CHEN Chang-da. Fracture Cause Analysis of 40CrNiMoA Steel Bolts[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2011, 47(9): 602-604.
Citation:
CHEN Chang-da. Fracture Cause Analysis of 40CrNiMoA Steel Bolts[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2011, 47(9): 602-604.
CHEN Chang-da. Fracture Cause Analysis of 40CrNiMoA Steel Bolts[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2011, 47(9): 602-604.
Citation:
CHEN Chang-da. Fracture Cause Analysis of 40CrNiMoA Steel Bolts[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2011, 47(9): 602-604.
Fracture cause of 40CrNiMoA steel bolts was analyzed by means of macroscopic examination, fracture analysis, metallographic examination, hardness testing and chemical composition analysis. The results showed that the fracture mechanism was the hydrogen brittleness fracture, the reason of fracture was due to high absorption content of hydrogen during producing process of the bolts.
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