悬臂弯扭条件下中碳钢的超低周疲劳断裂设计

doi:10.13289/j.issn.1009-6264.2015.09.010

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	悬臂弯扭条件下中碳钢的超低周疲劳断裂设计
	段红燕; 桑元成; 李有堂
	2015-09-25
Source Publication	材料热处理学报
ISSN	ISSN：1009-6264
Volume	36 Issue:2015年09期 Pages:55-60
Abstract	为了研究中碳钢在悬臂弯扭载荷下的超低周次疲劳断裂适宜参数及断裂机理,采用SEM技术分析断口形貌,应用自制悬臂弯扭夹具和新型电液伺服高频疲劳试验机测试试样的疲劳寿命。结果表明,悬臂弯扭疲劳载荷能够达到低能耗、断面高质量、超低周次高效率的断裂设计要求,适宜的切口参数为:切口尖端半径r=0.06~0.4 mm,切口深度t/b≈0.075。悬臂弯扭载荷下中碳钢断口的疲劳源呈多源性,存在二次裂纹和撕裂棱,对裂纹扩展起主要作用的是Ⅰ型成分。
Keyword	超低周疲劳断裂设计悬臂弯扭应力断料裂纹技术
DOI	10.13289/j.issn.1009-6264.2015.09.010
URL	查看原文
Indexed By	CNKI
Language	中文
WOS Research Area	Metallurgy & Metallurgical Engineering
WOS Subject	METALLURGY METALLURGICAL ENGINEERING
CSCD ID	CSCD:5535974
Citation statistics	none
Document Type	期刊论文
Identifier	https://ir.lut.edu.cn/handle/2XXMBERH/6693
Collection	学报编辑部机电工程学院
Affiliation	兰州理工大学机电工程学院, 兰州, 甘肃 730050, 中国
First Author Affilication	Coll Mechanoelect Engn
First Signature Affilication	Coll Mechanoelect Engn
Recommended Citation GB/T 7714	段红燕,桑元成,李有堂. 悬臂弯扭条件下中碳钢的超低周疲劳断裂设计[J]. 材料热处理学报,2015,36(2015年09期):55-60.
APA	段红燕,桑元成,&李有堂.(2015).悬臂弯扭条件下中碳钢的超低周疲劳断裂设计.材料热处理学报,36(2015年09期),55-60.
MLA	段红燕,et al."悬臂弯扭条件下中碳钢的超低周疲劳断裂设计".材料热处理学报 36.2015年09期(2015):55-60.

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