Mitsubishi Heavy Industries Limited

Mitsubishi Jukogyo Kabushiki Kaisha

The Tokyo Electric Power Company, Incorporated

Hiroshi Kanasaki

Toshio Yonezawa

Takaharu Maeguchi

Toshihiko Iwamura

Naoki Ogawa

Tomoyuki Inoue

Masaki Taneike

Nobuyuki Hori

Takahiro Ota

Shunichi Suzuki

Yasuhiro Sakaguchi

Koji Fujimoto

Tomoshige Takata

Tomohisa Ota

Hidehito Mimaki

Takafumi Hiro

Kenrou Takamori

Suguru Ooki

Naoki Anahara

Kosuke Kitamura

Naoki Hiranuma

Kazuhide Ajiki

Shizuo Nakada

Hideki Madokoro

Mitsuhiro Nakamura

Takao Tsuruta

A test piece preparation step of preparing a test piece () including a welding structure in which a welding material formed of an austenitic alloy is welded to a member formed of low-alloy steel or low-carbon steel, a hydrogen supply step of supplying hydrogen to the test piece (), and a characteristic stress acquisition step of applying a load (F) to the test piece () to which hydrogen was supplied and acquiring a characteristic stress showing material mechanical properties of the test piece () are executed.

Method for determining characteristic stress of welding structure, method for designing welded structure, and method for manufacturing welded structure

A condition setting process of determining peening conditions for water jet peening on a peening target object, an analysis process of analyzing a jet when a liquid is jetted from a nozzle model to a peening target object model and obtaining a void rate that is a volume rate of air bubbles contained in a unit volume of the liquid and a collapse rate that is a volume of the air bubbles collapsing in a unit time in the unit volume of the liquid in each position on a surface of the peening target object model, a shock pressure correlation value calculation process of obtaining a shock pressure correlation value that is a product of the void rate and the collapse rate in each position, and a range calculation process of obtaining an effective processing range in which the shock pressure correlation value on the surface of the peening target object model is greater than a predetermined value, based on the shock pressure correlation value in each position.

Method of pre-evaluating water jet peening, recording medium having program recorded thereon to execute the method, device for executing the method, and water jet peening method

There are provided an austenitic stainless steel having high stress corrosion crack resistance, characterized by containing, in percent by weight, 0.030% or less C, 0.1% or less Si, 2.0% or less Mn, 0.03% or less P, 0.002% or less S, 11 to 26% Ni, 17 to 30% Cr, 3% or less Mo, and 0.01% or less N, the balance substantially being Fe and unavoidable impurities; a manufacturing method for an austenitic stainless steel, characterized in that a billet consisting of the said austenitic stainless steel is subjected to solution heat treatment at a temperature of 1000 to 1150&#xb0; C.; and a pipe and a in-furnace structure for a nuclear reactor to which the said austenitic stainless steel is applied.

Austenitic stainless steel, manufacturing method for the same, and structure using the same

High-nickel austenitic stainless steel resistant to degradation by

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Tokyo, Japan

Hiroshi Kanasaki