Fatigue Properties of High Strength Bolts | Zendy

Alex Marcelo | Zendy; A.Y. Uehara | Zendy; R.M. Utiyama | Zendy; Ivaldo L. Ferreira | Zendy

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Fatigue Properties of High Strength Bolts

Author(s) -

Alex Marcelo,

A.Y. Uehara,

R.M. Utiyama,

Ivaldo L. Ferreira

Publication year - 2011

Publication title -

procedia engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.32

H-Index - 74

ISSN - 1877-7058

DOI - 10.1016/j.proeng.2011.04.216

Subject(s) - tempering , fatigue limit , materials science , thread (computing) , metallurgy , quenching (fluorescence) , composite material , engineering , mechanical engineering , physics , quantum mechanics , fluorescence

The aim of this paper is to analyze fatigue properties of high strength bolts in different metallurgical conditions. M8 bolts with coarse threads were separated in seven groups, three manufactured with AISI 4135 steel and heat treated after the process of thread rolling with three tempering temperatures (TRBHT). Four groups manufactured with SCM 435H steel and same conditions. In one group, the threads were made after quenching and tempering (TRAHT). Metallographic analyses, tension, hardness, and fatigue tests were performed. All TRBHT groups presented same fatigue resistance. TRAHT group presented fatigue limit approximately 9% superior than other groups.

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