymers - Carbon Sources for Composite Materials Used as Adsorbents for As (V)

Minzatu¹,

Davidescu²,

Negrea³

et al. 2019

Mat.Plast.

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Large areas of S-E of Asia (Bangladesh), East of Europe (Hungary, West of Romania, Serbia), Nord and South America contain deep ground waters contaminated with arsenic. In these areas the quantity of arsenic in deep aquifers exceeds maximum allowed concentration of 10 �g/L. In order to use these water sources new adsorbent materials are required for their treatment. A composite material based on carbon and iron-oxide (used as surface modifier) present many advantages such as: chemical stability, higher removal efficiency, possibility of regeneration and very good selectivity for As(V) ions due to presence of iron-oxide particles onto the surface. The purpose of this study was to develop a new method to obtain a composite material using cellulose and soluble starch as carbon sources for the adsorbent material and iron chloride as precursor for the surface modifier. Produced composite material was characterized using several methods: TG-DTG, SEM, EDX, RDX and FT-IR. During experimental test obtained adsorbent material was used as adsorbent for As(V) removal form aqueous solutions. Arsenic residual concentration was measured using ICP-MS method. Maximum adsorption capacity obtained for adsorption experiments was 280 �g As (V)/g of adsorbent material.

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Influence of multiphase on the strain hardening behavior of 60Si2CrVAT spring steel treated by a Q–P–T process

Cited by 9 publications

References 31 publications

Effect of hydrogen embrittlement and non-metallic inclusions on tensile fracture properties of 55CrSi spring steel

Effect of hydrogen embrittlement and non-metallic inclusions on tensile fracture properties of 55CrSi spring steel

Effects of Retained Austenite and Softened Martensite on High‐Cycle Fatigue Behavior of Spring Steel under Two Loading Modes

Biopolymers - Carbon Sources for Composite Materials Used as Adsorbents for As (V)

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