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Volume 32 (1946)
- Issue 10-12 Pages 284･･･
- Issue 7-9 Pages 265-
- Issue 4-6 Pages 252-
- Issue 1-3 Pages 238-
Volume 32, Issue 7-9
Displaying 1-7 of 7 articles from this issue
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[in Japanese]1946 Volume 32 Issue 7-9 Pages 265-266
Published: June 20, 1947
Released on J-STAGE: July 09, 2009
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T. Mishima, T. Mitsuhashi1946 Volume 32 Issue 7-9 Pages 267-269
Published: June 20, 1947
Released on J-STAGE: July 09, 2009
JOURNAL FREE ACCESS1) Quenching Cracks of alloy steels without nickel are studied by means of the repeated quenching. The tendency of quenching cracks does not decrease on account of the addition of nickel as alloying element, but that tendency decreases due to the lowering of transformation temperature by the additioh of nickel.
2) A sort of quenching cracks appears es. pecially in high carbon steel and Si-Mn-Cr steel, which is concerned to the existence of the residual carbides.
3) The rejecting methods of the quenching cracks of low W-Cr steel on account of machining stress are studied. The method to reject that quenching cracks is the annealing at the temperature, at which the hardness after normalising is the lowest.View full abstractDownload PDF (2024K) -
[in Japanese], [in Japanese]1946 Volume 32 Issue 7-9 Pages 270-271
Published: June 20, 1947
Released on J-STAGE: July 09, 2009
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[in Japanese]1946 Volume 32 Issue 7-9 Pages 272-273
Published: June 20, 1947
Released on J-STAGE: July 09, 2009
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T. Mishima, T. Mitsuhashi1946 Volume 32 Issue 7-9 Pages 273-276
Published: June 20, 1947
Released on J-STAGE: July 09, 2009
JOURNAL FREE ACCESSThe graphitisation of Hybrid metals (cl. 7-1.8%; Cr 0.4-0.5%; Cu 1.5-2.5%) at 900°C is investigated. In this process we have recognized two conficting phenomena following: a) deposition of temper carbon and subsquent growth of graphite; b) disappearance of graphite by absorption in the gamma iron accom panied with hardness increase after air cooling.
And in this case we recognized that graphite grows by dissolve of cementite and then AO point becomes clearer due to reformation of cementite.View full abstractDownload PDF (3643K) -
[in Japanese]1946 Volume 32 Issue 7-9 Pages 276-278
Published: June 20, 1947
Released on J-STAGE: July 09, 2009
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[in Japanese]1946 Volume 32 Issue 7-9 Pages 278-282
Published: June 20, 1947
Released on J-STAGE: July 09, 2009
JOURNAL FREE ACCESSDownload PDF (3421K)
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