|
|
|
| Fracture failure analysis of 60Si2MnA spring steel |
| YE Sheng-yuan1��XU Dao-song1��XU Xuan-xuan2��LIU Guo-bin3��WU Chuan-jia1��ZHAO Jun1 |
��1. Hangzhou Steel Metal Materials Ecommerce Ltd.��Hangzhou 310022��China
2. Zenith Steel Group Co.��Ltd.��Changzhou 213011��China
3. Shandong Special Industry Group Co.�� Ltd.��Zibo 255201��China�� |
|
|
|
|
Abstract A company used 60Si2MnA steel to manufacture the spiral compression spring for vehicles�� and the spring fracture occurred during the assembly process. The causes of spring fracture were analyzed by macroscopic test�� chemical composition analysis�� metallographic examination and scanning electron microscope analysis. The results showed that the whole section of spring was the intergranular fracture�� which was mainly caused by the surface crack defect of raw material (round steel).The overheating phenomenon of spring original structure led to the weakening of grain boundary to some extent�� which could promote its fracture.
|
|
Received: 18 January 2018
Published: 24 December 2018
|
|
|
|
| [1] |
�����ţ���ӱ�����ҵ�.���̻�е��60Si2MnA���ɶ���ʧЧ����[J].�ӱ�ұ��2010��2����45-47
|
| [2] |
����Ң.60Si2MnA��������ԭ�����[J].������Ʒ��2009,35��4����22-24
|
| [3] |
������.60Si2Mn���ɸ��������������뿪��[J].������Ʒ��2012,41��4����29-30
|
| [1] |
LIU Shao- wei,HAN Yan- shen,GUAN Min,ZHANG Bing- xiang,ZENG Fan- zheng,LIU Qing. Research on final- electromagnetic stirring position of 82B steel continuous casting based on superheat variation[J]. , 2018, 30(9): 716-722. |
| [2] |
CHEN Xin��CAI Wen-he��DONG Shu-qing��GUO De-rui. Analysis on the pre-tightening force of 12%Cr martensitic steel bolts of turbine cylinder for ultra-supercritical generating units[J]. , 2018, 36(6): 26-30. |
| [3] |
LIU Tian- long,CHEN Li- jia,BI Hong- yun,CHE Xin. High- temperature fatigue property of 18CrNbTi ferritic stainless steel[J]. , 2018, 30(4): 309-314. |
| [4] |
WU Qiang��GUO Li-bo��GUAN Ming-yue. Effect of heat treatment on mechanical properties of railway speed increasing spring steel 60Si2CrVAT[J]. , 2018, 36(4): 13-16. |
| [5] |
YANG E��CHEN Jun��ZHANG Jun��ZHOU Yang��YANG Zhi��LI Bo. Cause analysis of the abnormal fracture of tensile specimen of high strength spring steel 60Si2CrVAT[J]. , 2018, 36(4): 34-37. |
| [6] |
DAI Lin-rong��XU Xuan-xuan��ZHU Wen-kai��ZHAO Yi. Fracture analysis of large helical compression spring under pressure test[J]. , 2018, 36(3): 39-42. |
|
|
|
|
2018, Vol. 36 
