The Influence of Tensile Rate on The Tensile Fracture Process of PA6

DOI

10.2991/icmse-16.2016.37How to use a DOI?

Keywords

Nylon 6, Tensile rate, Aggregation structure, Double yield.

Abstract

In this paper, we researched the influence of tensile rate on the tensile fracture process of PA6. The results showed that with the increase of tensile rate, the yield strength of PA6 was on the rise, and the elongation at break was on the decline. The elongation at break declined sharply when the tensile rate increased to 50 mm/min, it' s because that under the tensile rate of 50 mm/min, the PA6 crystallinity decreased obviously after stretching, the lattice was damaged seriously, and there was also a sharp decline in capacity of molecular chain segments together with plastic deformation. In low-speed PA6 tensile process, for the two peak valleys of seven sates crystallinity changing curve just respectively corresponded to the tensile states when two yield occurred in tensile process, we thought there was a certain relationship between double yield and crystal destruction. The phenomenon of double yield in low-speed tensile process might be accompanied with the destruction of the crystal.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jun Dai
AU  - Yu-Zhu Xiong
AU  - Xin Li
AU  - Ling-Feng Cui
PY  - 2016/12
DA  - 2016/12
TI  - The Influence of Tensile Rate on The Tensile Fracture Process of PA6
BT  - Proceedings of the 4th 2016 International Conference on Material Science and Engineering (ICMSE 2016)
PB  - Atlantis Press
SP  - 220
EP  - 228
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-16.2016.37
DO  - 10.2991/icmse-16.2016.37
ID  - Dai2016/12
ER  -