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Effect of Aging Temperature and Methods of Solution Treatmet on the Quench-Age-Hardening of Mild Steel

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 18 Issue 3 Page 17-21
published_at 1967
KJ00000155637.pdf
[fulltext] 429 KB
Title
軟鋼の焼入時効硬化におよぼす時効温度および溶体化処理方法の影響
Effect of Aging Temperature and Methods of Solution Treatmet on the Quench-Age-Hardening of Mild Steel
Creators Fukui Takashi
Creators Tokihiro Yoshio
Source Identifiers
On the phenomena of quench-age-hardening of mild steels have already studied by many investigators for varied composition. But, there were little basic studied on the solution heat treatment of mild steels. In this paper, the present investigators studied the effect or relationship of aging temperature and methods of solution treatment on the phenomena of quench-age-hardening of mild steels with carbon 0.07% preceded by normalizing at 900℃ through means of hardness test. The results obtained may be summarised as follows : (1) In order to produce the maximum quench-age-hardening effects it is necessary to quench after holding 1 hour about 700℃. (2) Quench-age-hardening reaches about the same maximum for aging temperature up to about 10℃. (3) When aging temperature is 20℃, quench-age-hardening have reached the maximum for about 310 hours, and it is unconcerned in temperature of solution treatment being between A_1 arrest point and 680℃. (4) When aging temperature is lower and temperature of solution treatment is between A_1 arrest point and 680℃, two steps hardening are observed in the quench-age-hardening of mild steels.
Subjects
機械工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1967
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部