ScholarLens Back to search
2004•Physical Testing and Chemical AnalysisRequires access

FAILURE ANALYSIS OF THE FRACTURE OF BOLTS OF SUPER HIGH STRENGTH

Chunliang Wang

Open publisher page 0 citations

Abstract

M56 Super high strength bolt made of 35CrMnSiA fractured at the position of the R transition area between the screw cap and the bolt, there are micro cracks at same position of the bolts of same lot which are not assembledyet. By means of metallographical examination, SEM inspection, the microstructure characteristics, chemical composition analysis and mechanical property testing, the macro-and microfractographs of the brittle broken bolt have been studied. The results show that the failure of the bolt had been damaged by hydrogen during surface treatment.

About this research paper

What this paper is about

M56 Super high strength bolt made of 35CrMnSiA fractured at the position of the R transition area between the screw cap and the bolt, there are micro cracks at same position of the bolts of same lot which are not assembledyet. By means of metallographical examination, SEM inspection, the microstructure characteristics, chemical composition analysis and mechanical property testing, the macro-and microfractographs of the brittle broken bolt have been studied. The results show that the failure of the bolt had been damaged by hydrogen during surface treatment.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

M56 Super high strength bolt made of 35CrMnSiA fractured at the position of the R transition area between the screw cap and the bolt, there are micro cracks at same position of the bolts of same lot which are not assembledyet. By means of metallographical examination, SEM inspection, the microstructure characteristics, chemical composition analysis and mechanical property testing, the macro-and microfractographs of the brittle broken bolt have been studied. The results show that the failure of the bolt had been damaged by hydrogen during surface treatment.

Key concepts: Materials science, Microstructure, Fracture (geology), Brittleness, Composite material, Macro, Structural engineering, Engineering

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
FAILURE ANALYSIS OF THE FRACTURE OF BOLTS OF SUPER HIGH STRENGTH — Research Paper | ScholarLens