Nonmagnetic Elinvar-Type Alloys in the Mn-Cu System
-
- Masumoto Hakaru
- The Foundation; The Research Institute of Electric and Magnetic Alloys
-
- Sawaya Shôhachi
- The Foundation; The Research Institute of Electric and Magnetic Alloys
-
- Kikuchi Michio
- The Foundation; The Research Institute of Electric and Magnetic Alloys
Bibliographic Information
- Other Title
-
- Mn-Cu系非磁性エリンバー型合金について
- Mn-Cuケイ ヒジセイ エリンバーカタ ゴウキン ニ ツイテ
Search this article
Abstract
Measurements of Young’s modulus and thermal expansion at −150°∼400°C and of rigidity modulus and hardness at room temperature have been carried out with Mn-Cu alloys subjected to a variety of heat treatment and cold working. It is shown that Mn-Cu alloys containing 6.00∼57.46%Cu slow-cooled after heating for 1 hr at temperatures below 80°C from the melting points have distinct antiferromagnetic Néel points in the thermal expansion and Young’s modulus temperature curves, revealing Elinvar property. The values of Young’s modulus in annealed state were higher than those in the cold-worked or the water-quenched state, the difference being remakably large in the (α+γ) phase on the Mn side. The hardness of Mn-13∼17%Cu alloys was very high regardless of the heat treatments involved. The temperature coefficient of Young’s modulus undergo a wide variation with annealing, water-quenching, cold-working, and reheating after water-quenching or cold-working, and also with alloy composition.<BR>The curves of temperature coefficient of Young’s modulus vs. composition generally have large maxima and minima in positive and negative signs, thus indicating the Elinvar property. The highest positive temperature coefficient of Young’s modulus in the annealed state was 14.7×10−5 for the composition of 56.40%Cu. Further, the changes in rigidity modulus and its temperature coefficient with heat treatment, cold working and composition bear a close resemblance to those in Young’s modulus and its temperature coefficient.
Journal
-
- Journal of the Japan Institute of Metals and Materials
-
Journal of the Japan Institute of Metals and Materials 35 (7), 723-730, 1971
The Japan Institute of Metals and Materials
- Tweet
Details 詳細情報について
-
- CRID
- 1390282681461229184
-
- NII Article ID
- 40018257231
- 130007337377
-
- NII Book ID
- AN00187860
-
- ISSN
- 18806880
- 24337501
- 00214876
-
- NDL BIB ID
- 8372545
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed