为适应大型工程机械焊接用钢需要，对低合金高强度钢HG80及其焊接接头的疲劳裂纹扩展速率进行了研究。
To meet the development of steels used for the large engineering machinery, fatigue crack growth rates of a high strength low alloy steel HG80 and welded joint were investigated.
[4] 宋杰。工程机械回转接头试验系统的研究[D] 。南京： 南京林业大学， 2013。
SONG Jie. Study on Rotary Joint Test System for Engineering Machinery [D]. Nanjing: Nanjing Forestry University, 2013.
[4] 宋杰。工程机械回转接头试验系统的研究[D] 。南京： 南京林业大学， 2013。
SONG Jie. Study on Rotary Joint Test System for Engineering Machinery [D]. Nanjing: Nanjing Forestry University, 2013.
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