オーステナイト系ステンレス鋼の低温水素脆化現象におよぼす熱処理および加工の影響
1983 年 47 巻 4 号 p. 365-372
詳細
1983 年 47 巻 4 号 p. 365-372
The influences of heat-treatment and cold-work on the mechanical properties at low temperatures of cathodically-hydrogen-charged austenitic stainless steels were investigated.
Results obtained are as follows.
(1) Austenitic stainless steels heat-treated at 1073 K exhibit hydrogen embrittlemet on a low temperature testing at 77 K.
(2) The susceptibility to low temperature hydrogen embrittlement (LTHE) of seven kinds of austenitic stainless steels, heat treated at 1073 K for 86.4 ks, can be arrenged in the following order;
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(3) In the case of SUS304, the materials which were heat-treated at 923-1223 K, especially at 1073-1173 K, exhibit the LTHE.
(4) Cold-work shows harmful effect on the LTHE.
