专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

US5133210A Thermal expansion driven indentation stress-strain system 失效
标题翻译：热膨胀驱动应力应变系统
公开(公告)号：US5133210A
公开(公告)日：1992-07-28
申请号：US475453
申请日：1990-02-06
申请人： John J. Lesko , Ronald W. Armstrong
发明人： John J. Lesko , Ronald W. Armstrong
IPC分类号： G01N3/00 , G01N3/02 , G01N3/42 , G01N3/44 , G01N33/44
CPC分类号： G01N3/42 , G01N2203/0057 , G01N2203/0071 , G01N2203/0073 , G01N2203/0076 , G01N2203/0078 , G01N2203/0082 , G01N2203/0098 , G01N2203/0222 , G01N33/44
摘要： Disclosed is a method and apparatus of indentation testing of variable types of specimens which includes mounting an indenter member onto a thermally expandable member, mounting the specimen to be tested on a pedestal, loading the specimen with the indenter member by thermally expanding the thermally expandable member and measuring applied force to and displacement of the specimen so as to determine the hardness or other material properties of the specimen. The indenter member is thermally insulated from the thermally expandable member prior to thermally expanding the thermally expandable member. The thermal expansion driven indentation system in the present invention allows for controlled application of precise and continuous reproducible loads to produce stress-strain plots. Continuous indentation testing with this system has yielded results which correlate well to Rockwell fixed load hardness tests on standard test blocks. Further, efforts in drawing relationships with tensile results have shown support for the use of continuous indentation testing for the generation of local material properties.
摘要翻译：公开了一种可变类型试样的压痕试验的方法和装置，其包括将压头构件安装在热膨胀构件上，将待测试样品安装在基座上，通过热膨胀构件将热可膨胀构件并测量样品的施加力和位移，以确定样品的硬度或其他材料性质。在热膨胀构件之前，压头构件与热膨胀构件热绝缘。本发明的热膨胀驱动的压痕系统允许控制应用精确和连续的可再现负载来产生应力应变图。使用该系统的连续压痕测试产生了与标准测试块的洛氏硬度固定载荷硬度测试良好相关的结果。此外，与拉伸结果绘制关系的努力已显示支持使用连续压痕测试来产生局部材料性质。

IPRDB

热门服务

关于我们

友情链接

联系方式