Abstract��Tensile tests were performed on austenitic stainless steel 304 foil samples with different thickness and multiple gauge length. Testing sheets were taken at solution and cold-forming states and with variant tensile strength. Using regression analysis on percentage elongation and ratio coefficient, the main influential factors on [n] value of 304 foil were investigated and the application rule of Olive formula was summarized and its application range was developed. The results show the proper range of [L0] is from 20 mm to 90 mm and the specimen thickness (flakiness ratio) has no clear correlation with [n] value. In addition as the tensile strength of 304 cold-forming foil is greater than or equal to 750 MPa, the [n] value has positive correlation with it. Meanwhile the predicted values of [n] are presented according to the strength extent, i.e. When the tensile strength [Rm] is less than or equal to 750 MPa, the [n] value is 0.130 and completely consistent with specified value in the standard; As [Rm] changes between 760 MPa and 960 MPa, the [n] value is 0.160; While [Rm] is within the range of 1 050-1 270 MPa, the [n] value is 0.378.
����. Olive�쳤�ʻ��㹫ʽ�ڰ����岻���304�����е�Ӧ��̽��[J]. �й������ڿ���, 2015, 33(1): 17-20.
WANG Feng. Discussion on the application of Olive elongation conversion expression in austenitic stainless steel 304 foil. Chinese Journal of Iron and Steel, 2015, 33(1): 17-20.
2015, Vol. 33 
