Explanation on some key changes for national standard GB/T 5027��2016
LI Rong feng1��TU Ying-hong1��ZHOU Qi2
��1. Research and Development Center�� Wuhan Iron and SteelGroup Corp.�� Wuhan 430080�� China ��2. Guangdong Inspection and Quarantine Technology Centre�� Guangzhou 510625�� China��
Abstract��Several aspects in GB/T 5027��2007 were revised according to the latest research results in GB/T 5027��2016 for approval as follows�� two options including ��actual plastic strain�� and ��actual strain�� were set as theoretical basis�� the content of engineering strain was added into the subscript concept of[r]value�� the provision of assignment of[L0]value was completed�� the regressive calculation of[r]value passing through the original point was supplemented. The accuracy, operability, applicability and flexibility of measurement standard of[r]value were improved.
���ٷ棬��Ӧ�꣬�� ��. ���ұ�GB/T 5027��2016�����ؼ��仯��˵��[J]. �й������ڿ���, 2016, 34(2): 52-55.
LI Rong feng��TU Ying-hong��ZHOU Qi. Explanation on some key changes for national standard GB/T 5027��2016. Chinese Journal of Iron and Steel, 2016, 34(2): 52-55.
2016, Vol. 34 
