"Haruna Ishizuka,M. Takeyama,Youichi Watanabe","Effect of Si and Cr Additions on Surface Oxide/Nitride Layers in a Fe-0.4 wt.% C by Novel Salt-Bath Nitrocarburizing Treatment","Joint EPRI ? 123HiMAT International Conference","Proceedings of Joint EPRI ? 123HiMAT International Conference","EPRI & JSPS",,,"pp. 924-929",2019,Oct.
"石塚はる菜,渡邊陽一,竹山雅夫","リチウム添加した溶融塩を用いて軟窒化処理したFe-0.4mass%C合金の表層組織と成長挙動",,"熱処理","日本熱処理技術協会","Vol. 59","No. 4","pp. 215-221",2019,Aug.
"石塚はる菜,渡邊 陽一,竹山雅夫","塩浴軟窒化処理した熱間ダイス鋼の摩擦摩耗特性に及ぼす組織の影響","トライボロジー会議2019春 東京","トライボロジー会議2019春 東京予稿集",,,,"pp. 298-299",2019,