Strength and infrared assessment of spot-welded sheets on ferrite steel

Autor:	Peng Tao, Ding Min, Pei-lei Zhang, Shi-sheng Liu, Hao Hong
Rok vydání:	2013
Předmět:	Materials science Metallurgy technology industry and agriculture Welding respiratory system Microstructure law.invention law Ferrite (iron) Thermography Electrode Spot welding Failure mode and effects analysis Tensile testing
Zdroj:	Materials & Design (1980-2015). 52:353-358
ISSN:	0261-3069
DOI:	10.1016/j.matdes.2013.05.076
Popis:	This paper addresses the mechanical properties of ferrite steel resistance spot welds during quasi-static tensile test. The mechanical properties are described in terms of peak load. It was shown that the fusion zone size is the most important. The fusion zone size can control the solidification of the grain which controlling factor of spot weld peak load. The dendritic grain and equiaxial axial grains occurred in the microstructures of the welded specimens joined at various welding currents and electrode forces. The failure mechanism of resistance spot welds during tensile test was studied with the aid of thermography. The thermography gives visible data of temperature changes on the surface of specimen. In light of the failure mechanism, the simple model is proposed to ensure pull out failure mode.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b197ab03e85e47a358e16f4c8c061533 https://doi.org/10.1016/j.matdes.2013.05.076 Zobrazit plný text záznamu Full Text from ScienceDirect