大型输出齿轮轴断齿分析
GEAR TOOTHS BROKEN ANALYSIS OF HEAVE-DUTY OUTPUT GEAR AXLE
摘 要
大型输出齿轮轴运行近2年即在侧端产生齿面脱断。采用宏、微观分析方法对断裂原因进行了分析。结果表明,齿轮轴为氢脆致裂。原材料中非金属夹杂物超标和回火处理不充分使工件产生了内部应力,引起零件内部氢气积聚,导致齿轮轴疲劳延时断裂。
齿面脱断
氢脆致裂
疲劳断裂
Gear axle
Gear tooths break
Flake and hydrogen brittleness
Fatigue fracture
Abstract
The gear tooths broken was found in heave-duty output gear axle after working for two years. Analysis was performed on the crack zone by macroscopical,microscopical and hardness testing. The results showed that the gear axle failure was resulted from hydrogen brittleness and fatigue fracture. The main reasons are enlargement of the inclusion of nonmetal and tempering insufficiency in heat treatment.
中图分类号 TH133.2
所属栏目 质量控制与失效分析
基金项目
收稿日期 2006/8/26
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备注刘庆兰(1953-),女,高级工程师。
引用该论文: LIU Qing-lan,CHENG Li,WANG Chun-li. GEAR TOOTHS BROKEN ANALYSIS OF HEAVE-DUTY OUTPUT GEAR AXLE[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2007, 43(3): 156～158
刘庆兰,程 里,王春莉. 大型输出齿轮轴断齿分析[J]. 理化检验－物理分册, 2007, 43(3): 156～158
被引情况:
【1】程里,刘庆兰,王春莉, "大型调质输入轴开裂分析",理化检验－物理分册 46, 668-671(2010)
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参考文献
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【2】上海市金属学会.金属材料缺陷金相图谱［M］.上海:上海科学出版社,1966:162-163．
【3】梁开武.关于渗碳处理小试块与大齿轮组织差异分析［J］.理化检验-物理分册,1992,28(1):53-54．
【4】Sykesc Burtonh Geggc. Hydrogen in steel manufacture［J］. Journal of the Iron and Steel Institute,1949(6):155-157．
【2】上海市金属学会.金属材料缺陷金相图谱［M］.上海:上海科学出版社,1966:162-163．
【3】梁开武.关于渗碳处理小试块与大齿轮组织差异分析［J］.理化检验-物理分册,1992,28(1):53-54．
【4】Sykesc Burtonh Geggc. Hydrogen in steel manufacture［J］. Journal of the Iron and Steel Institute,1949(6):155-157．
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