A.Scholz
,
A.Schmidt
,
A.Samir
,
C.Berger
金属学报(英文版)
The thermomechanical fatigue behaviour of different high temperature alloys has been investigated and is under investigation respectively. The creep-fatigue behaviour of heat resistant steels was investigated by long-term service-type strain cycling tests simulating thermomechanical fatigue (TMF-) l...
关键词:
thermomechanical fatigue
,
null
,
null
R.Bardenheier
,
G.Rogers
金属学报(英文版)
Two different types of experimental techniques to perform non-isothermal, uniaxial and biaxial fatigue tests were described. A new miniaturised electrothermalmechanical test rig was presented and discussed. It enables testing of small specimens under complex thermomechanical loading conditions. In o...
关键词:
thermomechanical fatigue
,
null
,
null
肖慧
,
李晓延
,
陈健
,
雷永平
,
史耀武
稀有金属材料与工程
对热循环条件下SnAgCu/Cu焊点的热力疲劳行为进行了研究.基于热循环条件下实际倒装焊点的位移分析,设计了单焊点试样及其热力耦合加载装置.利用电阻应变测量法研究了-40～125℃热循环条件下焊点的变形行为.以电阻变化率为损伤参量,确定了焊点的损伤演变规律以及焊点热疲劳寿命.基于此,采用基于应变的C...
关键词:
SnAgCu/Cu焊点
,
热力耦合疲劳
,
失效行为
,
热循环
陈继光
,
邓文凯
,
周萍
,
江亮
中国有色金属学报
基于热机械疲劳试验,建立IN718高温合金感应加热过程中电磁场和温度场耦合的数学模型,对试样在循环加热条件下的非稳态温度场进行仿真,采用电子背散射衍射技术对试样上的晶粒尺寸进行检测并对其数据进行统计分析.结果表明:综合传热系数和风机电压呈正相关的关系;试样径向上存在温度梯度且随时间变化,最大温差为5...
关键词:
高温合金
,
热机械疲劳
,
感应加热
,
温度梯度
,
晶粒尺寸
