Fracture failure analysis of 4Cr13 stainless steel linkages in circuit breakers

Wu, Wangping

doi:10.1016/j.csefa.2016.01.002

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…Due to its excellent properties, 4Cr13 stainless steel can be applied in several important fields, such as structural automotive applications and the petrochemical industry. During the manufacturing process, heat treatment has a significant effect on the mechanical properties of 4Cr13 components [2] . The designed service life of a ring die is 800-1000 h, and the frequent replacement and maintenance are of high cost [3] .…”

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Failure analysis of ring die of a feed pellet machine

Bai

Zheng

et al. 2020

China Foundry

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The severely worn position and failure mechanisms of the ring die of a feed pellet machine were investigated. The macroscopic and microscopic morphologies of the failed surface, the chemical composition and mechanical properties of the collected samples were analyzed using scanning electron microscopy, energy disperse spectroscopy, optical emission spectrometry, and a universal testing machine. Results show that the dip angle at the entrance of the ring die hole between the roller and ring die was severely worn. The feed powder could not be fully extruded through the dip angle at the entrance of the ring die holes, thus the density of the feed particles produced could not meet the requirements. Therefore, abrasive wear under high stress is the main reason of failure at the entrance of the ring die holes under the action of feeding powder; and cutting and fatigue spalling lead to substantial material loss. In addition, a high damp-heat environment aggravates abrasive wear on the die hole internal surface.

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confidence: 99%

Failure analysis of ring die of a feed pellet machine

Bai

Zheng

et al. 2020

China Foundry

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Failure Analysis of Ultra-High Strength Bolt of Circuit Breaker

Zou

Wang

Jiang

et al. 2019

Procedia Computer Science

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Changes in Steam Pipeline Properties after Long-term Exposure

Svobodová¹,

Beneš²,

Brabec³

2020

Manufacturing Technology

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The article deals with a practical problem solution of the steel 15 128 steam pipeline properties change after prolonged exposure. Steam pipelines made of steel are stressed for a long time at higher temperatures and pressures and under conditions that are not constant throughout the pipeline operation. During operation, it occurs in the degradation processes, which are accompanied by changes in structure and mechanical properties. In terms of mechanical properties, it is mainly important the impact strength. The paper examines steam pipeline after longterm exploitation and results from microstructure evaluation, fractographic analysis, and comparison of impact strength test results.

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Fracture failure analysis of 4Cr13 stainless steel linkages in circuit breakers

Cited by 5 publications

References 6 publications

Failure analysis of ring die of a feed pellet machine

Failure analysis of ring die of a feed pellet machine

Failure Analysis of Ultra-High Strength Bolt of Circuit Breaker

Changes in Steam Pipeline Properties after Long-term Exposure

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