| 查看: 244 | 回复: 3 | |||
| 当前主题已经存档。 | |||
han211225木虫 (正式写手)
|
[交流]
求助：钛及其合金的残余应力测定
|
||
| 各位前辈有做过的钛及其合金的残余应力测定介绍一下经验。最近想做钛及其合金的近表残余应力分布，尝试了铜靶，铬靶但峰形很差无法解析，且背底很高。那位做过介绍一下经验。谢谢。 |
回复此楼» 猜你喜欢
297求调剂
已经有12人回复
-
26调剂 086003
已经有3人回复
-
265求调剂
已经有20人回复
-
271分求调剂学校
已经有11人回复
-
320分人工智能调剂
已经有6人回复
-
求调剂，一志愿南京航空航天大学 ，080500材料科学与工程学硕
已经有8人回复
-
280求调剂
已经有19人回复
-
求材料调剂，一志愿郑州大学289分
已经有15人回复
-
26考研调剂0710 0860
已经有6人回复
-
282求调剂
已经有22人回复
2楼2007-11-27 03:52:29
han211225
木虫 (正式写手)
- 应助: 2 (幼儿园)
- 金币: 3004.5
- 散金: 59
- 帖子: 438
- 在线: 255小时
- 虫号: 338764
- 注册: 2007-04-05
- 性别: GG
- 专业: 零件加工制造
3楼2007-11-27 15:31:47
han211225
木虫 (正式写手)
- 应助: 2 (幼儿园)
- 金币: 3004.5
- 散金: 59
- 帖子: 438
- 在线: 255小时
- 虫号: 338764
- 注册: 2007-04-05
- 性别: GG
- 专业: 零件加工制造
|
The residual stress was characterized by X-ray diffraction analysis using a parallel inclination method. The Cu tube was used to generate X-rays. Operated voltage and current were 30 kV and 10 mA, respectively. The solar slit angle and width were 1 and 4 mm, respectively. The specimen was covered with a mask of 3 mm in width and 5 mm in length. The diffractive X-rays were counted for 10 s at each 0.2_ step using a scintillation counter through Ni filter at angles w . 0, 10, 20, 30, 40, 50_. Here, w is the angle between the normal to the specimen surface and the normal to the diffractive face. The diffractive plane was the (3 0 2) plane of Ti–6Al–4V, the diffractive angle 2h without strain was 148.4_ and the stress factor of X-ray diffraction analysis was -231.7 MPa/ degree. The diffractive angle was determined by a half value width method. The residual stress was calculated by a sin2 w method, i.e., the gradient of the line from the six points on the 2h _ sin2 w diagram using a least square method. 此文中的这一句The specimen was covered with a mask of 3 mm in width and 5 mm in length. 是什莫目的？ |
4楼2007-11-27 22:07:41
