JPS6431034A - Indentation hardness testing method - Google Patents
Indentation hardness testing methodInfo
- Publication number
- JPS6431034A JPS6431034A JP18799387A JP18799387A JPS6431034A JP S6431034 A JPS6431034 A JP S6431034A JP 18799387 A JP18799387 A JP 18799387A JP 18799387 A JP18799387 A JP 18799387A JP S6431034 A JPS6431034 A JP S6431034A
- Authority
- JP
- Japan
- Prior art keywords
- load
- hardness
- time
- specimen
- calculated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
PURPOSE:To measure the change in the hardness of a specimen in the depth direction thereof and to measure the hardness of a multilayer structural material, by calculating the load increase quantity to the unit indentation depth at the arbitrary measuring point of time with respect to the load and indentation depth at the measuring point of time. CONSTITUTION:The load increase quantity P' (P'=dP/dD) to the load P at the arbitrary measuring point of time and the unit indentation depth D at said point of time is calculated while the load applied to a pressure element and the indentation depth thereof after the pressure element is brought into contact with the surface of a specimen. Since the instantaneous hardness of thereof is calculated on the basis of the increase quantity, the change in the hardness of the specimen in the depth direction can be calculated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18799387A JPS6431034A (en) | 1987-07-28 | 1987-07-28 | Indentation hardness testing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18799387A JPS6431034A (en) | 1987-07-28 | 1987-07-28 | Indentation hardness testing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6431034A true JPS6431034A (en) | 1989-02-01 |
Family
ID=16215749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18799387A Pending JPS6431034A (en) | 1987-07-28 | 1987-07-28 | Indentation hardness testing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6431034A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009052912A (en) * | 2007-08-23 | 2009-03-12 | Univ Nihon | Hardness and softness testing method, testing apparatus and, measuring instrument |
US8232818B2 (en) | 2009-02-19 | 2012-07-31 | Advantest America, Inc. | Probe head for a microelectronic contactor assembly, the probe head having SMT electronic components thereon |
WO2013145111A1 (en) * | 2012-03-26 | 2013-10-03 | 株式会社マツザワ | Hardness testing device and hardness testing method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819216A (en) * | 1981-07-29 | 1983-02-04 | 株式会社日立製作所 | Hose for upright type electric cleaner |
-
1987
- 1987-07-28 JP JP18799387A patent/JPS6431034A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819216A (en) * | 1981-07-29 | 1983-02-04 | 株式会社日立製作所 | Hose for upright type electric cleaner |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009052912A (en) * | 2007-08-23 | 2009-03-12 | Univ Nihon | Hardness and softness testing method, testing apparatus and, measuring instrument |
US8232818B2 (en) | 2009-02-19 | 2012-07-31 | Advantest America, Inc. | Probe head for a microelectronic contactor assembly, the probe head having SMT electronic components thereon |
US8305101B2 (en) | 2009-02-19 | 2012-11-06 | Advantest America, Inc | Microelectronic contactor assembly, structures thereof, and methods of constructing same |
WO2013145111A1 (en) * | 2012-03-26 | 2013-10-03 | 株式会社マツザワ | Hardness testing device and hardness testing method |
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